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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-36427] Sharding cluster unable to sync and mongodump fails.</title>
                <link>https://jira.mongodb.org/browse/SERVER-36427</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I have a 13 server mongodb cluster consisting of 1 query router, 3 config servers with replication and 3 shards, each with replication(primary, secondary and arbiter). Its installed on AWS-EC2 R series instances. Monit is used to restart the mongodb service incase it exceeds 95% memory usage.&lt;/p&gt;

&lt;p&gt;My Shard3Primary failed and the Shard3Secondary became primary(as expected). The problem is that the Shard3Primary mongodb process isnt able to restart stating&#160;&lt;/p&gt;
&lt;blockquote&gt;&lt;p&gt;Initializing full-time diagnostic data capture with directory &apos;/data_storage/data/diagnostic.data&apos;&lt;br/&gt;
2018-08-03T03:59:12.144+0000 I REPL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Rollback ID is 210&lt;br/&gt;
2018-08-03T03:59:12.145+0000 I REPL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Starting recovery oplog application at the appliedThrough: { ts: Timestamp(1533190391, 15335), t: 454 }&lt;br/&gt;
2018-08-03T03:59:12.145+0000 I REPL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Replaying stored operations from { : Timestamp(1533190391, 15335) } (exclusive) to { : Timestamp(1533190418, 1) } (inclusive).&lt;br/&gt;
2018-08-03T03:59:12.145+0000 F REPL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Oplog entry at { : Timestamp(1533190391, 15335) } is missing; actual entry found is { : Timestamp(1533190393, 1) }&lt;br/&gt;
2018-08-03T03:59:12.145+0000 F - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Fatal Assertion 40292 at src/mongo/db/repl/replication_recovery.cpp 218&lt;br/&gt;
2018-08-03T03:59:12.145+0000 F - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;***aborting after fassert() failure&lt;/p&gt;&lt;/blockquote&gt;
&lt;p&gt;I tried to take the mongodump on the QueryRouter and it failed too.(the same command had succeeded for earlier dumps).&#160;&#160;&lt;/p&gt;

&lt;p&gt;I have attached the screenshots of Shard3Primary for your reference.&lt;/p&gt;</description>
                <environment></environment>
        <key id="581677">SERVER-36427</key>
            <summary>Sharding cluster unable to sync and mongodump fails.</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="nick.brewer">Nick Brewer</assignee>
                                    <reporter username="prasadsurase">Prasad Surase</reporter>
                        <labels>
                    </labels>
                <created>Fri, 3 Aug 2018 04:26:07 +0000</created>
                <updated>Sat, 15 Sep 2018 14:48:56 +0000</updated>
                            <resolved>Tue, 21 Aug 2018 21:28:20 +0000</resolved>
                                                                    <component>Replication</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1981867" author="nick.brewer" created="Tue, 21 Aug 2018 21:28:11 +0000"  >&lt;p&gt;The fix for this behavior has been released in MongoDB 3.6.7.&lt;/p&gt;

&lt;p&gt;-Nick&lt;/p&gt;</comment>
                            <comment id="1965459" author="nick.brewer" created="Fri, 3 Aug 2018 16:01:21 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=prasadsurase&quot; class=&quot;user-hover&quot; rel=&quot;prasadsurase&quot;&gt;prasadsurase&lt;/a&gt; I believe you&apos;re running into a known issue that is detailed here: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-34895&quot; title=&quot;Stable timestamp can be set to timestamp not in oplog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-34895&quot;&gt;&lt;del&gt;SERVER-34895&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;A fix to prevent this behavior is in MongoDB 4.0, but it hasn&apos;t been backported to 3.6 yet. In the meantime, you&apos;ll need to perform an &lt;a href=&quot;https://docs.mongodb.com/manual/tutorial/resync-replica-set-member/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;initial sync&lt;/a&gt; to restore the primary. &lt;/p&gt;

&lt;p&gt;I&apos;ll update this ticket once the fix is introduced in 3.6.&lt;/p&gt;

&lt;p&gt;-Nick&lt;/p&gt;</comment>
                    </comments>
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                            <attachment id="193283" name="1.png" size="365471" author="prasadsurase" created="Fri, 3 Aug 2018 04:25:15 +0000"/>
                            <attachment id="193282" name="2.png" size="371394" author="prasadsurase" created="Fri, 3 Aug 2018 04:25:15 +0000"/>
                            <attachment id="193281" name="3.png" size="355723" author="prasadsurase" created="Fri, 3 Aug 2018 04:25:15 +0000"/>
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