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    <title>MongoDB Jira</title>
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        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-23820] &quot;Operation timed out&quot; when enableSharding on large collection in Microsoft Azure</title>
                <link>https://jira.mongodb.org/browse/SERVER-23820</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We&apos;ve set up a MongoDB 3.2.5 cluster on Microsoft Azure with 3 shards (each a replica sets with 3 servers) and a 3-server config set. We access the cluster via a router.&lt;/p&gt;

&lt;p&gt;Filling and sharding smaller collections (~400 million documents) worked with sh.shardCollection(). However, after filling a new collection with ~1.8 billion documents we tried to shard this new collection but keep getting the following error:&lt;/p&gt;
{ &quot;code&quot; : 50, &quot;ok&quot; : 0, &quot;errmsg&quot; : &quot;Operation timed out&quot; }

&lt;p&gt;Note: At first we also had timeouts with count() and chunk balancing. After decreasing the TCP keepalive on all servers in the cluster below 240 seconds (the Microsoft Azure timeout) - based on the info at &lt;a href=&quot;https://docs.mongodb.org/manual/faq/diagnostics/#does-tcp-keepalive-time-affect-mongodb-deployments&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.org/manual/faq/diagnostics/#does-tcp-keepalive-time-affect-mongodb-deployments&lt;/a&gt; - counting and balancing worked again. However, sharding our big collection still does not work.&lt;/p&gt;

&lt;p&gt;Might be connected to Issue &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22392&quot; title=&quot;&amp;quot;Operation timed out&amp;quot; when enableSharding on new cluster&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22392&quot;&gt;&lt;del&gt;SERVER-22392&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="281009">SERVER-23820</key>
            <summary>&quot;Operation timed out&quot; when enableSharding on large collection in Microsoft Azure</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="joerg.rech">J&#246;rg Rech</reporter>
                        <labels>
                    </labels>
                <created>Wed, 20 Apr 2016 07:00:38 +0000</created>
                <updated>Fri, 22 Apr 2016 20:54:34 +0000</updated>
                            <resolved>Wed, 20 Apr 2016 13:41:33 +0000</resolved>
                                    <version>3.2.5</version>
                                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1244417" author="ramon.fernandez" created="Fri, 22 Apr 2016 20:54:34 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=joerg.rech&quot; class=&quot;user-hover&quot; rel=&quot;joerg.rech&quot;&gt;joerg.rech&lt;/a&gt;, this is to let you know that a 3.2.6-rc0 release candidate has been released today. If you give it a try please let us know if it addresses your needs.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
                            <comment id="1241480" author="dan@10gen.com" created="Wed, 20 Apr 2016 17:17:04 +0000"  >&lt;p&gt;We&apos;re planning to publish a release candidate for 3.2.6 tomorrow or Friday.  If no additional issues come up, the production release should be released at the end of next week.&lt;/p&gt;</comment>
                            <comment id="1241213" author="joerg.rech" created="Wed, 20 Apr 2016 14:25:35 +0000"  >&lt;p&gt;Cool, any hope that 3.2.6 will be released in the next week? If not I can try to reload the data into a collection already sharded (which will take some days).&lt;/p&gt;</comment>
                            <comment id="1241133" author="thomas.schubert" created="Wed, 20 Apr 2016 13:41:33 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=joerg.rech&quot; class=&quot;user-hover&quot; rel=&quot;joerg.rech&quot;&gt;joerg.rech&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thank you for opening this ticket. I believe the issue you are describing is a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-23784&quot; title=&quot;Don&amp;#39;t use 30 second network timeout on commands sent to shards through the ShardRegistry&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-23784&quot;&gt;&lt;del&gt;SERVER-23784&lt;/del&gt;&lt;/a&gt;. A fix for this behavior will be included MongoDB 3.2.6 when it is released.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Thomas&lt;/p&gt;</comment>
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