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    <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-60737] Remove incorrect chunk timestamp check from ShardServerCatalogCacheLoaderTest</title>
                <link>https://jira.mongodb.org/browse/SERVER-60737</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/0d369af9f5be858fb06ed7c8013e05365288dcb0/src/mongo/db/s/shard_server_catalog_cache_loader_test.cpp#L511-L512&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;This assert&lt;/a&gt; in ShardServerCatalogCacheLoaderTest_PrimaryLoadFromShardedWithChangeOnMetadataFormatBecauseUpgrade is incorrect. Under particular interleaving of the unit test thread and ShardServerCatalogCacheLoader thread, it is can fail.&lt;/p&gt;

&lt;p&gt;The test sets up a &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0d369af9f5be858fb06ed7c8013e05365288dcb0/src/mongo/db/s/shard_server_catalog_cache_loader_test.cpp#L502-L503&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;situation where the SSCCL has seen some chunks with their &apos;timestamp&apos; field set, but the collection entry still without &apos;timestamp&apos;&lt;/a&gt;. Later, the test expects the SSCCL to return the &apos;timestamp&apos; set for those chunks that had it.  This only works if the SSCCL has not persisted the chunks to disk yet (and in practice, in the test is very likely to not have persisted it).&lt;/p&gt;

&lt;p&gt;If the SSCCL had time to persist the disk, it would have done it &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0d369af9f5be858fb06ed7c8013e05365288dcb0/src/mongo/s/catalog/type_chunk.cpp#L467-L479&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;without the timestamp&lt;/a&gt; (as expected). Upon reading, the SSCCL will read the persisted chunks, then[ if the persisted collection had &apos;timestamp&apos;, it would add the &apos;timestamp&apos; to the chunks|https://github.com/mongodb/mongo/blob/0d369af9f5be858fb06ed7c8013e05365288dcb0/src/mongo/db/s/shard_metadata_util.cpp#L302]. In the situation of the test, the collection still does not have &apos;timestamp&apos;, so the returned chunks wouldn&apos;t have it.&lt;/p&gt;

&lt;p&gt;This is the expected behavior of the SSCCL, so the check needs to be removed.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1899346">SERVER-60737</key>
            <summary>Remove incorrect chunk timestamp check from ShardServerCatalogCacheLoaderTest</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="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
                    </labels>
                <created>Fri, 15 Oct 2021 11:20:48 +0000</created>
                <updated>Sun, 29 Oct 2023 21:47:20 +0000</updated>
                            <resolved>Fri, 15 Oct 2021 15:50:50 +0000</resolved>
                                    <version>5.0.0</version>
                                    <fixVersion>5.0.4</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4126551" author="xgen-internal-githook" created="Fri, 15 Oct 2021 15:18:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Serra Torrens&apos;, &apos;email&apos;: &apos;jordi.serra-torrens@mongodb.com&apos;, &apos;username&apos;: &apos;jordist&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60737&quot; title=&quot;Remove incorrect chunk timestamp check from ShardServerCatalogCacheLoaderTest&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60737&quot;&gt;&lt;del&gt;SERVER-60737&lt;/del&gt;&lt;/a&gt; Remove incorrect chunk timestamp check from ShardServerCatalogCacheLoaderTest&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0fee1e4a5c2a188f24166d06f1e6fe120017dadd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0fee1e4a5c2a188f24166d06f1e6fe120017dadd&lt;/a&gt;&lt;/p&gt;</comment>
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