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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-68851] Remove wait for collection critical section from service entry point</title>
                <link>https://jira.mongodb.org/browse/SERVER-68851</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, on stale shard version on the shard, if the collection critical section is held, the shard will wait for the critical section to complete and then return stale shard version. This makes tracking the time spent in the critical section and during refreshes harder because there is a wait for the critical section outside of the onShardVersionMismatch function.&lt;/p&gt;

&lt;p&gt;In order to make timing this region simpler, we can remove this extra wait for critical section and rely on those in onShardVersionMismatch.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2114785">SERVER-68851</key>
            <summary>Remove wait for collection critical section from service entry point</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="allison.easton@mongodb.com">Allison Easton</assignee>
                                    <reporter username="allison.easton@mongodb.com">Allison Easton</reporter>
                        <labels>
                    </labels>
                <created>Tue, 16 Aug 2022 07:29:02 +0000</created>
                <updated>Sun, 29 Oct 2023 21:34:28 +0000</updated>
                            <resolved>Tue, 23 Aug 2022 12:20:23 +0000</resolved>
                                                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4769869" author="xgen-internal-githook" created="Tue, 23 Aug 2022 11:52:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Allison Easton&apos;, &apos;email&apos;: &apos;allison.easton@mongodb.com&apos;, &apos;username&apos;: &apos;allisoneaston&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68851&quot; title=&quot;Remove wait for collection critical section from service entry point&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68851&quot;&gt;&lt;del&gt;SERVER-68851&lt;/del&gt;&lt;/a&gt; Remove wait for collection critical section from service entry point&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7b72555ab5c89dd4554ae1f4c7be06217e9b9de7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7b72555ab5c89dd4554ae1f4c7be06217e9b9de7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4759538" author="allison.easton" created="Thu, 18 Aug 2022 07:31:30 +0000"  >&lt;p&gt;Currently we are returning to the router immediately after &lt;a href=&quot;https://github.com/mongodb/mongo/blob/582fc560a31731a674e8e0bfac78981aff2b9fe8/src/mongo/db/service_entry_point_common.cpp#L1830-L1838&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the wait in the service entry point&lt;/a&gt;. So you would only hit one, so there wouldn&apos;t be a noop.&lt;/p&gt;

&lt;p&gt;The difference for accounting purposes is that we currently aren&apos;t measuring the one in the service entry point. The measuring is in the onShardVersionMismatch function.&lt;/p&gt;</comment>
                            <comment id="4758241" author="kaloian.manassiev" created="Wed, 17 Aug 2022 17:46:23 +0000"  >&lt;p&gt;This is a good cleanup (assuming that all SSV errors reach to the onShardVersionMismatch function). However, just curious wouldn&apos;t one of the two waits be a no-op if the first one waited? I.e., does it matter for accounting purposes?&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="1689530">SERVER-56304</issuekey>
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