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    <title>MongoDB Jira</title>
    <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>[DOCS-12474] Update movePrimary and dropDatabase warnings to also include all shard nodes</title>
                <link>https://jira.mongodb.org/browse/DOCS-12474</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;ul&gt;
	&lt;li&gt;movePrimary &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/movePrimary/index.html#considerations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/command/movePrimary/index.html#considerations&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;dropDatabase &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/dropDatabase/#replica-set-and-sharded-clusters&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/command/dropDatabase/#replica-set-and-sharded-clusters&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Now that $out can be doing inserts on a remote shard, it can also be affected by the issues with movePrimary and dropDatabase. Note that the flushRouter command will also need to be sent to secondaries as well.&lt;/p&gt;
&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;
&lt;ul&gt;
	&lt;li&gt;Investigate behavior mentioned above&lt;/li&gt;
	&lt;li&gt;Update documentation for 4.2 only&lt;/li&gt;
&lt;/ul&gt;


&lt;h2&gt;&lt;a name=&quot;%C2%A0&quot;&gt;&lt;/a&gt;&#160;&lt;/h2&gt;</description>
                <environment></environment>
        <key id="697730">DOCS-12474</key>
            <summary>Update movePrimary and dropDatabase warnings to also include all shard nodes</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="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Thu, 14 Feb 2019 18:30:10 +0000</created>
                <updated>Mon, 30 Oct 2023 20:46:00 +0000</updated>
                            <resolved>Mon, 19 Aug 2019 18:23:09 +0000</resolved>
                                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2378913" author="kay.kim@10gen.com" created="Tue, 20 Aug 2019 14:24:53 +0000"  >&lt;p&gt;No worries.   Hope you are doing well.  Kay&lt;/p&gt;</comment>
                            <comment id="2378246" author="akira.kurogane@gmail.com" created="Tue, 20 Aug 2019 01:25:44 +0000"  >&lt;p&gt;Thank you Kay. I appreciated that was worked out so quickly, and  in this week following the GA release no less.&lt;/p&gt;

&lt;p&gt;Akira&lt;/p&gt;</comment>
                            <comment id="2377665" author="kay.kim@10gen.com" created="Mon, 19 Aug 2019 18:23:02 +0000"  >&lt;p&gt;Updated.  I did a quick cursory check, and I think this is part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32198&quot; title=&quot;Missing collection metadata on the shard implies both UNSHARDED and &amp;quot;metadata not loaded yet&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32198&quot;&gt;&lt;del&gt;SERVER-32198&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2377657" author="xgen-internal-githook" created="Mon, 19 Aug 2019 18:19:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kay Kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;username&apos;: &apos;kay-kim&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12474&quot; title=&quot;Update movePrimary and dropDatabase warnings to also include all shard nodes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12474&quot;&gt;&lt;del&gt;DOCS-12474&lt;/del&gt;&lt;/a&gt;: 4.2 clarify dropDatabase/movePrimary cache clearing change&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/61ecc5819da2ec2fc753db912e21984f123cacbd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/61ecc5819da2ec2fc753db912e21984f123cacbd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2377064" author="kay.kim@10gen.com" created="Mon, 19 Aug 2019 13:42:43 +0000"  >&lt;p&gt;I&apos;ll double check.  I would imagine that $merge as well but will find out if broader issue.&lt;/p&gt;</comment>
                            <comment id="2377025" author="akira.kurogane@gmail.com" created="Mon, 19 Aug 2019 13:30:16 +0000"  >&lt;p&gt;Thanks, appreciated Kay. I hope that the issue is less broad than I thought when I first read just the release notes.&lt;/p&gt;

&lt;p&gt;May I also ask is it just the $out agg operator that can possibly be mislead by the cache after a db namespace is reused? I did some JIRA searching but failed to find a match for the underlying cause.&lt;/p&gt;

&lt;p&gt;Akira&lt;/p&gt;</comment>
                            <comment id="2376932" author="kay.kim@10gen.com" created="Mon, 19 Aug 2019 12:26:46 +0000"  >&lt;p&gt;Hey &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=akira&quot; class=&quot;user-hover&quot; rel=&quot;akira&quot;&gt;akira&lt;/a&gt; &amp;#8211; I think it&apos;s just that I shortened it.    I&apos;ll reopen this issue to add clarification.  &lt;/p&gt;</comment>
                            <comment id="2376460" author="akira.kurogane@gmail.com" created="Mon, 19 Aug 2019 05:29:11 +0000"  >&lt;p&gt;Hi Kay.&lt;/p&gt;

&lt;p&gt;The two pages for the dropDatabase and movePrimary command only warn of the issue, and recommend the workaround of restarting all shard mongod and mongos nodes, if dropping and then re-using&#160;the same database name.&lt;/p&gt;

&lt;p&gt;But the 4.2 release notes page removes that &apos;only if re-using the same db namespace&apos; clause and just says the workaround is needed anytime the dropDatabase or movePrimary are used.&lt;/p&gt;

&lt;p&gt;What is the issue that makes it necessary to say that any dropDatabase or movePrimary command requires the workaround? Or is it just that the&#160;&quot;dropDatabase and movePrimary&quot; section in the 4.2 release note page shortened the information a bit too much? &lt;/p&gt;

&lt;p&gt;Cheers,&lt;/p&gt;

&lt;p&gt;Akira&lt;/p&gt;</comment>
                            <comment id="2358470" author="xgen-internal-githook" created="Mon, 5 Aug 2019 20:25:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kay Kim&apos;, &apos;username&apos;: &apos;kay-kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12474&quot; title=&quot;Update movePrimary and dropDatabase warnings to also include all shard nodes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12474&quot;&gt;&lt;del&gt;DOCS-12474&lt;/del&gt;&lt;/a&gt;: 4.2 dropDatabase/movePrimary post-step&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/dda19b8d4f70464002560a48fb893d4b0f801c8b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/dda19b8d4f70464002560a48fb893d4b0f801c8b&lt;/a&gt;&lt;/p&gt;</comment>
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