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    <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-70237] Chunks merge commit must not create a BSON object too large</title>
                <link>https://jira.mongodb.org/browse/SERVER-70237</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When multiple contiguous chunks are being merged, the commit on the config server is performed via a transaction that - currently - &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a2148a8a75befec27fa066f06254b787c92b7029/src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp#L795-L800&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;contains a delete statement&lt;/a&gt; for each single chunk involved in the operation.&lt;/p&gt;

&lt;p&gt;In case plenty of chunks are merged, it may happen to append too many delete statements leading to the creation a large BSON object exceeding the &lt;a href=&quot;https://www.mongodb.com/docs/v6.0/reference/limits/#mongodb-limit-BSON-Document-Size&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;maximum allowed size&lt;/a&gt; of 16MB.&lt;/p&gt;

&lt;p&gt;When that happens, the merge fails.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2152449">SERVER-70237</key>
            <summary>Chunks merge commit must not create a BSON object too large</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="silvia.surroca@mongodb.com">Silvia Surroca</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>collection-defrag-bugs</label>
                    </labels>
                <created>Wed, 5 Oct 2022 15:58:30 +0000</created>
                <updated>Sun, 29 Oct 2023 21:32:22 +0000</updated>
                            <resolved>Thu, 13 Oct 2022 14:43:39 +0000</resolved>
                                    <version>4.2.22</version>
                    <version>4.4.18</version>
                    <version>5.0.14</version>
                    <version>6.0.3</version>
                    <version>6.1.0-rc4</version>
                                    <fixVersion>6.0.4</fixVersion>
                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="5038602" author="xgen-internal-githook" created="Wed, 7 Dec 2022 20:53:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tommaso Tocci&apos;, &apos;email&apos;: &apos;tommaso.tocci@mongodb.com&apos;, &apos;username&apos;: &apos;toto-dev&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70237&quot; title=&quot;Chunks merge commit must not create a BSON object too large&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70237&quot;&gt;&lt;del&gt;SERVER-70237&lt;/del&gt;&lt;/a&gt; Chunks merge commit must not create a BSON object too large&lt;/p&gt;

&lt;p&gt;Non trivial backport of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70237&quot; title=&quot;Chunks merge commit must not create a BSON object too large&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70237&quot;&gt;&lt;del&gt;SERVER-70237&lt;/del&gt;&lt;/a&gt; and part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65838&quot; title=&quot;Remove applyOpsDeprecated usage from split/merge chunk functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65838&quot;&gt;&lt;del&gt;SERVER-65838&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1372bfc84c1913fa4c6c2d882ac8bbc7763af123&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1372bfc84c1913fa4c6c2d882ac8bbc7763af123&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4901013" author="xgen-internal-githook" created="Thu, 13 Oct 2022 14:38:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Silvia Surroca&apos;, &apos;email&apos;: &apos;silvia.surroca@mongodb.com&apos;, &apos;username&apos;: &apos;silviasuhu&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70237&quot; title=&quot;Chunks merge commit must not create a BSON object too large&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70237&quot;&gt;&lt;del&gt;SERVER-70237&lt;/del&gt;&lt;/a&gt; Chunks merge commit must not create a BSON object too large&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ac9c95d0f90fb882aee1043e9aae6ff2491a7fe4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ac9c95d0f90fb882aee1043e9aae6ff2491a7fe4&lt;/a&gt;&lt;/p&gt;</comment>
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