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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="Source of the Rust file `src/common/meta/src/node_manager.rs`."><title>node_manager.rs - source</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="common_meta" 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="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.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 src"><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]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">common_meta/</div>node_manager.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
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<a href=#2 id=2 data-nosnippet>2</a>//
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<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
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<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
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<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
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<a href=#6 id=6 data-nosnippet>6</a>//
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<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
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<a href=#8 id=8 data-nosnippet>8</a>//
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<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
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<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
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<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
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<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
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<a href=#14 id=14 data-nosnippet>14</a>
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<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
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<a href=#16 id=16 data-nosnippet>16</a>
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<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>api::region::RegionResponse;
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<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>api::v1::flow::{DirtyWindowRequests, FlowRequest, FlowResponse};
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<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>api::v1::region::{InsertRequests, RegionRequest};
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">pub use </span>common_base::AffectedRows;
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<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>common_query::request::QueryRequest;
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<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_recordbatch::SendableRecordBatchStream;
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<a href=#23 id=23 data-nosnippet>23</a>
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<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::error::Result;
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<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::peer::Peer;
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<a href=#26 id=26 data-nosnippet>26</a>
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<a href=#27 id=27 data-nosnippet>27</a><span class="doccomment">/// The trait for handling requests to datanode.
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<a href=#28 id=28 data-nosnippet>28</a></span><span class="attr">#[async_trait::async_trait]
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<a href=#29 id=29 data-nosnippet>29</a></span><span class="kw">pub trait </span>Datanode: Send + Sync {
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<a href=#30 id=30 data-nosnippet>30</a> <span class="doccomment">/// Handles DML, and DDL requests.
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<a href=#31 id=31 data-nosnippet>31</a> </span><span class="kw">async fn </span>handle(<span class="kw-2">&</span><span class="self">self</span>, request: RegionRequest) -> <span class="prelude-ty">Result</span><RegionResponse>;
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<a href=#32 id=32 data-nosnippet>32</a>
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<a href=#33 id=33 data-nosnippet>33</a> <span class="doccomment">/// Handles query requests
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<a href=#34 id=34 data-nosnippet>34</a> </span><span class="kw">async fn </span>handle_query(<span class="kw-2">&</span><span class="self">self</span>, request: QueryRequest) -> <span class="prelude-ty">Result</span><SendableRecordBatchStream>;
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<a href=#35 id=35 data-nosnippet>35</a>}
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<a href=#36 id=36 data-nosnippet>36</a>
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<a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub type </span>DatanodeRef = Arc<<span class="kw">dyn </span>Datanode>;
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<a href=#38 id=38 data-nosnippet>38</a>
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<a href=#39 id=39 data-nosnippet>39</a><span class="doccomment">/// The trait for handling requests to flownode
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<a href=#40 id=40 data-nosnippet>40</a></span><span class="attr">#[async_trait::async_trait]
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<a href=#41 id=41 data-nosnippet>41</a></span><span class="kw">pub trait </span>Flownode: Send + Sync {
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<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">async fn </span>handle(<span class="kw-2">&</span><span class="self">self</span>, request: FlowRequest) -> <span class="prelude-ty">Result</span><FlowResponse>;
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<a href=#43 id=43 data-nosnippet>43</a>
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<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">async fn </span>handle_inserts(<span class="kw-2">&</span><span class="self">self</span>, request: InsertRequests) -> <span class="prelude-ty">Result</span><FlowResponse>;
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<a href=#45 id=45 data-nosnippet>45</a>
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<a href=#46 id=46 data-nosnippet>46</a> <span class="doccomment">/// Handles requests to mark time window as dirty.
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<a href=#47 id=47 data-nosnippet>47</a> </span><span class="kw">async fn </span>handle_mark_window_dirty(<span class="kw-2">&</span><span class="self">self</span>, req: DirtyWindowRequests) -> <span class="prelude-ty">Result</span><FlowResponse>;
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<a href=#48 id=48 data-nosnippet>48</a>}
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<a href=#49 id=49 data-nosnippet>49</a>
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<a href=#50 id=50 data-nosnippet>50</a><span class="kw">pub type </span>FlownodeRef = Arc<<span class="kw">dyn </span>Flownode>;
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<a href=#51 id=51 data-nosnippet>51</a>
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<a href=#52 id=52 data-nosnippet>52</a><span class="doccomment">/// Datanode manager
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<a href=#53 id=53 data-nosnippet>53</a></span><span class="attr">#[async_trait::async_trait]
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<a href=#54 id=54 data-nosnippet>54</a></span><span class="kw">pub trait </span>DatanodeManager: Send + Sync {
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<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">async fn </span>datanode(<span class="kw-2">&</span><span class="self">self</span>, node: <span class="kw-2">&</span>Peer) -> DatanodeRef;
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<a href=#56 id=56 data-nosnippet>56</a>}
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<a href=#57 id=57 data-nosnippet>57</a>
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<a href=#58 id=58 data-nosnippet>58</a><span class="kw">pub type </span>DatanodeManagerRef = Arc<<span class="kw">dyn </span>DatanodeManager>;
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<a href=#59 id=59 data-nosnippet>59</a>
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<a href=#60 id=60 data-nosnippet>60</a><span class="doccomment">/// Flownode manager
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<a href=#61 id=61 data-nosnippet>61</a></span><span class="attr">#[async_trait::async_trait]
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<a href=#62 id=62 data-nosnippet>62</a></span><span class="kw">pub trait </span>FlownodeManager: Send + Sync {
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<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">async fn </span>flownode(<span class="kw-2">&</span><span class="self">self</span>, node: <span class="kw-2">&</span>Peer) -> FlownodeRef;
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<a href=#64 id=64 data-nosnippet>64</a>}
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<a href=#65 id=65 data-nosnippet>65</a>
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<a href=#66 id=66 data-nosnippet>66</a><span class="kw">pub type </span>FlownodeManagerRef = Arc<<span class="kw">dyn </span>FlownodeManager>;
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<a href=#67 id=67 data-nosnippet>67</a>
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<a href=#68 id=68 data-nosnippet>68</a><span class="doccomment">/// Node manager
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<a href=#69 id=69 data-nosnippet>69</a></span><span class="kw">pub trait </span>NodeManager: DatanodeManager + FlownodeManager {}
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<a href=#70 id=70 data-nosnippet>70</a>
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<a href=#71 id=71 data-nosnippet>71</a><span class="kw">impl</span><T: DatanodeManager + FlownodeManager> NodeManager <span class="kw">for </span>T {}
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<a href=#72 id=72 data-nosnippet>72</a>
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<a href=#73 id=73 data-nosnippet>73</a><span class="kw">pub type </span>NodeManagerRef = Arc<<span class="kw">dyn </span>NodeManager>;
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</code></pre></div></section></main></body></html> |