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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-51342] ShardRegistry should forget connection strings of removed shards</title>
                <link>https://jira.mongodb.org/browse/SERVER-51342</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/9cc6fab62d/src/mongo/s/client/shard_registry.cpp#L401&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;entry for a shard in &lt;tt&gt;_latestConnStrings&lt;/tt&gt;&lt;/a&gt; isn&apos;t removed when that shard is removed from the cluster.  This is harmless in the sense that it will be skipped and not used, but it needlessly wastes memory, and could cause problems if a shard is later re-added with the same replica set name as the removed shard was using.  Therefore this entry should be removed &lt;a href=&quot;https://github.com/mongodb/mongo/blob/9cc6fab62d/src/mongo/s/client/shard_registry.cpp#L189-L203&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;when the ShardRegistry notices that the shard has been removed from the cluster&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1500932">SERVER-51342</key>
            <summary>ShardRegistry should forget connection strings of removed shards</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="tommaso.tocci@mongodb.com">Tommaso Tocci</assignee>
                                    <reporter username="kevin.pulo@mongodb.com">Kevin Pulo</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Sun, 4 Oct 2020 12:39:04 +0000</created>
                <updated>Sun, 29 Oct 2023 22:02:24 +0000</updated>
                            <resolved>Sun, 11 Oct 2020 13:26:16 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3438477" author="xgen-internal-githook" created="Sun, 11 Oct 2020 13:24:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tommaso Tocci&apos;, &apos;email&apos;: &apos;tommaso.tocci@mongodb.com&apos;, &apos;username&apos;: &apos;toto-dev&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51342&quot; title=&quot;ShardRegistry should forget connection strings of removed shards&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51342&quot;&gt;&lt;del&gt;SERVER-51342&lt;/del&gt;&lt;/a&gt; ShardRegistry should forget connection strings of removed shards&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bd1f707b4e981aeea09d3a0e0774973b9c223eb2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bd1f707b4e981aeea09d3a0e0774973b9c223eb2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3436487" author="tommaso.tocci" created="Fri, 9 Oct 2020 10:34:07 +0000"  >&lt;p&gt;These changes are making the count10.js test to fail because the currentOp output get truncated and the match filter can&apos;t be applied, thus &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51450&quot; title=&quot;Use new $currentOp aggregation pipeline stage in count10.js&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51450&quot;&gt;&lt;del&gt;SERVER-51450&lt;/del&gt;&lt;/a&gt; became a prerequisite for this to be committed.&lt;/p&gt;</comment>
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            <issuekey id="1508648">SERVER-51450</issuekey>
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            <issuekey id="1496903">SERVER-51257</issuekey>
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