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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-69132] Additional metrics on chunk balancing performance</title>
                <link>https://jira.mongodb.org/browse/SERVER-69132</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While diagnosing balancing performance, sometime we have to look into the config.actionlogs for the balancing round information, or config.changelog/mongod logs for the time spent on each move Chunk step. It would be nice if we can also have some metrics around these in FTDC. For example:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;On CSRS primary:
	&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
		&lt;li&gt;Balancing around currently running (something like &quot;wt transaction transaction checkpoint currently running&quot;)&lt;/li&gt;
		&lt;li&gt;Number of candidate chunks found&#160;&lt;/li&gt;
		&lt;li&gt;Number of chunks moved&lt;/li&gt;
		&lt;li&gt;Number of chunks aborted&lt;/li&gt;
		&lt;li&gt;Number of chunk migrations in progress.&lt;/li&gt;
		&lt;li&gt;These may help us to understand how long the time is spent on moving chunks, and the other steps like finding chunks to move.&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
	&lt;li&gt;On shard primary:
	&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
		&lt;li&gt;moveChunk currently running&lt;/li&gt;
		&lt;li&gt;step X currently running.&lt;/li&gt;
		&lt;li&gt;These may help us to understand the slowest step(s) for the chunk migration.&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2121860">SERVER-69132</key>
            <summary>Additional metrics on chunk balancing performance</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-catalog-and-routing">Backlog - Catalog and Routing</assignee>
                                    <reporter username="linda.qin@mongodb.com">Linda Qin</reporter>
                        <labels>
                            <label>12/12</label>
                            <label>diagnostics</label>
                    </labels>
                <created>Thu, 25 Aug 2022 07:20:17 +0000</created>
                <updated>Tue, 12 Dec 2023 14:35:27 +0000</updated>
                                                                            <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="5315630" author="marcos.grillo" created="Fri, 31 Mar 2023 15:05:33 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=pierlauro.sciarelli%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;pierlauro.sciarelli@mongodb.com&quot;&gt;pierlauro.sciarelli@mongodb.com&lt;/a&gt;, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72146&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;SERVER-72146&lt;/a&gt; is more about Atlas feedback, we were planning to leave the t2 requirements for another ticket, looks like it could be this one.&lt;/p&gt;</comment>
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