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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-58357] [ephemeralForTest] TemporaryKVRecordStore fails to register commit handler in WCE loop</title>
                <link>https://jira.mongodb.org/browse/SERVER-58357</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57231&quot; title=&quot;[ephemeralForTest] index build cleanup fails with invariant if WUOW throws WCE at commit time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57231&quot;&gt;&lt;del&gt;SERVER-57231&lt;/del&gt;&lt;/a&gt;, we updated the finalization logic in&#160;TemporaryKVRecordStore so that the finalization flag is updated in a commit handler when we are running within a WriteConflictException retry loop with an active WriteUnitOfWork.&lt;/p&gt;

&lt;p&gt;However, the RecoveryUnit in a ephemeralForTest storage engine never returns true for the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/20fabcca5d9c29f4eef0ab026b50c24a038c63f1/src/mongo/db/storage/recovery_unit.h#L484&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;RecoveryUnit::isActive()&lt;/a&gt;&#160;function. The implementation transitions the internal state to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/20fabcca5d9c29f4eef0ab026b50c24a038c63f1/src/mongo/db/storage/ephemeral_for_test/ephemeral_for_test_recovery_unit.cpp#L53&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;kInactiveInUnitOfWork&lt;/a&gt; but never makes to &lt;tt&gt;Active&lt;/tt&gt;. Most of the server code that queries the active state only cares about !isActive() so this is generally not an issue for test deployments using the ephemeralForTest storage engine.&lt;/p&gt;

&lt;p&gt;The impact of this defect is limited to server instances running the non-production ephemeralForTest storage engine.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1811381">SERVER-58357</key>
            <summary>[ephemeralForTest] TemporaryKVRecordStore fails to register commit handler in WCE loop</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="13201">Fixed</resolution>
                                        <assignee username="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                            <label>EFT</label>
                    </labels>
                <created>Wed, 7 Jul 2021 21:55:47 +0000</created>
                <updated>Sun, 29 Oct 2023 21:51:11 +0000</updated>
                            <resolved>Thu, 15 Jul 2021 19:36:24 +0000</resolved>
                                                    <fixVersion>5.0.2</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4107020" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:15:15 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3958429" author="xgen-internal-githook" created="Thu, 22 Jul 2021 19:20:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58357&quot; title=&quot;[ephemeralForTest] TemporaryKVRecordStore fails to register commit handler in WCE loop&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58357&quot;&gt;&lt;del&gt;SERVER-58357&lt;/del&gt;&lt;/a&gt; transition EFT RecoveryUnit state to active when there are pending modifications&lt;/p&gt;

&lt;p&gt;Previously, we would leave the EFT RecoveryUnit in an inactive-but-in-UOW state which&lt;br/&gt;
still allows us to commit and rollback the WriteUnitOfWork successfully. However, for&lt;br/&gt;
code that has conditional logic based on checking RecoveryUnit::isActive(), this may&lt;br/&gt;
result in behavior that would deviate from a server running with the WiredTiger storage&lt;br/&gt;
engine.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 8b10fbf556eaad5a7b0379e47ab774f6d1df3228)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c203b21711233ede56337cd9ed8b2c67e9af461a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c203b21711233ede56337cd9ed8b2c67e9af461a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3932712" author="xgen-internal-githook" created="Wed, 14 Jul 2021 11:10:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58357&quot; title=&quot;[ephemeralForTest] TemporaryKVRecordStore fails to register commit handler in WCE loop&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58357&quot;&gt;&lt;del&gt;SERVER-58357&lt;/del&gt;&lt;/a&gt; transition EFT RecoveryUnit state to active when there are pending modifications&lt;/p&gt;

&lt;p&gt;Previously, we would leave the EFT RecoveryUnit in an inactive-but-in-UOW state which&lt;br/&gt;
still allows us to commit and rollback the WriteUnitOfWork successfully. However, for&lt;br/&gt;
code that has conditional logic based on checking RecoveryUnit::isActive(), this may&lt;br/&gt;
result in behavior that would deviate from a server running with the WiredTiger storage&lt;br/&gt;
engine.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8b10fbf556eaad5a7b0379e47ab774f6d1df3228&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8b10fbf556eaad5a7b0379e47ab774f6d1df3228&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3921870" author="benety.goh" created="Wed, 7 Jul 2021 21:59:47 +0000"  >&lt;p&gt;The RecoveryUnit state should generally follow &lt;a href=&quot;https://github.com/mongodb/mongo/blob/20fabcca5d9c29f4eef0ab026b50c24a038c63f1/src/mongo/db/storage/recovery_unit.h#L604-L640&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this transition graph&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
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