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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-29829] Possible double call of std::thread::join though Balancer::waitForBalancerToStop</title>
                <link>https://jira.mongodb.org/browse/SERVER-29829</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The sharding balancer shutdown process eventually calls &lt;tt&gt;Balancer::waitForBalancerToStop&lt;/tt&gt; in order to wait for the balancer thread to terminate. This method is called both by replication promotion to primary and by the shutdown sequence.&lt;/p&gt;

&lt;p&gt;If a node being promoted to primary is shutdown at the same time, it is possible that two calls enter &lt;tt&gt;Balancer::waitForBalancerToStop&lt;/tt&gt; concurrently which will both call &lt;tt&gt;std::thread::join&lt;/tt&gt;, which is &lt;a href=&quot;http://en.cppreference.com/w/cpp/thread/thread/join&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;not allowed&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="397556">SERVER-29829</key>
            <summary>Possible double call of std::thread::join though Balancer::waitForBalancerToStop</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="alex.taskov@mongodb.com">Alexander Taskov</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Fri, 23 Jun 2017 16:38:33 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:44 +0000</updated>
                            <resolved>Wed, 8 Jan 2020 17:15:27 +0000</resolved>
                                    <version>3.4.10</version>
                    <version>3.5.9</version>
                                    <fixVersion>4.3.3</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2712141" author="xgen-internal-githook" created="Wed, 8 Jan 2020 16:17:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alex Taskov&apos;, &apos;email&apos;: &apos;alex.taskov@mongodb.com&apos;, &apos;username&apos;: &apos;alextaskov&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29829&quot; title=&quot;Possible double call of std::thread::join though Balancer::waitForBalancerToStop&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29829&quot;&gt;&lt;del&gt;SERVER-29829&lt;/del&gt;&lt;/a&gt; Possible double call of std::thread::join through Balancer::waitForBalancerToStop&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/dd3a688064d3c392b0bcdc500f19d9b40d4659d6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/dd3a688064d3c392b0bcdc500f19d9b40d4659d6&lt;/a&gt;&lt;/p&gt;</comment>
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