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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-15402] Improve ShardPtr/ConnectionString management for commands and setVersion</title>
                <link>https://jira.mongodb.org/browse/SERVER-15402</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After some profiling of mongos performance, seems like we have some low-hanging fruit with broad impact around creating too many copies of Shards during versioning operations and (potentially related) building copies of ConnectionStrings from Shard hostnames.&lt;/p&gt;</description>
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        <key id="160280">SERVER-15402</key>
            <summary>Improve ShardPtr/ConnectionString management for commands and setVersion</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="9">Done</resolution>
                                        <assignee username="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="greg_10gen">Greg Studer</reporter>
                        <labels>
                            <label>28qa</label>
                    </labels>
                <created>Thu, 25 Sep 2014 19:42:34 +0000</created>
                <updated>Mon, 19 Oct 2015 14:56:04 +0000</updated>
                            <resolved>Mon, 19 Oct 2015 14:56:04 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1064243" author="schwerin" created="Mon, 19 Oct 2015 14:56:04 +0000"  >&lt;p&gt;The mongos refactor during 3.1 development should have taken care of this, and certainly invalidated any profiling analysis done on earlier versions.&lt;/p&gt;</comment>
                            <comment id="741711" author="xgen-internal-githook" created="Wed, 15 Oct 2014 15:03:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;renctan&apos;, u&apos;name&apos;: u&apos;Randolph Tan&apos;, u&apos;email&apos;: u&apos;randolph@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15402&quot; title=&quot;Improve ShardPtr/ConnectionString management for commands and setVersion&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15402&quot;&gt;&lt;del&gt;SERVER-15402&lt;/del&gt;&lt;/a&gt; Improve ShardPtr/ConnectionString management for commands and setVersion&lt;/p&gt;

&lt;p&gt;Make Shard almost logically immutable. The only non-const method remaining is reset(), which will eventually be removed.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/126069374744c62c65fac86a492531d658961f40&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/126069374744c62c65fac86a492531d658961f40&lt;/a&gt;&lt;/p&gt;</comment>
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