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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-3316] Syncing a new replica in a replica set crashes the primary and leaves secondary in strange state</title>
                <link>https://jira.mongodb.org/browse/SERVER-3316</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Our set up is as follows:&lt;/p&gt;

&lt;p&gt;2 shards consisting of 3 machines each (1 primary, 1 secondary, 1 arbiter). Each shard has about 35GB of data, running on 1.8.1.&lt;/p&gt;

&lt;p&gt;We lost a secondary today, so are trying to resync a new secondary from scratch. Two things have happened at least twice in this process:&lt;/p&gt;

&lt;p&gt;1. The primary segfaults; we had this happen while secondary was mid-sync, but also happen when the secondary was shut down and not communicating with the primary at all (three times).&lt;br/&gt;
2. The secondary, once it&apos;s finished syncing and building its indexes, complains over and over about &quot;DR102 too much data written uncommitted&quot; (same error as &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-2737&quot; title=&quot;Large rollback fails (DR102 too much data written uncommitted) (after &amp;quot;rollback 6&amp;quot;)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-2737&quot;&gt;&lt;del&gt;SERVER-2737&lt;/del&gt;&lt;/a&gt; but different situation as far as I can tell).&lt;/p&gt;

&lt;p&gt;We&apos;ve tried stopping all the mongods, removing the local files on the primary, starting it up and re-initializing its replica set, and then syncing again, but this led to the same results (we cleared all data off the secondary first, too).&lt;/p&gt;

&lt;p&gt;I&apos;ve attached the logs for both seg faults (one was running with verbose=false, the other =true) and a sample of the DR102 errors on the secondary.&lt;/p&gt;</description>
                <environment>Ubuntu Natty on EC2</environment>
        <key id="18595">SERVER-3316</key>
            <summary>Syncing a new replica in a replica set crashes the primary and leaves secondary in strange state</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="scotthernandez">Scott Hernandez</assignee>
                                    <reporter username="mikeyk">Mike K</reporter>
                        <labels>
                    </labels>
                <created>Thu, 23 Jun 2011 07:40:58 +0000</created>
                <updated>Tue, 12 Jul 2016 00:18:19 +0000</updated>
                            <resolved>Fri, 24 Jun 2011 12:32:39 +0000</resolved>
                                    <version>1.8.1</version>
                                                    <component>Replication</component>
                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="39035" author="mikeyk" created="Fri, 24 Jun 2011 07:59:27 +0000"  >&lt;p&gt;Can confirm that 1.8.2 fixed the DR102 issue; the segfaults we saw on primary may be related to some EC2 issues, issue can probably be closed for now and we&apos;ll keep an eye out.&lt;/p&gt;
</comment>
                            <comment id="38867" author="scotthernandez" created="Thu, 23 Jun 2011 12:15:27 +0000"  >&lt;p&gt;Please upgrade to 1.8.2; it has fixes for many causes to the DR102 error, as well as other fixes.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="12111" name="segfault.txt" size="703" author="mikeyk" created="Thu, 23 Jun 2011 07:40:58 +0000"/>
                            <attachment id="12112" name="uncommitted.txt" size="7361" author="mikeyk" created="Thu, 23 Jun 2011 07:40:58 +0000"/>
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