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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-57276] Capture max/min percent complete in FTDC metrics as seen by the commit monitor</title>
                <link>https://jira.mongodb.org/browse/SERVER-57276</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This tickets adds a new graph to FTDC. We want to display the maximum and minimum remaining operation time reported to the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/336e1e37c68cc1db06f12d18d2500724e7264499/src/mongo/db/s/resharding/resharding_coordinator_commit_monitor.cpp#L135&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;commit monitor&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1760264">SERVER-57276</key>
            <summary>Capture max/min percent complete in FTDC metrics as seen by the commit monitor</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="junhson.jean-baptiste@mongodb.com">Junhson Jean-Baptiste</assignee>
                                    <reporter username="lamont.nelson@mongodb.com">Lamont Nelson</reporter>
                        <labels>
                            <label>PM-234-T-metrics</label>
                    </labels>
                <created>Fri, 28 May 2021 03:50:39 +0000</created>
                <updated>Sun, 29 Oct 2023 21:52:57 +0000</updated>
                            <resolved>Fri, 16 Jul 2021 21:41:50 +0000</resolved>
                                                    <fixVersion>5.0.4</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4106849" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:10:39 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="4077714" author="xgen-internal-githook" created="Wed, 22 Sep 2021 15:33:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Junhson Jean-Baptiste&apos;, &apos;email&apos;: &apos;junhson.jean-baptiste@mongodb.com&apos;, &apos;username&apos;: &apos;junhsonjb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57276&quot; title=&quot;Capture max/min percent complete in FTDC metrics as seen by the commit monitor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57276&quot;&gt;&lt;del&gt;SERVER-57276&lt;/del&gt;&lt;/a&gt; Capture max/min percent complete in FTDC metrics as seen by the commit monitor&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 181a798b2f6bf25cbab21050a34ab39e30fd8669)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a363054396df92af8da681d3743df9a17f5aadbb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a363054396df92af8da681d3743df9a17f5aadbb&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3943817" author="xgen-internal-githook" created="Thu, 15 Jul 2021 15:33:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Junhson Jean-Baptiste&apos;, &apos;email&apos;: &apos;junhson.jean-baptiste@mongodb.com&apos;, &apos;username&apos;: &apos;junhsonjb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57276&quot; title=&quot;Capture max/min percent complete in FTDC metrics as seen by the commit monitor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57276&quot;&gt;&lt;del&gt;SERVER-57276&lt;/del&gt;&lt;/a&gt; Capture max/min percent complete in FTDC metrics as seen by the commit monitor&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/181a798b2f6bf25cbab21050a34ab39e30fd8669&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/181a798b2f6bf25cbab21050a34ab39e30fd8669&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3857107" author="bruce.lucas@10gen.com" created="Thu, 3 Jun 2021 13:00:39 +0000"  >&lt;p&gt;Makes sense, thanks.&lt;/p&gt;</comment>
                            <comment id="3854081" author="max.hirschhorn@10gen.com" created="Wed, 2 Jun 2021 16:07:39 +0000"  >&lt;p&gt;The resharding coordinator receives one value at a single time instant from each recipient shard of the estimate for how long resharding has remaining. I believe the idea on this ticket to summarize those estimates as Min(all recipient shards) and Max(all recipient shards) in FTDC. The Max(all recipient shards) is also used by the resharding coordinator to flip of switch of when to engage the critical section and begin blocking writes.&lt;/p&gt;

&lt;p&gt;I believe already have the Max(all recipient shards) as &lt;a href=&quot;https://github.com/mongodb/mongo/blob/8210bff0c499fb76e6c6149b21ab33df98097d7c/src/mongo/db/s/resharding/resharding_metrics.cpp#L49&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;remainingOperationTimeEstimated in $currentOp&lt;/a&gt; and so we could a similar name for serverStatus/FTDC.&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;(not attached to these names to whoever picks this ticket up)&lt;/p&gt;

&lt;p&gt;These metrics would be listed under the &quot;shardingStatistics.resharding&quot; object we already created during the resharding project.&lt;/p&gt;</comment>
                            <comment id="3853919" author="bruce.lucas@10gen.com" created="Wed, 2 Jun 2021 15:23:28 +0000"  >&lt;p&gt;I assume this means to add some new metrics to serverStatus? Can you please sketch out the proposed new metrics, e.g. what path in serverStatus. Also, can you clarify the semantics - min and max over what? Is this min at a given point in time over some set of numbers, or is it the min and max of a single number over a time range? If the later, what time range? Or is it something else?&lt;/p&gt;</comment>
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