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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-3652] Sometimes got &quot;invalid chunk config minObj&quot; or &quot;Assertion: 8070:couldn&apos;t find a chunk aftry retry which should be impossible extracted&quot; when there&apos;re multiple mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-3652</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I am using a sharding environment(replicaset) with multiple mongos. Sometimes when I perform query or findAndModify a collection with shardkey, there&apos;s only ONE mongos worked well, while the others will complains as below. The only way is to restart all the other mongos to fix it. However it may happen again.&lt;/p&gt;

&lt;p&gt;Query:&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 Fri: Aug 19 07:09:55 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn60192&amp;#93;&lt;/span&gt; Assertion: 13507:invalid chunk config minObj: &lt;/p&gt;
{ id: &quot;newbie&quot; }
&lt;p&gt;Aug 19 07:09:56 dal-tsa04 0x5204fa: 0x618f45 0x63a673 0x66841c 0x67d187 0x580b7c 0x6a50a0 0x35baa0673d 0x35b9ed3f6d&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo11msgassertedEiPKc+0x12a): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x5204fa&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo12ChunkManager17getShardsForQueryERSt3setINS_5ShardESt4lessIS2_ESaIS2_EERKNS_7BSONObjE+0x8c5): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x618f45&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo13ShardStrategy7queryOpERNS_7RequestE+0x2f3): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x63a673&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo7Request7processEi+0x29c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x66841c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo21ShardedMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0x77): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x67d187&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(_ZN5mongo3pms9threadRunEPNS_13MessagingPortE+0x34c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x580b7c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /usr/bin/mongos(thread_proxy+0x80): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x6a50a0&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /lib64/libpthread.so.0: &lt;span class=&quot;error&quot;&gt;&amp;#91;0x35baa0673d&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 /lib64/libc.so.6(clone+0x6d): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x35b9ed3f6d&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:09:56 dal-tsa04 Fri: Aug 19 07:09:55 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn60192&amp;#93;&lt;/span&gt; AssertionException in process: invalid chunk config minObj: &lt;/p&gt;
{ id: &quot;newbie&quot; }

&lt;p&gt;FindAndModify:&lt;/p&gt;

&lt;p&gt;Aug 19 07:10:00 dal-tsa04 Fri: Aug 19 07:10:00 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn60177&amp;#93;&lt;/span&gt; Assertion: 8070:couldn&apos;t find a chunk aftry retry which should be impossible extracted: &lt;/p&gt;
{ id: &quot;david&quot; }
&lt;p&gt;Aug 19 07:10:00 dal-tsa04 0x5204fa: 0x60adfd 0x65663c 0x57df0c 0x635f52 0x66841c 0x67d187 0x580b7c 0x6a50a0 0x35baa0673d 0x35b9ed3f6d&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo11msgassertedEiPKc+0x12a): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x5204fa&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo12ChunkManager9findChunkERKNS_7BSONObjE+0x49d): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x60adfd&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo15dbgrid_pub_cmds16FindAndModifyCmd3runERKSsRNS_7BSONObjERSsRNS_14BSONObjBuilderEb+0x37c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x65663c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo7Command20runAgainstRegisteredEPKcRNS_7BSONObjERNS_14BSONObjBuilderE+0x67c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x57df0c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo14SingleStrategy7queryOpERNS_7RequestE+0x262): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x635f52&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo7Request7processEi+0x29c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x66841c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo21ShardedMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0x77): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x67d187&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(_ZN5mongo3pms9threadRunEPNS_13MessagingPortE+0x34c): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x580b7c&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /usr/bin/mongos(thread_proxy+0x80): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x6a50a0&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /lib64/libpthread.so.0: &lt;span class=&quot;error&quot;&gt;&amp;#91;0x35baa0673d&amp;#93;&lt;/span&gt;&lt;br/&gt;
Aug 19 07:10:00 dal-tsa04 /lib64/libc.so.6(clone+0x6d): &lt;span class=&quot;error&quot;&gt;&amp;#91;0x35b9ed3f6d&amp;#93;&lt;/span&gt;&lt;/p&gt;</description>
                <environment>Centos 5 64bit</environment>
        <key id="21205">SERVER-3652</key>
            <summary>Sometimes got &quot;invalid chunk config minObj&quot; or &quot;Assertion: 8070:couldn&apos;t find a chunk aftry retry which should be impossible extracted&quot; when there&apos;re multiple mongos</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="scotthernandez">Scott Hernandez</assignee>
                                    <reporter username="edwardwei">Edward Wei</reporter>
                        <labels>
                            <label>mongos</label>
                    </labels>
                <created>Fri, 19 Aug 2011 10:38:55 +0000</created>
                <updated>Tue, 11 Dec 2018 16:15:31 +0000</updated>
                            <resolved>Wed, 2 Nov 2011 04:56:22 +0000</resolved>
                                    <version>1.8.2</version>
                                                    <component>Querying</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="63943" author="edwardwei" created="Tue, 1 Nov 2011 13:28:02 +0000"  >&lt;p&gt;@Ian, I&apos;ve not seen these kind of errors again, maybe I had connection issue at that time. I would suggest close this case first, thank you for help.&lt;/p&gt;</comment>
                            <comment id="63801" author="ian@10gen.com" created="Mon, 31 Oct 2011 20:07:18 +0000"  >&lt;p&gt;@edward, have you seen the same errors again?  If so it would be useful if you could attach the logs.&lt;/p&gt;</comment>
                            <comment id="50070" author="edwardwei" created="Tue, 23 Aug 2011 03:32:24 +0000"  >&lt;p&gt;@Scott,&lt;br/&gt;
I am sure that all the config server is running. I&apos;ve set the mongos in verbose mode, I&apos;ll attach the logs if the same errors are reproduced.&lt;/p&gt;</comment>
                            <comment id="49463" author="scotthernandez" created="Fri, 19 Aug 2011 13:05:41 +0000"  >&lt;p&gt;Are all your config servers up and running? Please attach more of the mongos logs before the errors. If you can enable more verbose logging that would help as well.&lt;/p&gt;</comment>
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