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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-50635] Index consistency check at end of sharding tests isn&apos;t robust to ShardNotFound</title>
                <link>https://jira.mongodb.org/browse/SERVER-50635</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/0fa1bb77e760a5356b522393063319df9aea23a8/jstests/sharding/balancing_sessions_collection.js#L142&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;The balancing_sessions_collection.js intentionally removes one of the shards&lt;/a&gt; before shutting down the ShardingTest. It is possible for mongos to refresh its ShardRegistry after choosing to target all shards with &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0fa1bb77e760a5356b522393063319df9aea23a8/jstests/libs/override_methods/check_indexes_consistent_across_cluster.js#L44-L60&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the $indexStats aggregation&lt;/a&gt; and then triggers a ShardNotFound error.&lt;/p&gt;

&lt;p&gt;One proposal to address this issue is to retry running the $indexStats aggregation on ShardNotFound errors.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1456403">SERVER-50635</key>
            <summary>Index consistency check at end of sharding tests isn&apos;t robust to ShardNotFound</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="jack.mulrow@mongodb.com">Jack Mulrow</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Sat, 29 Aug 2020 00:10:56 +0000</created>
                <updated>Sun, 29 Oct 2023 22:03:49 +0000</updated>
                            <resolved>Tue, 8 Sep 2020 22:04:09 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                    <fixVersion>4.4.2</fixVersion>
                                    <component>Sharding</component>
                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3400259" author="xgen-internal-githook" created="Fri, 18 Sep 2020 01:31:30 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jack Mulrow&apos;, &apos;email&apos;: &apos;jack.mulrow@mongodb.com&apos;, &apos;username&apos;: &apos;jsmulrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50635&quot; title=&quot;Index consistency check at end of sharding tests isn&amp;#39;t robust to ShardNotFound&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50635&quot;&gt;&lt;del&gt;SERVER-50635&lt;/del&gt;&lt;/a&gt; Retry index consistency check at ShardingTest shutdown on ShardNotFound errors&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 24ce8e9b42bc34d111999f516b8c5b2abedb8892)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6e83937a699fb41374e129d889049b042249f413&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6e83937a699fb41374e129d889049b042249f413&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3380629" author="xgen-internal-githook" created="Tue, 8 Sep 2020 18:59:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jack Mulrow&apos;, &apos;email&apos;: &apos;jack.mulrow@mongodb.com&apos;, &apos;username&apos;: &apos;jsmulrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50635&quot; title=&quot;Index consistency check at end of sharding tests isn&amp;#39;t robust to ShardNotFound&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50635&quot;&gt;&lt;del&gt;SERVER-50635&lt;/del&gt;&lt;/a&gt; Retry index consistency check at ShardingTest shutdown on ShardNotFound errors&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/24ce8e9b42bc34d111999f516b8c5b2abedb8892&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/24ce8e9b42bc34d111999f516b8c5b2abedb8892&lt;/a&gt;&lt;/p&gt;</comment>
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