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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 `flush_trigger` mod in crate `meta_srv`."><title>meta_srv::region::flush_trigger - 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-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="meta_srv" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0-nightly (ac7f9ec7d 2026-03-20)" data-channel="nightly" data-search-js="search-63369b7b.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-5013f961.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 flush_trigger</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../meta_srv/index.html">meta_<wbr>srv</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module flush_<wbr>trigger</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><li><a href="#constants" title="Constants">Constants</a></li><li><a href="#functions" title="Functions">Functions</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In meta_<wbr>srv::<wbr>region</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">meta_srv</a>::<wbr><a href="../index.html">region</a></div><h1>Module <span>flush_<wbr>trigger</span> <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/meta_srv/region/flush_trigger.rs.html#15-791">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.RegionFlushTicker.html" title="struct meta_srv::region::flush_trigger::RegionFlushTicker">Region<wbr>Flush<wbr>Ticker</a></dt><dd><a href="struct.RegionFlushTicker.html" title="struct meta_srv::region::flush_trigger::RegionFlushTicker">RegionFlushTicker</a> is used to trigger region flush trigger periodically.</dd><dt><a class="struct" href="struct.RegionFlushTrigger.html" title="struct meta_srv::region::flush_trigger::RegionFlushTrigger">Region<wbr>Flush<wbr>Trigger</a></dt><dd><a href="struct.RegionFlushTrigger.html" title="struct meta_srv::region::flush_trigger::RegionFlushTrigger"><code>RegionFlushTrigger</code></a> is used to ensure that the estimated WAL replay size
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stays below a certain threshold by triggering a region flush when the estimated
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WAL replay size exceeds that threshold. This helps improve datanode startup
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speed and reduce the overall startup time.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.Event.html" title="enum meta_srv::region::flush_trigger::Event">Event</a></dt><dd><a href="enum.Event.html" title="enum meta_srv::region::flush_trigger::Event"><code>Event</code></a> represents various types of events that can be processed by the region flush ticker.</dd></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.RECENT_DURATION.html" title="constant meta_srv::region::flush_trigger::RECENT_DURATION">RECENT_<wbr>DURATION</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>The duration of the recent period.</dd><dt><a class="constant" href="constant.TICKER_INTERVAL.html" title="constant meta_srv::region::flush_trigger::TICKER_INTERVAL">TICKER_<wbr>INTERVAL</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>The interval of the region flush ticker.</dd></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.filter_regions_by_replay_size.html" title="fn meta_srv::region::flush_trigger::filter_regions_by_replay_size">filter_<wbr>regions_<wbr>by_<wbr>replay_<wbr>size</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Filter regions based on the estimated replay size.</dd><dt><a class="fn" href="fn.group_regions_by_leader.html" title="fn meta_srv::region::flush_trigger::group_regions_by_leader">group_<wbr>regions_<wbr>by_<wbr>leader</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Group regions by leader.</dd><dt><a class="fn" href="fn.is_recent.html" title="fn meta_srv::region::flush_trigger::is_recent">is_<wbr>recent</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Check if the timestamp is recent.</dd><dt><a class="fn" href="fn.should_persist_region_checkpoint.html" title="fn meta_srv::region::flush_trigger::should_persist_region_checkpoint">should_<wbr>persist_<wbr>region_<wbr>checkpoint</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Determines whether a region checkpoint should be persisted based on current and persisted state.</dd></dl><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><dl class="item-table"><dt><a class="type" href="type.RegionFlushTickerRef.html" title="type meta_srv::region::flush_trigger::RegionFlushTickerRef">Region<wbr>Flush<wbr>Ticker<wbr>Ref</a><span title="Restricted Visibility"> 🔒</span> </dt></dl></section></div></main></body></html> |