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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-38384] More verbose sh.shardCollection command</title>
                <link>https://jira.mongodb.org/browse/SERVER-38384</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hello,&lt;/p&gt;

&lt;p&gt;There are cases when sh.shardCollection takes a very long time. During that time the MongoDB Shell is hung. &lt;/p&gt;

&lt;p&gt;This is a bad user experience, since there is no information on what is happening and no estimates. Also, closing the window by mistake could probably cancel the operation after a very long wait.&lt;/p&gt;

&lt;p&gt;To provide a better user experience the sh.shardCollection should:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Provide verbose output of the different steps and remaining time.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;or&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;If that is not possible, return the shell prompt, inform the user that the operation is in progress and let the process run. Then, make the progress of the operation and its result available in sh.status output.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Regards.&lt;/p&gt;

</description>
                <environment></environment>
        <key id="642550">SERVER-38384</key>
            <summary>More verbose sh.shardCollection command</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="miguel.nieto@mongodb.com">Miguel Angel Nieto</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Dec 2018 08:50:46 +0000</created>
                <updated>Tue, 6 Dec 2022 03:11:37 +0000</updated>
                            <resolved>Mon, 23 Sep 2019 16:04:06 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2087578" author="renctan" created="Tue, 11 Dec 2018 20:46:10 +0000"  >&lt;p&gt;Notes:&lt;/p&gt;

&lt;p&gt;Shard coll summary (as of 4.1.6):&lt;/p&gt;

&lt;p&gt;1. Get distLocks for db and coll.&lt;br/&gt;
2. Check if any index is compatible with shard key and doesn&apos;t violate uniqueness.&lt;br/&gt;
3. Check every document whether the contain the full shard key with checkShardingIndex command.&lt;br/&gt;
4. Check zones.&lt;br/&gt;
5. Get uuid from primary shard.&lt;br/&gt;
6. Update config.collections.&lt;br/&gt;
7. Create initial chunks.&lt;/p&gt;

&lt;p&gt;The checkShardingIndex command by far has the potential to take a long time, since it had to scan every single document.&lt;/p&gt;</comment>
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