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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-2777] moveChunk failed, socket exception</title>
                <link>https://jira.mongodb.org/browse/SERVER-2777</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I run a move chunk operation with this command options:&lt;br/&gt;
{:moveChunk=&amp;gt;&quot;localytics_production.events&quot;,&lt;br/&gt;
 :find=&amp;gt;&lt;/p&gt;
{&quot;_id&quot;=&amp;gt;&amp;lt;BSON::Binary:-610712958&amp;gt;}
&lt;p&gt;,&lt;br/&gt;
 :to=&amp;gt;&quot;localyticsProdShard3&quot;}&lt;/p&gt;

&lt;p&gt;And I occasionally get an error like this:&lt;/p&gt;

&lt;p&gt;/usr/lib/ruby/gems/1.8/gems/mongo-1.2.4/lib/../lib/mongo/db.rb:501:in `command&apos;: Database command &apos;moveChunk&apos; failed: {&quot;ok&quot;=&amp;gt;0.0, &quot;errmsg&quot;=&amp;gt;&quot;_recvChunkStatus error { cause: { active: false, ns: \&quot;localytics_production.events\&quot;, from: \&quot;localyticsProdShard1/ip-10-127-86-88.ec2.internal:27017,ip-10-126-165-...\&quot;, min: &lt;/p&gt;
{ _id: BinData }
&lt;p&gt;, max: &lt;/p&gt;
{ _id: BinData }
&lt;p&gt;, state: \&quot;fail\&quot;, errmsg: \&quot;socket exception\&quot;, counts: &lt;/p&gt;
{ cloned: 0, catchup: 0, steady: 0 }
&lt;p&gt;, ok: 1.0 }, errmsg: \&quot;_recvChunkStatus error\&quot;, ok: 0.0 }&quot;} (Mongo::OperationFailure)&lt;/p&gt;

&lt;p&gt;Any idea what this is all about and how I can go about diagnosing it?&lt;/p&gt;

&lt;p&gt;One piece of information that might be helpful, I already started another moveChunk command, but it&apos;s for a different collection with a chunk on different from and to shards.&lt;/p&gt;</description>
                <environment>Ubuntu 10.04</environment>
        <key id="15143">SERVER-2777</key>
            <summary>moveChunk failed, socket exception</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="5">Cannot Reproduce</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="charso">charso</reporter>
                        <labels>
                    </labels>
                <created>Thu, 17 Mar 2011 06:51:49 +0000</created>
                <updated>Fri, 30 Mar 2012 14:37:17 +0000</updated>
                            <resolved>Thu, 17 Mar 2011 07:04:47 +0000</resolved>
                                    <version>1.6.5</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="26079" author="charso" created="Thu, 17 Mar 2011 12:58:27 +0000"  >&lt;p&gt;Thanks Eliot.&lt;/p&gt;</comment>
                            <comment id="26070" author="eliot" created="Thu, 17 Mar 2011 07:04:47 +0000"  >&lt;p&gt;Please let us know if get any more info.&lt;br/&gt;
Given just that, it seems like a pure networking issue.&lt;br/&gt;
Mongo should recover just fine though and this shouldn&apos;t cause any issue on the cluster.&lt;/p&gt;</comment>
                            <comment id="26069" author="charso" created="Thu, 17 Mar 2011 07:01:16 +0000"  >&lt;p&gt;I didn&apos;t shut anything down, but I am on EC2 and network connection drops aren&apos;t unheard of. I can&apos;t nail down exactly what the circumstances are when I see it. At least I know what to look for now.&lt;/p&gt;</comment>
                            <comment id="26065" author="eliot" created="Thu, 17 Mar 2011 06:55:25 +0000"  >&lt;p&gt;That means a socket was closed between the 2 shards.&lt;br/&gt;
So could be:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;mongod shutdown or crash&lt;/li&gt;
	&lt;li&gt;server shutdown or crash&lt;/li&gt;
	&lt;li&gt;network flapping&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Can you check for all of those?&lt;/p&gt;</comment>
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