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window.SIDEBAR_ITEMS = {"enum":["CountdownCommand"],"struct":["CountdownTask","CountdownTaskHandle","RegionAliveKeeper"],"trait":["CountdownTaskHandlerExt"],"type":["CountdownTaskHandlerExtRef"]};
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Extension trait for CountdownTaskHandlerExt to reset deadline of a region."><title>CountdownTaskHandlerExt in datanode::alive_keeper - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">CountdownTaskHandlerExt</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Countdown<wbr>Task<wbr>Handler<wbr>Ext</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.reset_deadline" title="reset_deadline">reset_deadline</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>alive_<wbr>keeper</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">alive_keeper</a></div><h1>Trait <span class="trait">Countdown<wbr>Task<wbr>Handler<wbr>Ext</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/alive_keeper.rs.html#307-316">Source</a> </span></div><pre class="rust item-decl"><code>pub trait CountdownTaskHandlerExt: <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> {
// Required method
fn <a href="#tymethod.reset_deadline" class="fn">reset_deadline</a>&lt;'life0, 'life1, 'async_trait&gt;(
&amp;'life0 self,
region_server: &amp;'life1 <a class="struct" href="../region_server/struct.RegionServer.html" title="struct datanode::region_server::RegionServer">RegionServer</a>,
region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>,
role: <a class="enum" href="../../store_api/region_engine/enum.RegionRole.html" title="enum store_api::region_engine::RegionRole">RegionRole</a>,
deadline: Instant,
extension_info: <a class="struct" href="https://doc.rust-lang.org/1.98.1/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap">HashMap</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, <a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.u8.html">u8</a>&gt;&gt;,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.98.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>&lt;Output = <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'async_trait&gt;&gt;
<span class="where">where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait</span>;
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Extension trait for <a href="trait.CountdownTaskHandlerExt.html" title="trait datanode::alive_keeper::CountdownTaskHandlerExt">CountdownTaskHandlerExt</a> to reset deadline of a region.</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><section id="tymethod.reset_deadline" class="method"><a class="src rightside" href="../../src/datanode/alive_keeper.rs.html#308-315">Source</a><h4 class="code-header">fn <a href="#tymethod.reset_deadline" class="fn">reset_deadline</a>&lt;'life0, 'life1, 'async_trait&gt;(
&amp;'life0 self,
region_server: &amp;'life1 <a class="struct" href="../region_server/struct.RegionServer.html" title="struct datanode::region_server::RegionServer">RegionServer</a>,
region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>,
role: <a class="enum" href="../../store_api/region_engine/enum.RegionRole.html" title="enum store_api::region_engine::RegionRole">RegionRole</a>,
deadline: Instant,
extension_info: <a class="struct" href="https://doc.rust-lang.org/1.98.1/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap">HashMap</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, <a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.u8.html">u8</a>&gt;&gt;,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.98.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>&lt;Output = <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'async_trait&gt;&gt;<div class="where">where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,</div></h4></section></div><h2 id="dyn-compatibility" class="section-header">Dyn Compatibility<a href="#dyn-compatibility" class="anchor">§</a></h2><div class="dyn-compatibility-info"><p>This trait <b>is</b> <a href="https://doc.rust-lang.org/1.98.1/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety".</i></p></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../../trait.impl/datanode/alive_keeper/trait.CountdownTaskHandlerExt.js" async></script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `CountdownTaskHandlerExtRef` type in crate `datanode`."><title>CountdownTaskHandlerExtRef in datanode::alive_keeper - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc type"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">CountdownTaskHandlerExtRef</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Countdown<wbr>Task<wbr>Handler<wbr>ExtRef</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>alive_<wbr>keeper</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">alive_keeper</a></div><h1>Type Alias <span class="type">Countdown<wbr>Task<wbr>Handler<wbr>ExtRef</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/alive_keeper.rs.html#303">Source</a> </span></div><pre class="rust item-decl"><code>pub type CountdownTaskHandlerExtRef = <a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;dyn <a class="trait" href="trait.CountdownTaskHandlerExt.html" title="trait datanode::alive_keeper::CountdownTaskHandlerExt">CountdownTaskHandlerExt</a>&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub struct CountdownTaskHandlerExtRef { <span class="comment">/* private fields */</span> }</code></pre><script src="../../type.impl/alloc/sync/struct.Arc.js" data-self-path="datanode::alive_keeper::CountdownTaskHandlerExtRef" async></script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Datanode configurations"><title>datanode::config - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module config</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module config</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a></div><h1>Module <span>config</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/config.rs.html#15-287">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Datanode configurations</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Open all regions belong to this datanode."><title>open_all_regions in datanode::datanode - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">open_all_regions</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">datanode</a></div><h1>Function <span class="fn">open_<wbr>all_<wbr>regions</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/datanode.rs.html#937-1051">Source</a> </span></div><pre class="rust item-decl"><code>async fn open_all_regions(
region_server: <a class="struct" href="../region_server/struct.RegionServer.html" title="struct datanode::region_server::RegionServer">RegionServer</a>,
region_open_requests: <a class="struct" href="../utils/struct.RegionOpenRequests.html" title="struct datanode::utils::RegionOpenRequests">RegionOpenRequests</a>,
open_with_writable: <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.bool.html">bool</a>,
init_regions_parallelism: <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.usize.html">usize</a>,
ignore_nonexistent_region: <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.bool.html">bool</a>,
) -&gt; <a class="type" href="../error/type.Result.html" title="type datanode::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Open all regions belong to this datanode.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Keeps the first shutdown error and logs the later ones."><title>record_shutdown_error in datanode::datanode - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">record_shutdown_error</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">datanode</a></div><h1>Function <span class="fn">record_<wbr>shutdown_<wbr>error</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/datanode.rs.html#815-823">Source</a> </span></div><pre class="rust item-decl"><code>pub(crate) fn record_shutdown_error(
first_error: &amp;mut <a class="enum" href="https://doc.rust-lang.org/1.98.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="enum" href="../error/enum.Error.html" title="enum datanode::error::Error">Error</a>&gt;,
result: <a class="type" href="../error/type.Result.html" title="type datanode::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt;,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Keeps the first shutdown error and logs the later ones.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Rejects an object store WAL config the log store cannot run on."><title>validate_object_store_wal_config in datanode::datanode - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">validate_object_store_wal_config</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">datanode</a></div><h1>Function <span class="fn">validate_<wbr>object_<wbr>store_<wbr>wal_<wbr>config</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/datanode.rs.html#873-934">Source</a> </span></div><pre class="rust item-decl"><code>fn validate_object_store_wal_config(config: &amp;ObjectStoreWalConfig) -&gt; <a class="type" href="../error/type.Result.html" title="type datanode::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Rejects an object store WAL config the log store cannot run on.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Rejects repeated engine types before their configs can silently overwrite each other."><title>validate_region_engine_config in datanode::datanode - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">validate_region_engine_config</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">datanode</a></div><h1>Function <span class="fn">validate_<wbr>region_<wbr>engine_<wbr>config</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/datanode.rs.html#852-870">Source</a> </span></div><pre class="rust item-decl"><code>fn validate_region_engine_config(configs: &amp;[<a class="enum" href="../config/enum.RegionEngineConfig.html" title="enum datanode::config::RegionEngineConfig">RegionEngineConfig</a>]) -&gt; <a class="type" href="../error/type.Result.html" title="type datanode::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.unit.html">()</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Rejects repeated engine types before their configs can silently overwrite each other.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Returns the object store that holds the WAL objects: the default one for an empty `storage_provider`, otherwise the configured provider with that name."><title>wal_object_store in datanode::datanode - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">wal_object_store</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">datanode</a></div><h1>Function <span class="fn">wal_<wbr>object_<wbr>store</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/datanode.rs.html#827-849">Source</a> </span></div><pre class="rust item-decl"><code>fn wal_object_store(
object_store_manager: &amp;ObjectStoreManager,
storage: &amp;<a class="struct" href="../config/struct.StorageConfig.html" title="struct datanode::config::StorageConfig">StorageConfig</a>,
storage_provider: &amp;<a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.str.html">str</a>,
) -&gt; <a class="type" href="../error/type.Result.html" title="type datanode::error::Result">Result</a>&lt;ObjectStore&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Returns the object store that holds the WAL objects: the default one for an
empty <code>storage_provider</code>, otherwise the configured provider with that name.</p>
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</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.Datanode.html" title="struct datanode::datanode::Datanode">Datanode</a></dt><dd>Datanode service.</dd><dt><a class="struct" href="struct.DatanodeBuilder.html" title="struct datanode::datanode::DatanodeBuilder">Datanode<wbr>Builder</a></dt><dt><a class="struct" href="struct.ProcedureConfig.html" title="struct datanode::datanode::ProcedureConfig">Procedure<wbr>Config</a></dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.open_all_regions.html" title="fn datanode::datanode::open_all_regions">open_<wbr>all_<wbr>regions</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Open all regions belong to this datanode.</dd><dt><a class="fn" href="fn.record_shutdown_error.html" title="fn datanode::datanode::record_shutdown_error">record_<wbr>shutdown_<wbr>error</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Keeps the first shutdown error and logs the later ones.</dd><dt><a class="fn" href="fn.validate_object_store_wal_config.html" title="fn datanode::datanode::validate_object_store_wal_config">validate_<wbr>object_<wbr>store_<wbr>wal_<wbr>config</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Rejects an object store WAL config the log store cannot run on.</dd><dt><a class="fn" href="fn.validate_region_engine_config.html" title="fn datanode::datanode::validate_region_engine_config">validate_<wbr>region_<wbr>engine_<wbr>config</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Rejects repeated engine types before their configs can silently overwrite each other.</dd><dt><a class="fn" href="fn.wal_object_store.html" title="fn datanode::datanode::wal_object_store">wal_<wbr>object_<wbr>store</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Returns the object store that holds the WAL objects: the default one for an
empty <code>storage_provider</code>, otherwise the configured provider with that name.</dd></dl></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `Result` type in crate `datanode`."><title>Result in datanode::error - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc type"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Result</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Result</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3><h3><a href="#variants">Variants</a></h3><ul class="block variant"><li><a href="#variant.Err" title="Err">Err</a></li><li><a href="#variant.Ok" title="Ok">Ok</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>error</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">error</a></div><h1>Type Alias <span class="type">Result</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/error.rs.html#476">Source</a> </span></div><pre class="rust item-decl"><code>pub type Result&lt;T&gt; = <a class="enum" href="https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, <a class="enum" href="enum.Error.html" title="enum datanode::error::Error">Error</a>&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub enum Result&lt;T&gt; {
Ok(T),
Err(<a class="enum" href="enum.Error.html" title="enum datanode::error::Error">Error</a>),
}</code></pre><h2 id="variants" class="variants section-header">Variants<a href="#variants" class="anchor">§</a></h2><div class="variants"><section id="variant.Ok" class="variant"><a href="#variant.Ok" class="anchor">§</a><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><h3 class="code-header">Ok(T)</h3></section><div class="docblock"><p>Contains the success value</p>
</div><section id="variant.Err" class="variant"><a href="#variant.Err" class="anchor">§</a><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><h3 class="code-header">Err(<a class="enum" href="enum.Error.html" title="enum datanode::error::Error">Error</a>)</h3></section><div class="docblock"><p>Contains the error value</p>
</div></div><script src="../../type.impl/core/result/enum.Result.js" data-self-path="datanode::error::Result" async></script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `new_region_server_event_channel` fn in crate `datanode`."><title>new_region_server_event_channel in datanode::event_listener - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">new_region_server_event_channel</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>event_<wbr>listener</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">event_listener</a></div><h1>Function <span class="fn">new_<wbr>region_<wbr>server_<wbr>event_<wbr>channel</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/event_listener.rs.html#57-61">Source</a> </span></div><pre class="rust item-decl"><code>pub fn new_region_server_event_channel() -&gt; (<a class="struct" href="struct.RegionServerEventSender.html" title="struct datanode::event_listener::RegionServerEventSender">RegionServerEventSender</a>, <a class="struct" href="struct.RegionServerEventReceiver.html" title="struct datanode::event_listener::RegionServerEventReceiver">RegionServerEventReceiver</a>)</code></pre></section></div></main></body></html>
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window.SIDEBAR_ITEMS = {"enum":["RegionServerEvent"],"fn":["new_region_server_event_channel"],"struct":["NoopRegionServerEventListener","RegionServerEventReceiver","RegionServerEventSender"],"trait":["RegionServerEventListener"],"type":["RegionServerEventListenerRef"]};
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `RegionServerEventListener` trait in crate `datanode`."><title>RegionServerEventListener in datanode::event_listener - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">RegionServerEventListener</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Region<wbr>Server<wbr>Event<wbr>Listener</a></h2><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.on_region_deregistered" title="on_region_deregistered">on_region_deregistered</a></li><li><a href="#method.on_region_registered" title="on_region_registered">on_region_registered</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>event_<wbr>listener</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">event_listener</a></div><h1>Trait <span class="trait">Region<wbr>Server<wbr>Event<wbr>Listener</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/event_listener.rs.html#24-30">Source</a> </span></div><pre class="rust item-decl"><code>pub trait RegionServerEventListener: <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.98.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> {
// Provided methods
fn <a href="#method.on_region_registered" class="fn">on_region_registered</a>(&amp;self, _region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>) { ... }
<span class="item-spacer"></span> fn <a href="#method.on_region_deregistered" class="fn">on_region_deregistered</a>(&amp;self, _region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>) { ... }
}</code></pre><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.on_region_registered" class="method"><a class="src rightside" href="../../src/datanode/event_listener.rs.html#26">Source</a><h4 class="code-header">fn <a href="#method.on_region_registered" class="fn">on_region_registered</a>(&amp;self, _region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>)</h4></section></summary><div class="docblock"><p>Called <em>after</em> a new region was created/opened.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.on_region_deregistered" class="method"><a class="src rightside" href="../../src/datanode/event_listener.rs.html#29">Source</a><h4 class="code-header">fn <a href="#method.on_region_deregistered" class="fn">on_region_deregistered</a>(&amp;self, _region_id: <a class="struct" href="../../store_api/storage/descriptors/struct.RegionId.html" title="struct store_api::storage::descriptors::RegionId">RegionId</a>)</h4></section></summary><div class="docblock"><p>Called <em>after</em> a region was closed.</p>
</div></details></div><h2 id="dyn-compatibility" class="section-header">Dyn Compatibility<a href="#dyn-compatibility" class="anchor">§</a></h2><div class="dyn-compatibility-info"><p>This trait <b>is</b> <a href="https://doc.rust-lang.org/1.98.1/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety".</i></p></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><div class="negative-marker"></div><section id="impl-RegionServerEventListener-for-NoopRegionServerEventListener" class="impl"><a class="src rightside" href="../../src/datanode/event_listener.rs.html#36">Source</a><a href="#impl-RegionServerEventListener-for-NoopRegionServerEventListener" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.RegionServerEventListener.html" title="trait datanode::event_listener::RegionServerEventListener">RegionServerEventListener</a> for <a class="struct" href="struct.NoopRegionServerEventListener.html" title="struct datanode::event_listener::NoopRegionServerEventListener">NoopRegionServerEventListener</a></h3></section><section id="impl-RegionServerEventListener-for-RegionServerEventSender" class="impl"><a class="src rightside" href="../../src/datanode/event_listener.rs.html#41-53">Source</a><a href="#impl-RegionServerEventListener-for-RegionServerEventSender" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.RegionServerEventListener.html" title="trait datanode::event_listener::RegionServerEventListener">RegionServerEventListener</a> for <a class="struct" href="struct.RegionServerEventSender.html" title="struct datanode::event_listener::RegionServerEventSender">RegionServerEventSender</a></h3></section></div><script src="../../trait.impl/datanode/event_listener/trait.RegionServerEventListener.js" async></script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `RegionServerEventListenerRef` type in crate `datanode`."><title>RegionServerEventListenerRef in datanode::event_listener - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc type"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">RegionServerEventListenerRef</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Region<wbr>Server<wbr>Event<wbr>Listener<wbr>Ref</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>event_<wbr>listener</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">event_listener</a></div><h1>Type Alias <span class="type">Region<wbr>Server<wbr>Event<wbr>Listener<wbr>Ref</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/event_listener.rs.html#32">Source</a> </span></div><pre class="rust item-decl"><code>pub type RegionServerEventListenerRef = <a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="trait.RegionServerEventListener.html" title="trait datanode::event_listener::RegionServerEventListener">RegionServerEventListener</a>&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub struct RegionServerEventListenerRef(<span class="comment">/* private fields */</span>);</code></pre><script src="../../type.impl/alloc/boxed/struct.Box.js" data-self-path="datanode::event_listener::RegionServerEventListenerRef" async></script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `get_greptimedb_telemetry_task` fn in crate `datanode`."><title>get_greptimedb_telemetry_task in datanode::greptimedb_telemetry - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">get_greptimedb_telemetry_task</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In datanode::<wbr>greptimedb_<wbr>telemetry</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a>::<wbr><a href="index.html">greptimedb_telemetry</a></div><h1>Function <span class="fn">get_<wbr>greptimedb_<wbr>telemetry_<wbr>task</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/greptimedb_telemetry.rs.html#55-75">Source</a> </span></div><pre class="rust item-decl"><code>pub async fn get_greptimedb_telemetry_task(
working_home: <a class="enum" href="https://doc.rust-lang.org/1.98.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt;,
enable: <a class="primitive" href="https://doc.rust-lang.org/1.98.1/std/primitive.bool.html">bool</a>,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.98.1/alloc/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;GreptimeDBTelemetryTask&gt; <a href="#" class="tooltip" data-notable-ty="Arc&lt;GreptimeDBTelemetryTask&gt;">ⓘ</a></code></pre><script type="text/json" id="notable-traits-data">{"Arc<GreptimeDBTelemetryTask>":"<h3>Notable traits for <code><a class=\"struct\" href=\"https://doc.rust-lang.org/1.98.1/alloc/sync/struct.Arc.html\" title=\"struct alloc::sync::Arc\">Arc</a>&lt;R&gt;</code></h3><pre><code><div class=\"where\">impl&lt;R&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Read.html\" title=\"trait std::io::Read\">Read</a> for <a class=\"struct\" href=\"https://doc.rust-lang.org/1.98.1/alloc/sync/struct.Arc.html\" title=\"struct alloc::sync::Arc\">Arc</a>&lt;R&gt;<div class=\"where\">where\n R: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Read.html\" title=\"trait std::io::Read\">Read</a> + <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.IoHandle.html\" title=\"trait std::io::IoHandle\">IoHandle</a> + ?<a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/core/marker/trait.Sized.html\" title=\"trait core::marker::Sized\">Sized</a>,\n <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.98.1/std/primitive.reference.html\">&amp;'a R</a>: for&lt;'a&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Read.html\" title=\"trait std::io::Read\">Read</a>,</div></div><div class=\"where\">impl&lt;W&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Write.html\" title=\"trait std::io::Write\">Write</a> for <a class=\"struct\" href=\"https://doc.rust-lang.org/1.98.1/alloc/sync/struct.Arc.html\" title=\"struct alloc::sync::Arc\">Arc</a>&lt;W&gt;<div class=\"where\">where\n W: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Write.html\" title=\"trait std::io::Write\">Write</a> + <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.IoHandle.html\" title=\"trait std::io::IoHandle\">IoHandle</a> + ?<a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/core/marker/trait.Sized.html\" title=\"trait core::marker::Sized\">Sized</a>,\n <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.98.1/std/primitive.reference.html\">&amp;'a W</a>: for&lt;'a&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.98.1/std/io/trait.Write.html\" title=\"trait std::io::Write\">Write</a>,</div></div>"}</script></section></div></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `greptimedb_telemetry` mod in crate `datanode`."><title>datanode::greptimedb_telemetry - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datanode" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module greptimedb_telemetry</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datanode/index.html">datanode</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module greptimedb_<wbr>telemetry</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate datanode</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datanode</a></div><h1>Module <span>greptimedb_<wbr>telemetry</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datanode/greptimedb_telemetry.rs.html#15-75">Source</a> </span></div><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.StandaloneGreptimeDBTelemetryCollector.html" title="struct datanode::greptimedb_telemetry::StandaloneGreptimeDBTelemetryCollector">Standalone<wbr>GreptimeDB<wbr>Telemetry<wbr>Collector</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.get_greptimedb_telemetry_task.html" title="fn datanode::greptimedb_telemetry::get_greptimedb_telemetry_task">get_<wbr>greptimedb_<wbr>telemetry_<wbr>task</a></dt></dl></section></div></main></body></html>

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