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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-70248] Race in ShouldBeSafeToRetryOnStepDown test can lead to hang</title>
                <link>https://jira.mongodb.org/browse/SERVER-70248</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, the global index cloner doesn&apos;t &lt;a href=&quot;https://github.com/mongodb/mongo/blob/56441edbc212031f05dbe045cf1b3aa47492f17c/src/mongo/db/s/global_index/global_index_cloning_service.cpp#L368&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;skip the clone phase&lt;/a&gt; after it steps up even if the current step is already beyond it. This is mostly harmless as it will end up doing no writes because all documents that needs to be fetched are already cloned. However, this can still cause it to start a transaction when reading the skip id collection. If the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7d6c7926fe8bc87b4c92af0fbc6ac4cd4298c3ad/src/mongo/db/s/global_index/global_index_cloning_service_test.cpp#L505&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;cleanup&lt;/a&gt; gets called while that transaction is still running, it will trigger &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70247&quot; title=&quot;SyncTransactionWithRetries used with SEPTransactionClient can leave transactions open when runNoThrow opCtx gets cancelled&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70247&quot;&gt;&lt;del&gt;SERVER-70247&lt;/del&gt;&lt;/a&gt; and cause the transaction to stay alive even after the cloner finished. This will then cause the test to hang because the fixture will &lt;a href=&quot;https://github.com/mongodb/mongo/blob/56441edbc212031f05dbe045cf1b3aa47492f17c/src/mongo/db/service_context_d_test_fixture.cpp#L169&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;try to acquire MODE_X&lt;/a&gt; during destruction.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2152770">SERVER-70248</key>
            <summary>Race in ShouldBeSafeToRetryOnStepDown test can lead to hang</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="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Wed, 5 Oct 2022 20:06:15 +0000</created>
                <updated>Sun, 29 Oct 2023 21:32:21 +0000</updated>
                            <resolved>Thu, 6 Oct 2022 20:13:59 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4883919" author="xgen-internal-githook" created="Thu, 6 Oct 2022 18:19:36 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Randolph Tan&apos;, &apos;email&apos;: &apos;randolph@10gen.com&apos;, &apos;username&apos;: &apos;renctan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70248&quot; title=&quot;Race in ShouldBeSafeToRetryOnStepDown test can lead to hang&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70248&quot;&gt;&lt;del&gt;SERVER-70248&lt;/del&gt;&lt;/a&gt; Race in ShouldBeSafeToRetryOnStepDown test can lead to hang&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b74adb6c6b5efb23814d1cf0234088f337ea4861&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b74adb6c6b5efb23814d1cf0234088f337ea4861&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2152748">SERVER-70247</issuekey>
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