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    <title>MongoDB Jira</title>
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    <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-78028] Add random failures to initial syncs in initial sync concurrency suites</title>
                <link>https://jira.mongodb.org/browse/SERVER-78028</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We have several concurrency suites that initial sync nodes in the background while fsm workloads run (like &lt;a href=&quot;https://github.com/mongodb/mongo/blob/b360d141579de0534bd41ef33f3ed9d13d6711d4/buildscripts/resmokeconfig/suites/concurrency_sharded_initial_sync.yml&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;concurrency_sharded_initial_sync&lt;/a&gt;). If we injected random failures into the initial syncs that required restarting them, we could get more coverage for starting servers with partially synced data.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2366706">SERVER-78028</key>
            <summary>Add random failures to initial syncs in initial sync concurrency suites</summary>
                <type id="17000" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14713&amp;avatarType=issuetype">Engineering Test</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="1" iconUrl="https://jira.mongodb.org/images/icons/statuses/open.png" description="">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                            <label>former-quick-wins</label>
                    </labels>
                <created>Tue, 13 Jun 2023 14:14:49 +0000</created>
                <updated>Thu, 13 Jul 2023 20:43:14 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="5529098" author="jack.mulrow" created="Tue, 27 Jun 2023 19:44:44 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=vishnu.kaushik%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;vishnu.kaushik@mongodb.com&quot;&gt;vishnu.kaushik@mongodb.com&lt;/a&gt;, yeah the bug in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78000&quot; title=&quot;Config server startup should handle shardIdentity with no clusterId&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78000&quot;&gt;&lt;del&gt;SERVER-78000&lt;/del&gt;&lt;/a&gt; required the initial syncing node to restart partway through an initial sync, which c) should trigger, so your understanding sounds right to me.&lt;/p&gt;</comment>
                            <comment id="5516065" author="vishnu.kaushik" created="Wed, 21 Jun 2023 17:33:29 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jack.mulrow%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;jack.mulrow@mongodb.com&quot;&gt;jack.mulrow@mongodb.com&lt;/a&gt;, I think the suite &lt;a href=&quot;https://github.com/mongodb/mongo/blob/6b6c54f8fdb694c408933189220d6f82903ff84a/buildscripts/resmokelib/testing/hooks/continuous_initial_sync.py#L27&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;you linked already performs failovers along with initial sync&lt;/a&gt;. However, I took a look at &lt;a href=&quot;https://parsley.mongodb.com/resmoke/292c9f532d8047babc7dda18ea332a93/all?bookmarks=0,21649,21650,21652,48552,65264,69892,548564&amp;amp;filterLogic=and&amp;amp;filters=000continuousinitialsync,100j0%253As0%253Ainitsync,100replica%2520set%2520state%2520transition&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a run from one of my patch builds&lt;/a&gt;, and it looks like we make the initial sync node failover but only &lt;em&gt;after&lt;/em&gt; it has already transitioned to SECONDARY, and I guess that isn&apos;t sufficient to produce the bug you linked.&lt;/p&gt;

&lt;p&gt;I guess what we want is to have a) non-initial sync node failovers b) sync source failovers c) initial sync node failover during initial sync. Does that sound right?&lt;/p&gt;
</comment>
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            <issuekey id="2337076">SERVER-76991</issuekey>
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