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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-3133] mongos crash on replicaset failover</title>
                <link>https://jira.mongodb.org/browse/SERVER-3133</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;we are running a sharded setup with 2 shards and each shard is represented by a replicaset of 2 replicas and 1 arbiter. on the primary for 1 shard, we issued the rs.stepDown() command so that we could perform maintenance on the box. for 5s+, both replicas in the set reported as secondary nodes. subsequently, the mongos processed crashed with the following trace:&lt;/p&gt;

&lt;p&gt;Received signal 6&lt;br/&gt;
Backtrace: 0x52e235 0x7f7d51221af0 0x7f7d51221a75 0x7f7d512255c0 0x7f7d5121a941 0x5517c3 0x552208 0x54a10c 0x53fcca 0x577eae 0x5789dc 0x69dae1 0x69ec38 0x7f7d51d259ca 0x7f7d512d470d &lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17printStackAndExitEi+0x75)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x52e235&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(+0x33af0)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d51221af0&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(gsignal+0x35)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d51221a75&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(abort+0x180)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d512255c0&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(__assert_fail+0xf1)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d5121a941&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo18DBClientReplicaSet11checkMasterEv+0x4b3)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5517c3&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo18DBClientReplicaSet7findOneERKSsRKNS_5QueryEPKNS_7BSONObjEi+0x128)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x552208&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo20DBClientWithCommands10runCommandERKSsRKNS_7BSONObjERS3_i+0x8c)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x54a10c&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(&lt;em&gt;ZN5mongo20DBClientWithCommands13simpleCommandERKSsPNS_7BSONObjES2&lt;/em&gt;+0x12a)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x53fcca&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17ClientConnections7releaseERKSsPNS_12DBClientBaseE+0x10e)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x577eae&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5boost19thread_specific_ptrIN5mongo17ClientConnectionsEE11delete_dataclEPv+0xac)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5789dc&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(tls_destructor+0xb1)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x69dae1&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(thread_proxy+0x88)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x69ec38&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libpthread.so.0(+0x69ca)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d51d259ca&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(clone+0x6d)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d512d470d&amp;#93;&lt;/span&gt;&lt;br/&gt;
===&lt;br/&gt;
Received signal 11&lt;br/&gt;
Backtrace: 0x52e235 0x7f7d51221af0 0x5394ba 0x5595a5 0x53ae5a 0x54af51 0x546afc 0x54a10c 0x53bfd5 0x54fd78 0x5507fd 0x5510a2 0x55134d 0x552208 0x54a10c 0x53fcca 0x577eae 0x5789dc 0x69f3c1 0x573b22 &lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17printStackAndExitEi+0x75)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x52e235&amp;#93;&lt;/span&gt;&lt;br/&gt;
/lib/libc.so.6(+0x33af0)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f7d51221af0&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo15assembleRequestERKSsNS_7BSONObjEiiPKS2_iRNS_7MessageE+0xea)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5394ba&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo14DBClientCursor4initEv+0x105)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5595a5&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo12DBClientBase5queryERKSsNS_5QueryEiiPKNS_7BSONObjEii+0x32a)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x53ae5a&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo18DBClientConnection5queryERKSsNS_5QueryEiiPKNS_7BSONObjEii+0xa1)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x54af51&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17DBClientInterface7findOneERKSsRKNS_5QueryEPKNS_7BSONObjEi+0x7c)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x546afc&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo20DBClientWithCommands10runCommandERKSsRKNS_7BSONObjERS3_i+0x8c)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x54a10c&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo20DBClientWithCommands8isMasterERbPNS_7BSONObjE+0x75)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x53bfd5&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17ReplicaSetMonitor16_checkConnectionEPNS_18DBClientConnectionERSsb+0x88)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x54fd78&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17ReplicaSetMonitor6_checkEv+0x14d)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5507fd&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17ReplicaSetMonitor9getMasterEv+0x72)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5510a2&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo18DBClientReplicaSet11checkMasterEv+0x3d)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x55134d&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo18DBClientReplicaSet7findOneERKSsRKNS_5QueryEPKNS_7BSONObjEi+0x128)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x552208&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo20DBClientWithCommands10runCommandERKSsRKNS_7BSONObjERS3_i+0x8c)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x54a10c&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(&lt;em&gt;ZN5mongo20DBClientWithCommands13simpleCommandERKSsPNS_7BSONObjES2&lt;/em&gt;+0x12a)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x53fcca&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5mongo17ClientConnections7releaseERKSsPNS_12DBClientBaseE+0x10e)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x577eae&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5boost19thread_specific_ptrIN5mongo17ClientConnectionsEE11delete_dataclEPv+0xac)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x5789dc&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos(_ZN5boost6detail12set_tss_dataEPKvNS_10shared_ptrINS0_20tss_cleanup_functionEEEPvb+0x151)&lt;span class=&quot;error&quot;&gt;&amp;#91;0x69f3c1&amp;#93;&lt;/span&gt;&lt;br/&gt;
/usr/bin/mongos&lt;span class=&quot;error&quot;&gt;&amp;#91;0x573b22&amp;#93;&lt;/span&gt;&lt;br/&gt;
===&lt;/p&gt;</description>
                <environment></environment>
        <key id="17428">SERVER-3133</key>
            <summary>mongos crash on replicaset failover</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="9">Done</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="wayne530">Y. Wayne Huang</reporter>
                        <labels>
                            <label>mongos</label>
                    </labels>
                <created>Mon, 23 May 2011 23:07:31 +0000</created>
                <updated>Tue, 12 Jul 2016 00:18:30 +0000</updated>
                            <resolved>Sat, 28 May 2011 01:31:37 +0000</resolved>
                                    <version>1.8.1</version>
                                    <fixVersion>1.8.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
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