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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-55149] Remove wrong TODO on the drop collection coordinator</title>
                <link>https://jira.mongodb.org/browse/SERVER-55149</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;del&gt;Currently we are &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e3c74559769e07e6c9ddf67bc65d583ae7273b66/src/mongo/db/s/drop_collection_coordinator.cpp#L113&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;unconditionally broadcasting the drop collection to all the shards also for un-sharded collections&lt;/a&gt; because of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33973&quot; title=&quot;Force cleanup of possibly remaining partial data (from failed collection/database drop) when rerunning dropCollection command&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33973&quot;&gt;&lt;del&gt;SERVER-33973&lt;/del&gt;&lt;/a&gt;. After 5.0 will became last LTS we can actually stop broadcasting to all the shards for the un-sharded collections.&lt;/del&gt;&lt;/p&gt;

&lt;p&gt;As discussed with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kaloian.manassiev&quot; class=&quot;user-hover&quot; rel=&quot;kaloian.manassiev&quot;&gt;kaloian.manassiev&lt;/a&gt; we can&apos;t stop broadcasting even in 5.1 because some old drop collection run on an old binary (in which was broken) could have left garbage.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1646552">SERVER-55149</key>
            <summary>Remove wrong TODO on the drop collection coordinator</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="tommaso.tocci@mongodb.com">Tommaso Tocci</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                            <label>PM-1965-Milestone-1</label>
                    </labels>
                <created>Thu, 11 Mar 2021 10:36:35 +0000</created>
                <updated>Sun, 29 Oct 2023 21:56:24 +0000</updated>
                            <resolved>Thu, 1 Apr 2021 12:09:05 +0000</resolved>
                                    <version>Backlog</version>
                                    <fixVersion>5.0.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3695908" author="xgen-internal-githook" created="Thu, 1 Apr 2021 12:04:09 +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-55149&quot; title=&quot;Remove wrong TODO on the drop collection coordinator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55149&quot;&gt;&lt;del&gt;SERVER-55149&lt;/del&gt;&lt;/a&gt; Remove wrong TODO on the drop collection coordinator&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/26259c07c39c58d26b2f82fedca9c4b97263ee36&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/26259c07c39c58d26b2f82fedca9c4b97263ee36&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3674980" author="kaloian.manassiev" created="Sat, 20 Mar 2021 06:55:05 +0000"  >&lt;p&gt;Yes, but we can do a &lt;tt&gt;movePrimary&lt;/tt&gt; and that operation doesn&apos;t cleanup on failure either.&lt;/p&gt;</comment>
                            <comment id="3666067" author="tommaso.tocci" created="Tue, 16 Mar 2021 08:56:41 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kaloian.manassiev&quot; class=&quot;user-hover&quot; rel=&quot;kaloian.manassiev&quot;&gt;kaloian.manassiev&lt;/a&gt; I believe you are right about &quot;but also some guarantee that we have cleaned any leftover garbage up from previous versions&quot;. On the other hand since we are talking about un-sharded collection I don&apos;t think that your second requirement applies. In fact we can&apos;t move a chunk for an unsharded collection.&lt;/p&gt;</comment>
                            <comment id="3666019" author="kaloian.manassiev" created="Tue, 16 Mar 2021 07:09:40 +0000"  >&lt;p&gt;I think it might not actually be sufficient that 5.0 becomes LTS, but also some guarantee that we have cleaned any leftover garbage up from previous versions and also to guarantee that moving the last chunk out of a shard cleans up any leftover state, which it currently doesn&apos;t.&lt;/p&gt;</comment>
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