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    <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-70151] ServiceExecutorSynchronous thread_local-related leaks (revert)</title>
                <link>https://jira.mongodb.org/browse/SERVER-70151</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;(To fix BF-26477)&lt;/p&gt;

&lt;p&gt;The service_executor_bm C++ benchmark creates service worker threads in a loop, measuring the speed of this operation.&lt;/p&gt;

&lt;p&gt;Under ASAN this causes an accumulation of mmap-resident AsanThread objects that ASAN uses to track each thread, exhuasting the resource limit after roughly 64ki threads have been made. There are not 64k threads in the system. There are only a few at a time, but the ASAN-allocated resources of dead threads linger.&lt;/p&gt;

&lt;p&gt;This may be related to these service worker threads being detached.&lt;/p&gt;

&lt;p&gt;It may be some other leak of the pthreads in the code under test.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2149442">SERVER-70151</key>
            <summary>ServiceExecutorSynchronous thread_local-related leaks (revert)</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="billy.donahue@mongodb.com">Billy Donahue</assignee>
                                    <reporter username="billy.donahue@mongodb.com">Billy Donahue</reporter>
                        <labels>
                    </labels>
                <created>Fri, 30 Sep 2022 22:48:28 +0000</created>
                <updated>Sun, 29 Oct 2023 21:32:32 +0000</updated>
                            <resolved>Tue, 24 Jan 2023 18:12:46 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5137103" author="xgen-internal-githook" created="Tue, 24 Jan 2023 18:11:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Billy Donahue&apos;, &apos;email&apos;: &apos;billy.donahue@mongodb.com&apos;, &apos;username&apos;: &apos;BillyDonahue&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70151&quot; title=&quot;ServiceExecutorSynchronous thread_local-related leaks (revert)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70151&quot;&gt;&lt;del&gt;SERVER-70151&lt;/del&gt;&lt;/a&gt; no thread_locals in ServiceExecutorSynchronous&quot;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/73288a29338cee5bce896493a440ab968a9c6fb9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/73288a29338cee5bce896493a440ab968a9c6fb9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5135207" author="billy.donahue" created="Tue, 24 Jan 2023 06:40:59 +0000"  >&lt;p&gt;Reverting this service executor work in light of the performance changes attached to it.&lt;/p&gt;

&lt;p&gt;Revert: &lt;a href=&quot;https://github.com/10gen/mongo/pull/10011&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo/pull/10011&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5019010" author="billy.donahue" created="Wed, 30 Nov 2022 15:42:41 +0000"  >&lt;p&gt;ServiceExecutorSynchronous and ServiceExecutorReserved rewritten and share a base class.&lt;/p&gt;</comment>
                            <comment id="5017213" author="xgen-internal-githook" created="Tue, 29 Nov 2022 23:51:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Billy Donahue&apos;, &apos;email&apos;: &apos;billy.donahue@mongodb.com&apos;, &apos;username&apos;: &apos;BillyDonahue&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70151&quot; title=&quot;ServiceExecutorSynchronous thread_local-related leaks (revert)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70151&quot;&gt;&lt;del&gt;SERVER-70151&lt;/del&gt;&lt;/a&gt; no thread_locals in ServiceExecutorSynchronous&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bdd6f97927ef265a26763f5986d185c75862650c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bdd6f97927ef265a26763f5986d185c75862650c&lt;/a&gt;&lt;/p&gt;</comment>
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