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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
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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-40333] Only clone collection options once for each shard on shard collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-40333</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In current sharding code, we make a request to clone a collection&apos;s options &lt;a href=&quot;https://github.com/mongodb/mongo/blob/04b7774c27587b5b66ac9171b962145ce00d5372/src/mongo/db/s/shardsvr_shard_collection.cpp#L476-L490&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;once for each chunk, regardless of number of shards&lt;/a&gt;. This generates duplicate work &amp;#8211; we should only need to do this once for each unique shard. &lt;/p&gt;
</description>
                <environment></environment>
        <key id="722617">SERVER-40333</key>
            <summary>Only clone collection options once for each shard on shard collection</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="blake.oler@mongodb.com">Blake Oler</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Mon, 25 Mar 2019 19:04:05 +0000</created>
                <updated>Sun, 29 Oct 2023 22:22:38 +0000</updated>
                            <resolved>Tue, 26 Mar 2019 21:29:58 +0000</resolved>
                                    <version>4.0.6</version>
                    <version>4.1.9</version>
                                    <fixVersion>4.0.9</fixVersion>
                    <fixVersion>4.1.10</fixVersion>
                                    <component>Sharding</component>
                                        <votes>1</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="2204118" author="thomas.schubert" created="Fri, 5 Apr 2019 22:34:19 +0000"  >&lt;p&gt;This change gains back performance of shardCollection in 4.0 as compared to 3.6.&lt;/p&gt;</comment>
                            <comment id="2197833" author="xgen-internal-githook" created="Mon, 1 Apr 2019 15:42:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;name&apos;: &apos;Blake Oler&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-40333&quot; title=&quot;Only clone collection options once for each shard on shard collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-40333&quot;&gt;&lt;del&gt;SERVER-40333&lt;/del&gt;&lt;/a&gt; Only clone collection options once for each shard in shardsvrShardCollection&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/029336d07dd89eee17cfa090ca0b63f44883b485&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/029336d07dd89eee17cfa090ca0b63f44883b485&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2192478" author="xgen-internal-githook" created="Tue, 26 Mar 2019 21:29:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;name&apos;: &apos;Blake Oler&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-40333&quot; title=&quot;Only clone collection options once for each shard on shard collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-40333&quot;&gt;&lt;del&gt;SERVER-40333&lt;/del&gt;&lt;/a&gt; Only clone collection options once for each shard in shardsvrShardCollection&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8a19243db63197056d6230daa92cf54a847912e4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8a19243db63197056d6230daa92cf54a847912e4&lt;/a&gt;&lt;/p&gt;</comment>
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