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    <title>MongoDB Jira</title>
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    <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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            <title>[SERVER-6026] Primary failed - secondaries would not take over</title>
                <link>https://jira.mongodb.org/browse/SERVER-6026</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Our primary server ran out of disk space (due to us turning on verbose logging to diagnose a different problem). This then, correctly, caused the primary to step down. However, it was a single operation ahead of any of the secondaries.&lt;/p&gt;

&lt;p&gt;We then saw that none of the secondaries would take over as primary because the primary would veto (due to being ahead). And so, our set was left without a primary until we killed the mongo process on the primary (freeing up space by deleting the large log files had no affect as mongo still had a lock on the log file).&lt;/p&gt;

&lt;p&gt;In this situation it would be good if:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;the primary had carried on replicating - allowing the secondaries to catch up and take over&lt;/li&gt;
	&lt;li&gt;the primary had completely died - we can deal with the rollback issue and write safety would have meant we were ok here anyway&lt;/li&gt;
&lt;/ul&gt;

</description>
                <environment>ubuntu</environment>
        <key id="40651">SERVER-6026</key>
            <summary>Primary failed - secondaries would not take over</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="kristina">Kristina Chodorow</assignee>
                                    <reporter username="colinhowe">Colin Howe</reporter>
                        <labels>
                    </labels>
                <created>Thu, 7 Jun 2012 07:29:39 +0000</created>
                <updated>Wed, 15 Aug 2012 14:02:56 +0000</updated>
                            <resolved>Thu, 12 Jul 2012 13:54:30 +0000</resolved>
                                    <version>2.0.5</version>
                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="130309" author="kristina" created="Mon, 11 Jun 2012 14:41:02 +0000"  >&lt;p&gt;We actually have tests that make sure this work (step down the primary, make sure the secondaries catch up and become primary).  If you do come across it again, please send along the logs.&lt;/p&gt;</comment>
                            <comment id="129230" author="colinhowe" created="Sat, 9 Jun 2012 08:32:09 +0000"  >&lt;p&gt;Unfortunately we don&apos;t have the logs - we deleted them as the quickest way to get the server back up and running. I imagine it wouldn&apos;t be too hard to replicate though&lt;/p&gt;</comment>
                            <comment id="128752" author="kristina" created="Fri, 8 Jun 2012 16:13:50 +0000"  >&lt;p&gt;Never mind on version #, see now this is 2.0.5.&lt;/p&gt;</comment>
                            <comment id="128750" author="kristina" created="Fri, 8 Jun 2012 16:12:39 +0000"  >&lt;p&gt;The secondaries should continue replicating from the primary. Do you have the logs from the secondaries/primary?  What version was this?&lt;/p&gt;</comment>
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