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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-38041] Test single shard transactions with arbiters and enableMajorityReadConcern:false replica sets with lag </title>
                <link>https://jira.mongodb.org/browse/SERVER-38041</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Transactions that touch a single shard that contains an arbiter or contains a node with &lt;tt&gt;enableMajorityReadConcern:false&lt;/tt&gt; will be allowed in 4.2. We should test that:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;A single shard transaction can succeed against a replica set that contains an arbiter.&lt;/li&gt;
	&lt;li&gt;A single shard transaction can succeed against a replica set whose primary has enableMajorityReadConcern:false and whose secondary is lagged. We should test this to make sure that the transaction is selecting a read timestamp based on lastApplied, as opposed to starting at the majority commit point. If it started at the majority commit point, we would not be able to obtain a snapshot, since we won&apos;t keep history back that far.&lt;/li&gt;
&lt;/ol&gt;
</description>
                <environment></environment>
        <key id="631519">SERVER-38041</key>
            <summary>Test single shard transactions with arbiters and enableMajorityReadConcern:false replica sets with lag </summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="vesselina.ratcheva@mongodb.com">Vesselina Ratcheva</assignee>
                                    <reporter username="william.schultz@mongodb.com">William Schultz</reporter>
                        <labels>
                    </labels>
                <created>Thu, 8 Nov 2018 22:45:01 +0000</created>
                <updated>Sun, 29 Oct 2023 22:26:42 +0000</updated>
                            <resolved>Mon, 14 Jan 2019 21:30:46 +0000</resolved>
                                                    <fixVersion>4.1.7</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2114821" author="xgen-internal-githook" created="Mon, 14 Jan 2019 21:30:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;vessy-mongodb&apos;, &apos;email&apos;: &apos;vesselina.ratcheva@10gen.com&apos;, &apos;name&apos;: &apos;Vesselina Ratcheva&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38041&quot; title=&quot;Test single shard transactions with arbiters and enableMajorityReadConcern:false replica sets with lag &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38041&quot;&gt;&lt;del&gt;SERVER-38041&lt;/del&gt;&lt;/a&gt; Test single shard transactions with arbiters and enableMajorityReadConcern:false replica sets with lag&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b1e8aca52cef1c2a09ac3d06ffba95f528c0e766&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b1e8aca52cef1c2a09ac3d06ffba95f528c0e766&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2087137" author="william.schultz" created="Tue, 11 Dec 2018 16:38:16 +0000"  >&lt;p&gt;To clarify the intent of this ticket, sharded transactions against EMRC=false replica sets will mostly be covered by the passthrough coverage being added in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37343&quot; title=&quot;Enable single shard transactions tests on &amp;quot;majority read concern off&amp;quot; variant&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37343&quot;&gt;&lt;del&gt;SERVER-37343&lt;/del&gt;&lt;/a&gt;, but we want to add a targeted test case from transactions against an EMRC=false replica set with some lag.&lt;/p&gt;</comment>
                            <comment id="2062241" author="tess.avitabile" created="Wed, 14 Nov 2018 20:02:26 +0000"  >&lt;p&gt;This depends on&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37897&quot; title=&quot;Disable table logging for data files when enableMajorityReadConcern=false&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37897&quot;&gt;&lt;del&gt;SERVER-37897&lt;/del&gt;&lt;/a&gt;, which will ensure that the storage engine respects&#160;maxTargetSnapshotHistoryWindowInSeconds when enableMajorityReadConcern=false.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
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                                        <issuelink>
            <issuekey id="628232">SERVER-37897</issuekey>
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                            <issuelinktype id="10012">
                    <name>Related</name>
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            <issuekey id="616696">SERVER-37549</issuekey>
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