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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-2842] Various errors seen when one node dies in a shard.</title>
                <link>https://jira.mongodb.org/browse/SERVER-2842</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Repro:&lt;/p&gt;

&lt;p&gt;1. Set up two shards, each with one primary, one secondary, and one arbiter.&lt;br/&gt;
2. Enable sharding on a database.&lt;br/&gt;
3. Shard a collection in the database.&lt;br/&gt;
4. Insert enough documents to distribute them between the shards.&lt;br/&gt;
5. Run a test that constantly runs various queries against the collection.&lt;br/&gt;
6. While running the test kill a random mongod then restart it.&lt;/p&gt;

&lt;p&gt;After killing the mongod you may or may not see errors like this:&lt;/p&gt;

&lt;p&gt;database error: DBClientBase::findOne: transport error: ...&lt;br/&gt;
database error: socket exception&lt;br/&gt;
database error: dbclient error communicating with server: ...&lt;/p&gt;

&lt;p&gt;These errors are passed back to the client application by mongos. Is this the expected behavior?&lt;/p&gt;

&lt;p&gt;This was found while trying to reproduce &lt;a href=&quot;https://jira.mongodb.org/browse/PYTHON-212&quot; title=&quot;pymongo does not recover after  stale config&quot; class=&quot;issue-link&quot; data-issue-key=&quot;PYTHON-212&quot;&gt;&lt;del&gt;PYTHON-212&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</description>
                <environment>Linux x86_64</environment>
        <key id="15303">SERVER-2842</key>
            <summary>Various errors seen when one node dies in a shard.</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="-1">Unassigned</assignee>
                                    <reporter username="bernie@mongodb.com">Bernie Hackett</reporter>
                        <labels>
                    </labels>
                <created>Sat, 26 Mar 2011 05:11:46 +0000</created>
                <updated>Fri, 8 Mar 2013 15:55:53 +0000</updated>
                            <resolved>Tue, 18 Sep 2012 04:47:50 +0000</resolved>
                                    <version>1.8.0</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="26904" author="behackett" created="Sat, 26 Mar 2011 05:48:57 +0000"  >&lt;p&gt;One more: database error: not master and slaveok=false&lt;/p&gt;</comment>
                            <comment id="26903" author="behackett" created="Sat, 26 Mar 2011 05:34:59 +0000"  >&lt;p&gt;Another error (as reported by pymongo): db assertion failure, assertion: &apos;setShardVersion failed! &lt;/p&gt;
{ &quot;errmsg&quot; : &quot;not master&quot;, &quot;ok&quot; : 0 }
&lt;p&gt;&apos;, assertionCode: 10429&lt;/p&gt;</comment>
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