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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-54052] Call to setFeatureCompatibilityVersion sometimes hangs when upgrading from 4.2 to 4.4 on sharded cluster</title>
                <link>https://jira.mongodb.org/browse/SERVER-54052</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I&apos;ve noticed that after upgrading a 4.2 sharded cluster to 4.4, the call to setFeatureCompatibilityVersion sometimes hangs. I&apos;ve set a 10 minute timeout on the command and it is reached quite often.&lt;/p&gt;

&lt;p&gt;I can&apos;t reproduce this problem all the time. It will usually take about 10s for the command to run normally. I&apos;ve had cases where it reaches the 10 minutes timeout and other cases where it takes much longer than 10s but still completes within the 10 minute timeout. The logs for mongos don&apos;t seem to indicate any problem.&lt;/p&gt;

&lt;p&gt;I&apos;m using the latest versions of 4.2 and 4.4.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1600727">SERVER-54052</key>
            <summary>Call to setFeatureCompatibilityVersion sometimes hangs when upgrading from 4.2 to 4.4 on sharded cluster</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="4">Incomplete</resolution>
                                        <assignee username="dmitry.agranat@mongodb.com">Dmitry Agranat</assignee>
                                    <reporter username="simon.bernier-st-pierre@ubisoft.com">Simon Bernier St-Pierre</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Jan 2021 15:24:46 +0000</created>
                <updated>Thu, 11 Feb 2021 09:43:33 +0000</updated>
                            <resolved>Thu, 11 Feb 2021 09:43:33 +0000</resolved>
                                                                    <component>Upgrade/Downgrade</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="3611121" author="dmitry.agranat" created="Thu, 11 Feb 2021 09:43:19 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=simon.bernier-st-pierre%40ubisoft.com&quot; class=&quot;user-hover&quot; rel=&quot;simon.bernier-st-pierre@ubisoft.com&quot;&gt;simon.bernier-st-pierre@ubisoft.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;We haven&#8217;t heard back from you for some time, so I&#8217;m going to close this ticket. If this is still an issue for you, please provide additional information and we will reopen the ticket.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3586743" author="dmitry.agranat" created="Thu, 28 Jan 2021 09:56:42 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=simon.bernier-st-pierre%40ubisoft.com&quot; class=&quot;user-hover&quot; rel=&quot;simon.bernier-st-pierre@ubisoft.com&quot;&gt;simon.bernier-st-pierre@ubisoft.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Would you please archive (tar or zip) the mongod.log files covering the incident and the &lt;tt&gt;$dbpath/diagnostic.data&lt;/tt&gt; directory (the contents are described &lt;a href=&quot;https://docs.mongodb.com/manual/administration/analyzing-mongodb-performance/#full-time-diagnostic-data-capture&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;) from the mongoS the command was issued as well as from all members of the primary shard and upload them to this &lt;a href=&quot;https://10gen-httpsupload.s3.amazonaws.com/upload_forms/3776dd43-1de7-4659-83cc-53f82f51116a.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;support uploader&lt;/a&gt; location?&lt;/p&gt;

&lt;p&gt;Files uploaded to this portal are visible only to MongoDB employees and are routinely deleted after some time.&lt;/p&gt;

&lt;p&gt;Also, how many shards and chunks do you have in your cluster?&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Dima&lt;/p&gt;

</comment>
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