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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/datanode/src/utils.rs`."><title>utils.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="datanode" 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">datanode/</div>utils.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><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::collections::HashMap;
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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>common_meta::DatanodeId;
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<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_meta::key::datanode_table::DatanodeTableManager;
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<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>common_meta::key::topic_name::{TopicNameKey, TopicNameManager, TopicNameValue};
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>common_meta::key::topic_region::{
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<a href=#21 id=21 data-nosnippet>21</a> ReplayCheckpoint <span class="kw">as </span>MetadataReplayCheckpoint, TopicRegionKey, TopicRegionManager,
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<a href=#22 id=22 data-nosnippet>22</a> TopicRegionValue,
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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>common_meta::kv_backend::KvBackendRef;
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<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>common_meta::wal_provider::{
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<a href=#26 id=26 data-nosnippet>26</a> RegionWalOptions, extract_topic_from_wal_options, serialize_wal_options,
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<a href=#27 id=27 data-nosnippet>27</a>};
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<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span>futures::TryStreamExt;
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<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span>snafu::ResultExt;
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<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span>store_api::metric_engine_consts::METRIC_ENGINE_NAME;
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<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span>store_api::path_utils::table_dir;
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<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span>store_api::region_request::{PathType, RegionOpenRequest, ReplayCheckpoint};
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<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span>store_api::storage::RegionId;
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<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span>tracing::info;
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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><span class="kw">use </span><span class="kw">crate</span>::error::{GetMetadataSnafu, <span class="prelude-ty">Result</span>, SerializeWalOptionsSnafu};
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<a href=#37 id=37 data-nosnippet>37</a>
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<a href=#38 id=38 data-nosnippet>38</a><span class="doccomment">/// The requests to open regions.
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<a href=#39 id=39 data-nosnippet>39</a></span><span class="kw">pub struct </span>RegionOpenRequests {
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<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">pub</span>(<span class="kw">crate</span>) leader_regions: Vec<(RegionId, RegionOpenRequest)>,
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<a href=#41 id=41 data-nosnippet>41</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
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<a href=#42 id=42 data-nosnippet>42</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) follower_regions: Vec<(RegionId, RegionOpenRequest)>,
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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>
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<a href=#45 id=45 data-nosnippet>45</a><span class="kw">impl </span>RegionOpenRequests {
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<a href=#46 id=46 data-nosnippet>46</a> <span class="doccomment">/// Splits the request set into leader and follower regions.
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<a href=#47 id=47 data-nosnippet>47</a> </span><span class="attr">#[allow(clippy::type_complexity)]
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<a href=#48 id=48 data-nosnippet>48</a> </span><span class="kw">pub fn </span>into_parts(
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<a href=#49 id=49 data-nosnippet>49</a> <span class="self">self</span>,
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<a href=#50 id=50 data-nosnippet>50</a> ) -> (
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<a href=#51 id=51 data-nosnippet>51</a> Vec<(RegionId, RegionOpenRequest)>,
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<a href=#52 id=52 data-nosnippet>52</a> Vec<(RegionId, RegionOpenRequest)>,
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<a href=#53 id=53 data-nosnippet>53</a> ) {
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<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">let </span>leader_regions = <span class="self">self</span>.leader_regions;
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<a href=#55 id=55 data-nosnippet>55</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
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<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">let </span>follower_regions = <span class="self">self</span>.follower_regions;
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<a href=#57 id=57 data-nosnippet>57</a> <span class="attr">#[cfg(not(feature = <span class="string">"enterprise"</span>))]
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<a href=#58 id=58 data-nosnippet>58</a> </span><span class="kw">let </span>follower_regions = Vec::new();
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<a href=#59 id=59 data-nosnippet>59</a> (leader_regions, follower_regions)
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<a href=#60 id=60 data-nosnippet>60</a> }
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<a href=#61 id=61 data-nosnippet>61</a>}
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<a href=#62 id=62 data-nosnippet>62</a>
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<a href=#63 id=63 data-nosnippet>63</a><span class="kw">fn </span>group_region_by_topic(
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<a href=#64 id=64 data-nosnippet>64</a> region_id: RegionId,
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<a href=#65 id=65 data-nosnippet>65</a> region_options: <span class="kw-2">&</span>RegionWalOptions,
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<a href=#66 id=66 data-nosnippet>66</a> topic_regions: <span class="kw-2">&mut </span>HashMap<String, Vec<RegionId>>,
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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="kw">if let </span><span class="prelude-val">Some</span>(topic) = extract_topic_from_wal_options(region_id, region_options) {
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<a href=#69 id=69 data-nosnippet>69</a> topic_regions.entry(topic).or_default().push(region_id);
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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>}
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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">fn </span>region_pruned_entry_ids(
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<a href=#74 id=74 data-nosnippet>74</a> topic_regions: <span class="kw-2">&</span>HashMap<String, Vec<RegionId>>,
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<a href=#75 id=75 data-nosnippet>75</a> topic_name_values: <span class="kw-2">&</span>HashMap<String, TopicNameValue>,
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<a href=#76 id=76 data-nosnippet>76</a>) -> HashMap<RegionId, u64> {
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<a href=#77 id=77 data-nosnippet>77</a> topic_regions
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<a href=#78 id=78 data-nosnippet>78</a> .iter()
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<a href=#79 id=79 data-nosnippet>79</a> .flat_map(|(topic, region_ids)| {
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<a href=#80 id=80 data-nosnippet>80</a> topic_name_values
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<a href=#81 id=81 data-nosnippet>81</a> .get(topic)
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<a href=#82 id=82 data-nosnippet>82</a> .into_iter()
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<a href=#83 id=83 data-nosnippet>83</a> .flat_map(<span class="kw">move </span>|value| {
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<a href=#84 id=84 data-nosnippet>84</a> region_ids
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<a href=#85 id=85 data-nosnippet>85</a> .iter()
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<a href=#86 id=86 data-nosnippet>86</a> .map(<span class="kw">move </span>|region_id| (<span class="kw-2">*</span>region_id, value.pruned_entry_id))
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<a href=#87 id=87 data-nosnippet>87</a> })
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<a href=#88 id=88 data-nosnippet>88</a> })
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<a href=#89 id=89 data-nosnippet>89</a> .collect()
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<a href=#90 id=90 data-nosnippet>90</a>}
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<a href=#91 id=91 data-nosnippet>91</a>
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<a href=#92 id=92 data-nosnippet>92</a><span class="kw">fn </span>get_replay_checkpoint(
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<a href=#93 id=93 data-nosnippet>93</a> region_id: RegionId,
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<a href=#94 id=94 data-nosnippet>94</a> topic_region_values: <span class="kw-2">&</span><span class="prelude-ty">Option</span><HashMap<RegionId, TopicRegionValue>>,
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<a href=#95 id=95 data-nosnippet>95</a> pruned_entry_id: <span class="prelude-ty">Option</span><u64>,
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<a href=#96 id=96 data-nosnippet>96</a> is_metric_engine: bool,
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<a href=#97 id=97 data-nosnippet>97</a>) -> <span class="prelude-ty">Option</span><ReplayCheckpoint> {
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<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">let </span>checkpoint = topic_region_values
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<a href=#99 id=99 data-nosnippet>99</a> .as_ref()
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<a href=#100 id=100 data-nosnippet>100</a> .and_then(|values| values.get(<span class="kw-2">&</span>region_id))
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<a href=#101 id=101 data-nosnippet>101</a> .and_then(|value| value.checkpoint)
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<a href=#102 id=102 data-nosnippet>102</a> .map(|checkpoint| {
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<a href=#103 id=103 data-nosnippet>103</a> MetadataReplayCheckpoint::new(checkpoint.entry_id, checkpoint.metadata_entry_id)
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<a href=#104 id=104 data-nosnippet>104</a> });
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<a href=#105 id=105 data-nosnippet>105</a>
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<a href=#106 id=106 data-nosnippet>106</a> MetadataReplayCheckpoint::merge_with_topic_pruned_entry_id(
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<a href=#107 id=107 data-nosnippet>107</a> checkpoint,
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<a href=#108 id=108 data-nosnippet>108</a> pruned_entry_id,
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<a href=#109 id=109 data-nosnippet>109</a> is_metric_engine,
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<a href=#110 id=110 data-nosnippet>110</a> )
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<a href=#111 id=111 data-nosnippet>111</a> .map(|checkpoint| ReplayCheckpoint {
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<a href=#112 id=112 data-nosnippet>112</a> entry_id: checkpoint.entry_id,
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<a href=#113 id=113 data-nosnippet>113</a> metadata_entry_id: checkpoint.metadata_entry_id,
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<a href=#114 id=114 data-nosnippet>114</a> })
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<a href=#115 id=115 data-nosnippet>115</a>}
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<a href=#116 id=116 data-nosnippet>116</a>
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<a href=#117 id=117 data-nosnippet>117</a><span class="doccomment">/// Builds region-open requests from persisted metadata.
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<a href=#118 id=118 data-nosnippet>118</a></span><span class="kw">pub async fn </span>build_region_open_requests(
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<a href=#119 id=119 data-nosnippet>119</a> node_id: DatanodeId,
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<a href=#120 id=120 data-nosnippet>120</a> kv_backend: KvBackendRef,
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<a href=#121 id=121 data-nosnippet>121</a>) -> <span class="prelude-ty">Result</span><RegionOpenRequests> {
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<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">let </span>datanode_table_manager = DatanodeTableManager::new(kv_backend.clone());
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<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">let </span>table_values = datanode_table_manager
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<a href=#124 id=124 data-nosnippet>124</a> .tables(node_id)
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<a href=#125 id=125 data-nosnippet>125</a> .try_collect::<Vec<<span class="kw">_</span>>>()
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<a href=#126 id=126 data-nosnippet>126</a> .<span class="kw">await
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<a href=#127 id=127 data-nosnippet>127</a> </span>.context(GetMetadataSnafu)<span class="question-mark">?</span>;
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<a href=#128 id=128 data-nosnippet>128</a>
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<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">let </span>topic_region_manager = TopicRegionManager::new(kv_backend.clone());
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<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">let </span>topic_name_manager = TopicNameManager::new(kv_backend);
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<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">let </span><span class="kw-2">mut </span>topic_regions = HashMap::<String, Vec<RegionId>>::new();
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<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">let </span><span class="kw-2">mut </span>regions = <span class="macro">vec!</span>[];
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<a href=#133 id=133 data-nosnippet>133</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
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<a href=#134 id=134 data-nosnippet>134</a> </span><span class="kw">let </span><span class="kw-2">mut </span>follower_regions = <span class="macro">vec!</span>[];
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<a href=#135 id=135 data-nosnippet>135</a>
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<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">for </span>table_value <span class="kw">in </span>table_values {
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<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">for </span>region_number <span class="kw">in </span>table_value.regions {
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<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">let </span>region_id = RegionId::new(table_value.table_id, region_number);
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<a href=#139 id=139 data-nosnippet>139</a> <span class="comment">// Augments region options with wal options if a wal options is provided.
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<a href=#140 id=140 data-nosnippet>140</a> </span><span class="kw">let </span><span class="kw-2">mut </span>region_options = table_value.region_info.region_options.clone();
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<a href=#141 id=141 data-nosnippet>141</a> serialize_wal_options(
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<a href=#142 id=142 data-nosnippet>142</a> <span class="kw-2">&mut </span>region_options,
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<a href=#143 id=143 data-nosnippet>143</a> region_id,
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<a href=#144 id=144 data-nosnippet>144</a> <span class="kw-2">&</span>table_value.region_info.region_wal_options,
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<a href=#145 id=145 data-nosnippet>145</a> )
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<a href=#146 id=146 data-nosnippet>146</a> .context(SerializeWalOptionsSnafu { region_id })<span class="question-mark">?</span>;
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<a href=#147 id=147 data-nosnippet>147</a> group_region_by_topic(
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<a href=#148 id=148 data-nosnippet>148</a> region_id,
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<a href=#149 id=149 data-nosnippet>149</a> <span class="kw-2">&</span>table_value.region_info.region_wal_options,
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<a href=#150 id=150 data-nosnippet>150</a> <span class="kw-2">&mut </span>topic_regions,
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<a href=#151 id=151 data-nosnippet>151</a> );
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<a href=#152 id=152 data-nosnippet>152</a>
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<a href=#153 id=153 data-nosnippet>153</a> regions.push((
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<a href=#154 id=154 data-nosnippet>154</a> region_id,
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<a href=#155 id=155 data-nosnippet>155</a> table_value.region_info.engine.clone(),
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<a href=#156 id=156 data-nosnippet>156</a> table_value.region_info.region_storage_path.clone(),
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<a href=#157 id=157 data-nosnippet>157</a> region_options,
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<a href=#158 id=158 data-nosnippet>158</a> ));
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<a href=#159 id=159 data-nosnippet>159</a> }
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<a href=#160 id=160 data-nosnippet>160</a>
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<a href=#161 id=161 data-nosnippet>161</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
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<a href=#162 id=162 data-nosnippet>162</a> </span><span class="kw">for </span>region_number <span class="kw">in </span>table_value.follower_regions {
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<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">let </span>region_id = RegionId::new(table_value.table_id, region_number);
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<a href=#164 id=164 data-nosnippet>164</a> <span class="comment">// Augments region options with wal options if a wal options is provided.
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<a href=#165 id=165 data-nosnippet>165</a> </span><span class="kw">let </span><span class="kw-2">mut </span>region_options = table_value.region_info.region_options.clone();
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<a href=#166 id=166 data-nosnippet>166</a> serialize_wal_options(
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<a href=#167 id=167 data-nosnippet>167</a> <span class="kw-2">&mut </span>region_options,
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<a href=#168 id=168 data-nosnippet>168</a> RegionId::new(table_value.table_id, region_number),
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<a href=#169 id=169 data-nosnippet>169</a> <span class="kw-2">&</span>table_value.region_info.region_wal_options,
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<a href=#170 id=170 data-nosnippet>170</a> )
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<a href=#171 id=171 data-nosnippet>171</a> .context(SerializeWalOptionsSnafu { region_id })<span class="question-mark">?</span>;
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<a href=#172 id=172 data-nosnippet>172</a> group_region_by_topic(
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<a href=#173 id=173 data-nosnippet>173</a> region_id,
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<a href=#174 id=174 data-nosnippet>174</a> <span class="kw-2">&</span>table_value.region_info.region_wal_options,
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<a href=#175 id=175 data-nosnippet>175</a> <span class="kw-2">&mut </span>topic_regions,
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<a href=#176 id=176 data-nosnippet>176</a> );
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<a href=#177 id=177 data-nosnippet>177</a>
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<a href=#178 id=178 data-nosnippet>178</a> follower_regions.push((
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<a href=#179 id=179 data-nosnippet>179</a> RegionId::new(table_value.table_id, region_number),
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<a href=#180 id=180 data-nosnippet>180</a> table_value.region_info.engine.clone(),
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<a href=#181 id=181 data-nosnippet>181</a> table_value.region_info.region_storage_path.clone(),
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<a href=#182 id=182 data-nosnippet>182</a> region_options,
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<a href=#183 id=183 data-nosnippet>183</a> ));
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<a href=#184 id=184 data-nosnippet>184</a> }
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<a href=#185 id=185 data-nosnippet>185</a> }
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<a href=#186 id=186 data-nosnippet>186</a>
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<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>topic_region_values = <span class="kw">if </span>!topic_regions.is_empty() {
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<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">let </span>keys = topic_regions
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<a href=#189 id=189 data-nosnippet>189</a> .iter()
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<a href=#190 id=190 data-nosnippet>190</a> .flat_map(|(topic, regions)| {
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<a href=#191 id=191 data-nosnippet>191</a> regions
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<a href=#192 id=192 data-nosnippet>192</a> .iter()
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<a href=#193 id=193 data-nosnippet>193</a> .map(|region_id| TopicRegionKey::new(<span class="kw-2">*</span>region_id, topic))
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<a href=#194 id=194 data-nosnippet>194</a> })
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<a href=#195 id=195 data-nosnippet>195</a> .collect::<Vec<<span class="kw">_</span>>>();
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<a href=#196 id=196 data-nosnippet>196</a> <span class="kw">let </span>topic_region_manager = topic_region_manager
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<a href=#197 id=197 data-nosnippet>197</a> .batch_get(keys)
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<a href=#198 id=198 data-nosnippet>198</a> .<span class="kw">await
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<a href=#199 id=199 data-nosnippet>199</a> </span>.context(GetMetadataSnafu)<span class="question-mark">?</span>;
|
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<a href=#200 id=200 data-nosnippet>200</a> <span class="prelude-val">Some</span>(topic_region_manager)
|
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<a href=#201 id=201 data-nosnippet>201</a> } <span class="kw">else </span>{
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<a href=#202 id=202 data-nosnippet>202</a> <span class="prelude-val">None
|
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<a href=#203 id=203 data-nosnippet>203</a> </span>};
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<a href=#204 id=204 data-nosnippet>204</a>
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<a href=#205 id=205 data-nosnippet>205</a> <span class="kw">let </span>topic_name_values = <span class="kw">if </span>!topic_regions.is_empty() {
|
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<a href=#206 id=206 data-nosnippet>206</a> <span class="kw">let </span>topics = topic_regions
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<a href=#207 id=207 data-nosnippet>207</a> .keys()
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<a href=#208 id=208 data-nosnippet>208</a> .map(|topic| TopicNameKey::new(topic))
|
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<a href=#209 id=209 data-nosnippet>209</a> .collect::<Vec<<span class="kw">_</span>>>();
|
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<a href=#210 id=210 data-nosnippet>210</a> <span class="prelude-val">Some</span>(
|
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<a href=#211 id=211 data-nosnippet>211</a> topic_name_manager
|
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<a href=#212 id=212 data-nosnippet>212</a> .batch_get(topics)
|
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<a href=#213 id=213 data-nosnippet>213</a> .<span class="kw">await
|
|
<a href=#214 id=214 data-nosnippet>214</a> </span>.context(GetMetadataSnafu)<span class="question-mark">?</span>,
|
|
<a href=#215 id=215 data-nosnippet>215</a> )
|
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<a href=#216 id=216 data-nosnippet>216</a> } <span class="kw">else </span>{
|
|
<a href=#217 id=217 data-nosnippet>217</a> <span class="prelude-val">None
|
|
<a href=#218 id=218 data-nosnippet>218</a> </span>};
|
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<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span>region_pruned_entry_ids = topic_name_values
|
|
<a href=#220 id=220 data-nosnippet>220</a> .as_ref()
|
|
<a href=#221 id=221 data-nosnippet>221</a> .map(|values| region_pruned_entry_ids(<span class="kw-2">&</span>topic_regions, values));
|
|
<a href=#222 id=222 data-nosnippet>222</a>
|
|
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw">let </span><span class="kw-2">mut </span>leader_region_requests = Vec::with_capacity(regions.len());
|
|
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">for </span>(region_id, engine, store_path, options) <span class="kw">in </span>regions {
|
|
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">let </span>table_dir = table_dir(<span class="kw-2">&</span>store_path, region_id.table_id());
|
|
<a href=#226 id=226 data-nosnippet>226</a> <span class="kw">let </span>pruned_entry_id = region_pruned_entry_ids
|
|
<a href=#227 id=227 data-nosnippet>227</a> .as_ref()
|
|
<a href=#228 id=228 data-nosnippet>228</a> .and_then(|values| values.get(<span class="kw-2">&</span>region_id).copied());
|
|
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span>checkpoint = get_replay_checkpoint(
|
|
<a href=#230 id=230 data-nosnippet>230</a> region_id,
|
|
<a href=#231 id=231 data-nosnippet>231</a> <span class="kw-2">&</span>topic_region_values,
|
|
<a href=#232 id=232 data-nosnippet>232</a> pruned_entry_id,
|
|
<a href=#233 id=233 data-nosnippet>233</a> engine == METRIC_ENGINE_NAME,
|
|
<a href=#234 id=234 data-nosnippet>234</a> );
|
|
<a href=#235 id=235 data-nosnippet>235</a> <span class="macro">info!</span>(<span class="string">"region_id: {}, checkpoint: {:?}"</span>, region_id, checkpoint);
|
|
<a href=#236 id=236 data-nosnippet>236</a> leader_region_requests.push((
|
|
<a href=#237 id=237 data-nosnippet>237</a> region_id,
|
|
<a href=#238 id=238 data-nosnippet>238</a> RegionOpenRequest {
|
|
<a href=#239 id=239 data-nosnippet>239</a> engine,
|
|
<a href=#240 id=240 data-nosnippet>240</a> table_dir,
|
|
<a href=#241 id=241 data-nosnippet>241</a> path_type: PathType::Bare,
|
|
<a href=#242 id=242 data-nosnippet>242</a> options,
|
|
<a href=#243 id=243 data-nosnippet>243</a> skip_wal_replay: <span class="bool-val">false</span>,
|
|
<a href=#244 id=244 data-nosnippet>244</a> checkpoint,
|
|
<a href=#245 id=245 data-nosnippet>245</a> requirements: Default::default(),
|
|
<a href=#246 id=246 data-nosnippet>246</a> },
|
|
<a href=#247 id=247 data-nosnippet>247</a> ));
|
|
<a href=#248 id=248 data-nosnippet>248</a> }
|
|
<a href=#249 id=249 data-nosnippet>249</a>
|
|
<a href=#250 id=250 data-nosnippet>250</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
|
|
<a href=#251 id=251 data-nosnippet>251</a> </span><span class="kw">let </span>follower_region_requests = {
|
|
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">let </span><span class="kw-2">mut </span>follower_region_requests = Vec::with_capacity(follower_regions.len());
|
|
<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">for </span>(region_id, engine, store_path, options) <span class="kw">in </span>follower_regions {
|
|
<a href=#254 id=254 data-nosnippet>254</a> <span class="kw">let </span>table_dir = table_dir(<span class="kw-2">&</span>store_path, region_id.table_id());
|
|
<a href=#255 id=255 data-nosnippet>255</a> follower_region_requests.push((
|
|
<a href=#256 id=256 data-nosnippet>256</a> region_id,
|
|
<a href=#257 id=257 data-nosnippet>257</a> RegionOpenRequest {
|
|
<a href=#258 id=258 data-nosnippet>258</a> engine,
|
|
<a href=#259 id=259 data-nosnippet>259</a> table_dir,
|
|
<a href=#260 id=260 data-nosnippet>260</a> path_type: PathType::Bare,
|
|
<a href=#261 id=261 data-nosnippet>261</a> options,
|
|
<a href=#262 id=262 data-nosnippet>262</a> skip_wal_replay: <span class="bool-val">true</span>,
|
|
<a href=#263 id=263 data-nosnippet>263</a> checkpoint: <span class="prelude-val">None</span>,
|
|
<a href=#264 id=264 data-nosnippet>264</a> requirements: Default::default(),
|
|
<a href=#265 id=265 data-nosnippet>265</a> },
|
|
<a href=#266 id=266 data-nosnippet>266</a> ));
|
|
<a href=#267 id=267 data-nosnippet>267</a> }
|
|
<a href=#268 id=268 data-nosnippet>268</a> follower_region_requests
|
|
<a href=#269 id=269 data-nosnippet>269</a> };
|
|
<a href=#270 id=270 data-nosnippet>270</a>
|
|
<a href=#271 id=271 data-nosnippet>271</a> <span class="prelude-val">Ok</span>(RegionOpenRequests {
|
|
<a href=#272 id=272 data-nosnippet>272</a> leader_regions: leader_region_requests,
|
|
<a href=#273 id=273 data-nosnippet>273</a> <span class="attr">#[cfg(feature = <span class="string">"enterprise"</span>)]
|
|
<a href=#274 id=274 data-nosnippet>274</a> </span>follower_regions: follower_region_requests,
|
|
<a href=#275 id=275 data-nosnippet>275</a> })
|
|
<a href=#276 id=276 data-nosnippet>276</a>}
|
|
</code></pre></div></section></main></body></html> |