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    <title>MongoDB Jira</title>
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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-76626] Investigate test failures for concurrent $out and shardCollection commands</title>
                <link>https://jira.mongodb.org/browse/SERVER-76626</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-74061&quot; title=&quot;Support $out for time-series on secondaries and sharded clusters&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-74061&quot;&gt;&lt;del&gt;SERVER-74061&lt;/del&gt;&lt;/a&gt; we noticed occasional failures in concurrency tests &lt;a href=&quot;https://github.com/10gen/mongo/blob/master/jstests/concurrency/fsm_workloads/timeseries_agg_out.js&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;timeseries_agg_out.js&lt;/a&gt; that failed with the following error.&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;Found metadata inconsistencies: Found collection on non primary shard with mismatching UUID &lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;These errors happened were noticed with time-series collections. The errors stopped when we changed shardCollection to a no-op, but this error should be investigated further and the shardCollection should be changed from a no-op.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2326579">SERVER-76626</key>
            <summary>Investigate test failures for concurrent $out and shardCollection commands</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="gil.alon@mongodb.com">Gil Alon</assignee>
                                    <reporter username="gil.alon@mongodb.com">Gil Alon</reporter>
                        <labels>
                    </labels>
                <created>Thu, 27 Apr 2023 21:24:27 +0000</created>
                <updated>Sun, 29 Oct 2023 21:22:22 +0000</updated>
                            <resolved>Tue, 9 May 2023 13:05:02 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                    <fixVersion>7.0.3</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5410005" author="xgen-internal-githook" created="Mon, 8 May 2023 22:45:11 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Gil Alon&apos;, &apos;email&apos;: &apos;gil.alon@mongodb.com&apos;, &apos;username&apos;: &apos;galon1&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-76626&quot; title=&quot;Investigate test failures for concurrent $out and shardCollection commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-76626&quot;&gt;&lt;del&gt;SERVER-76626&lt;/del&gt;&lt;/a&gt; Add a lock to the view namespace when renaming buckets collection for $out&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b8a5d658f5e9df7a4eab1c9310d9a708cbc99a05&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b8a5d658f5e9df7a4eab1c9310d9a708cbc99a05&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2332170">SERVER-76848</issuekey>
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