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    <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-23224] Remove obsolete ShardRegistry::QueryResponse::opTime field from ShardRegistry::QueryResponse</title>
                <link>https://jira.mongodb.org/browse/SERVER-23224</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It&apos;s the return value of ShardRegistry::_exhaustiveFindOnConfig, which is called down the chain by CatalogManagerReplicaSet::_exhaustiveFindOnConfig, which extracts the ShardRegistry::QueryResponse::opTime and returns it as StatusWith&amp;lt;OpTimePair&amp;lt;vector&amp;lt;BSONObj&amp;gt;&amp;gt;&amp;gt;.&lt;/p&gt;

&lt;p&gt;CatalogManagerReplicaSet::_exhaustiveFindOnConfig has a lot of callers, some of which have invariants on the returned opTime.&lt;/p&gt;</description>
                <environment></environment>
        <key id="273583">SERVER-23224</key>
            <summary>Remove obsolete ShardRegistry::QueryResponse::opTime field from ShardRegistry::QueryResponse</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="esha.maharishi@mongodb.com">Esha Maharishi</assignee>
                                    <reporter username="esha.maharishi@mongodb.com">Esha Maharishi</reporter>
                        <labels>
                    </labels>
                <created>Fri, 18 Mar 2016 15:00:06 +0000</created>
                <updated>Thu, 2 Jun 2016 18:22:35 +0000</updated>
                            <resolved>Thu, 2 Jun 2016 18:22:35 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1282721" author="schwerin" created="Thu, 2 Jun 2016 18:22:35 +0000"  >&lt;p&gt;This isn&apos;t in the way of anything. If it ever prevents other refactoring or new code, we can do it then.&lt;/p&gt;</comment>
                            <comment id="1232626" author="renctan" created="Mon, 11 Apr 2016 22:49:10 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=spencer&quot; class=&quot;user-hover&quot; rel=&quot;spencer&quot;&gt;spencer&lt;/a&gt; The if statement in ChunkManager does not provide us full protection because it is possible for older data to have newer opTime. This is because the opTime returned in the metadata is the opTime after performing the read and is designed specifically for guaranteeing that if you use that opTime for readAfterOpTime, you will never get back in time reads.&lt;/p&gt;

&lt;p&gt;So, I propose we get rid of that check since it gives us a false sense of security.&lt;/p&gt;</comment>
                            <comment id="1232615" author="spencer" created="Mon, 11 Apr 2016 22:40:56 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=esha.maharishi&quot; class=&quot;user-hover&quot; rel=&quot;esha.maharishi&quot;&gt;esha.maharishi&lt;/a&gt;, did we determine that we can&apos;t do this because it&apos;s still used in the ChunkManager loading code?  &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/s/config.cpp#L419-L421&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/s/config.cpp#L419-L421&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;CC &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt;&lt;/p&gt;</comment>
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