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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-21059] Need to ensure that we never update the ShardRegistry&apos;s config OpTime to a visible but uncommitted OpTime</title>
                <link>https://jira.mongodb.org/browse/SERVER-21059</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There are at least two cases where we run a command against a config server without including a read concern (&lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/s/catalog/replset/dist_lock_catalog_impl.cpp#L332&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/s/catalog/replset/catalog_manager_replica_set.cpp#L939&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;If we don&apos;t include the &apos;majority&apos; read concern, then we&apos;ll automatically update our config server optime to the returned &apos;visible&apos; level, which will not be committed since we didn&apos;t query against the committed snapshot.&lt;/p&gt;

&lt;p&gt;This could potentially cause future config server operations to hang waiting for the visible optime to become committed, if it never does.&lt;/p&gt;</description>
                <environment></environment>
        <key id="235587">SERVER-21059</key>
            <summary>Need to ensure that we never update the ShardRegistry&apos;s config OpTime to a visible but uncommitted OpTime</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="9">Done</resolution>
                                        <assignee username="milkie@mongodb.com">Eric Milkie</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Wed, 21 Oct 2015 20:46:30 +0000</created>
                <updated>Tue, 10 Nov 2015 20:09:07 +0000</updated>
                            <resolved>Fri, 23 Oct 2015 21:39:53 +0000</resolved>
                                                    <fixVersion>3.2.0-rc1</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1069525" author="milkie" created="Fri, 23 Oct 2015 21:39:53 +0000"  >&lt;p&gt;lastVisibleOpTime field now represents the last optime in the current committed snapshot, regardless of the readConcern used.&lt;/p&gt;</comment>
                            <comment id="1069524" author="xgen-internal-githook" created="Fri, 23 Oct 2015 21:38:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;milkie&apos;, u&apos;name&apos;: u&apos;Eric Milkie&apos;, u&apos;email&apos;: u&apos;milkie@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-21059&quot; title=&quot;Need to ensure that we never update the ShardRegistry&amp;#39;s config OpTime to a visible but uncommitted OpTime&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-21059&quot;&gt;&lt;del&gt;SERVER-21059&lt;/del&gt;&lt;/a&gt; always return an optime from the committed snapshot for lastVisibleOpTime metadata&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/54130b5a8e7f98616d325a1b4edc73fefd1b012f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/54130b5a8e7f98616d325a1b4edc73fefd1b012f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1067300" author="spencer" created="Wed, 21 Oct 2015 20:47:56 +0000"  >&lt;p&gt;This should be easily fixable for the user management read commands, but is tricky for fixing the running of serverStatus since serverStatus doesn&apos;t accept a read concern.&lt;/p&gt;</comment>
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