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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-53999] Time-series buckets often close due to time moving backward with concurrent writers</title>
                <link>https://jira.mongodb.org/browse/SERVER-53999</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When there are concurrent writers inserting into a time-series collection, the writers racing to call &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ea7b9357fc3631000eff64b92634d1b7a6068305/src/mongo/db/timeseries/bucket_catalog.h#L87-L92&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;BucketCatalog::insert&lt;/a&gt; causes these inserts to be out of order of the times specified by the timeField. Since we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ea7b9357fc3631000eff64b92634d1b7a6068305/src/mongo/db/timeseries/bucket_catalog.cpp#L137-L140&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;always close a bucket if time moves backward&lt;/a&gt;,&#160;we end up closing many buckets&#160;this way that otherwise would not need to be closed. We should find a way to mitigate this behavior so that we don&apos;t end up with many small buckets.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1598151">SERVER-53999</key>
            <summary>Time-series buckets often close due to time moving backward with concurrent writers</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="gregory.noma@mongodb.com">Gregory Noma</assignee>
                                    <reporter username="gregory.noma@mongodb.com">Gregory Noma</reporter>
                        <labels>
                    </labels>
                <created>Fri, 22 Jan 2021 22:45:35 +0000</created>
                <updated>Sun, 29 Oct 2023 21:58:28 +0000</updated>
                            <resolved>Fri, 5 Feb 2021 04:16:56 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3600879" author="xgen-internal-githook" created="Fri, 5 Feb 2021 03:47:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53999&quot; title=&quot;Time-series buckets often close due to time moving backward with concurrent writers&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53999&quot;&gt;&lt;del&gt;SERVER-53999&lt;/del&gt;&lt;/a&gt; Allow a time-series bucket&apos;s id to move backward before being committed&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/11cdc521135cd8ad49136a4bfbc9f873ca519537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/11cdc521135cd8ad49136a4bfbc9f873ca519537&lt;/a&gt;&lt;/p&gt;</comment>
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