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    <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-74776] Use several `ExecutorFuture` rather than future chain in `mergeAllChunksOnShardInTransaction`</title>
                <link>https://jira.mongodb.org/browse/SERVER-74776</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/3baa95b8fc71d1c8b62e678463d5dbfc169e7fab/src/mongo/util/future_impl.h#L476&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;This invariant&lt;/a&gt; is a safeguard to prevent creating unbounded future chains that can cause a stack overflow since the completion logic is recursive. It follows that when merging more than 32 contiguous sequences of chunks in &lt;tt&gt;mergeAllChunksOnShard&lt;/tt&gt; this invariant is triggered.&lt;/p&gt;

&lt;p&gt;Purpose of this ticket is to replace the future chain iteratively built within &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a9684a6176388f095a6a2b7857c042a89bf56530/src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp#L410-L450&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this loop&lt;/a&gt; with an &lt;tt&gt;ExecutorFuture&lt;/tt&gt; list and then &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a9684a6176388f095a6a2b7857c042a89bf56530/src/mongo/util/future_util.h#L502&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;wait for all to succeed&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2286442">SERVER-74776</key>
            <summary>Use several `ExecutorFuture` rather than future chain in `mergeAllChunksOnShardInTransaction`</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 Mar 2023 08:33:04 +0000</created>
                <updated>Sun, 29 Oct 2023 21:25:03 +0000</updated>
                            <resolved>Thu, 16 Mar 2023 10:58:36 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5276972" author="xgen-internal-githook" created="Thu, 16 Mar 2023 10:50:54 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-74776&quot; title=&quot;Use several `ExecutorFuture` rather than future chain in `mergeAllChunksOnShardInTransaction`&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-74776&quot;&gt;&lt;del&gt;SERVER-74776&lt;/del&gt;&lt;/a&gt; Use several `ExecutorFuture` rather than future chain in `mergeAllChunksOnShardInTransaction`&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a475d35fb956e2f1b18539b4cb815ea0688812cd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a475d35fb956e2f1b18539b4cb815ea0688812cd&lt;/a&gt;&lt;/p&gt;</comment>
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