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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-57177] Create collection coordinator refreshes cached database info only if necessary</title>
                <link>https://jira.mongodb.org/browse/SERVER-57177</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In the create collection coordinator we perform &lt;a href=&quot;https://github.com/mongodb/mongo/blob/1a6e08a61c138e7da0500c11de78d3489b7024d4/src/mongo/db/s/create_collection_coordinator.cpp#L524&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;an unconditional refresh of the cached database entry&lt;/a&gt;, to check i&lt;a href=&quot;https://github.com/mongodb/mongo/blob/1a6e08a61c138e7da0500c11de78d3489b7024d4/src/mongo/db/s/create_collection_coordinator.cpp#L528&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;f the database has been enabled for sharding&lt;/a&gt;. Since changing the &quot;shardingEnabled&quot; flag doesn&apos;t imply a database version change we can&apos;t rely on the versioning protocol to propagate this changes to the DSS.&lt;br/&gt;
Since the flag can only be changed to true but never set back to false afterwards, if the locally chached database entry already has the flag set to true, we can skip the forced refresh.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1755922">SERVER-57177</key>
            <summary>Create collection coordinator refreshes cached database info only if necessary</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="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                            <label>PM-1965-Cleanup</label>
                    </labels>
                <created>Tue, 25 May 2021 09:51:36 +0000</created>
                <updated>Sun, 29 Oct 2023 21:53:07 +0000</updated>
                            <resolved>Tue, 25 May 2021 12:03:19 +0000</resolved>
                                    <version>5.0.0</version>
                                    <fixVersion>5.0.0-rc1</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="4108332" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 19:04:04 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3840584" author="xgen-internal-githook" created="Wed, 26 May 2021 08:03:31 +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-57177&quot; title=&quot;Create collection coordinator refreshes cached database info only if necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57177&quot;&gt;&lt;del&gt;SERVER-57177&lt;/del&gt;&lt;/a&gt; Create collection coordinator refreshes cached database info only if necessary&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a2241a3126a98222893b9d2a2f7702242f7d3cec)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1d45e5dd7cfb460df05fa13f34175f9e26163f26&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1d45e5dd7cfb460df05fa13f34175f9e26163f26&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3836354" author="xgen-internal-githook" created="Tue, 25 May 2021 12:02:16 +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-57177&quot; title=&quot;Create collection coordinator refreshes cached database info only if necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57177&quot;&gt;&lt;del&gt;SERVER-57177&lt;/del&gt;&lt;/a&gt; Create collection coordinator refreshes cached database info only if necessary&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a2241a3126a98222893b9d2a2f7702242f7d3cec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a2241a3126a98222893b9d2a2f7702242f7d3cec&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3835528" author="tommaso.tocci" created="Tue, 25 May 2021 09:54:49 +0000"  >&lt;p&gt;Code review: &lt;a href=&quot;http://mongodbcr.appspot.com/783660010&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://mongodbcr.appspot.com/783660010&lt;/a&gt;&lt;/p&gt;</comment>
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