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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>
    </build-info>


<item>
            <title>[SERVER-34899] &quot;best-effort&quot; setShardVersion sent from donor to recipient after chunk migration commit always fails if this was first chunk migrated to recipient</title>
                <link>https://jira.mongodb.org/browse/SERVER-34899</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This is because the donor shard &lt;a href=&quot;https://github.com/mongodb/mongo/blame/r3.7.9/src/mongo/db/s/migration_source_manager.cpp#L98&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;sends authoritative=false&lt;/a&gt; in its setShardVersion request to the recipient, and setShardVersion &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/s/set_shard_version_command.cpp#L325-L329&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;requires authoritative=true&lt;/a&gt; if the shard does not have in-memory sharding state for this shard (which happens, for example, after the shard restarts or if this is the first chunk being received by the shard).&lt;/p&gt;

&lt;p&gt;I think the fix is just to send authoritative=true, but we should probably also add some testing.&lt;/p&gt;

&lt;p&gt;Noticed because of this log line while investigating a build failure:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;d23011| 2018-03-16T19:26:02.396+0000 I COMMAND  [conn18] command admin.$cmd appName: &quot;MongoDB Shell&quot; command: setShardVersion { setShardVersion: &quot;foo.bar&quot;, init: false, authoritative: false, configdb: &quot;upsert_sharded-configRS/ip-10-122-13-51:23012,ip-10-122-13-51:23013,ip-10-122-13-51:23014&quot;, shard: &quot;upsert_sharded-rs1&quot;, shardHost: &quot;ip-10-122-13-51:23011&quot;, version: Timestamp(2, 1), versionEpoch: ObjectId(&apos;5aac1a47a06d48723a19335e&apos;), noConnectionVersioning: true, $clusterTime: { clusterTime: Timestamp(1521228362, 11), signature: { hash: BinData(0, F7FE62FC747161A2C451B9B9300408EF051CC7F8), keyId: 6533625978638303251 } }, $client: { application: { name: &quot;MongoDB Shell&quot; }, driver: { name: &quot;MongoDB Internal Client&quot;, version: &quot;3.7.3-66-gf092c84d7f&quot; }, os: { type: &quot;Linux&quot;, name: &quot;Red Hat Enterprise Linux Server release 6.2 (Santiago)&quot;, architecture: &quot;x86_64&quot;, version: &quot;Kernel 2.6.32-220.el6.x86_64&quot; }, mongos: { host: &quot;ip-10-122-13-51:23015&quot;, client: &quot;127.0.0.1:45799&quot;, version: &quot;3.7.3-66-gf092c84d7f&quot; } }, $configServerState: { opTime: { ts: Timestamp(1521228362, 11), t: 2 } }, $db: &quot;admin&quot; } numYields:0 ok:0 errMsg:&quot;first time for collection &apos;foo.bar&apos;&quot; errName:UnknownError errCode:8 reslen:451 locks:{ Global: { acquireCount: { r: 2 } }, Database: { acquireCount: { r: 1 } }, Collection: { acquireCount: { r: 1 } } } protocol:op_msg 0ms&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="541083">SERVER-34899</key>
            <summary>&quot;best-effort&quot; setShardVersion sent from donor to recipient after chunk migration commit always fails if this was first chunk migrated to recipient</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="esha.maharishi@mongodb.com">Esha Maharishi</reporter>
                        <labels>
                    </labels>
                <created>Tue, 8 May 2018 19:38:25 +0000</created>
                <updated>Tue, 6 Dec 2022 03:30:04 +0000</updated>
                            <resolved>Tue, 8 May 2018 19:48:27 +0000</resolved>
                                    <version>3.6.4</version>
                    <version>3.7.9</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="1886266" author="esha.maharishi@10gen.com" created="Tue, 8 May 2018 19:47:55 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt; oh, nice, haha. Closing as dupe.&lt;/p&gt;</comment>
                            <comment id="1886260" author="renctan" created="Tue, 8 May 2018 19:45:21 +0000"  >&lt;p&gt;Dup of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-34322&quot; title=&quot;Best effort ssv to recipient shard will never succeed for the first time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-34322&quot;&gt;&lt;del&gt;SERVER-34322&lt;/del&gt;&lt;/a&gt;?&lt;/p&gt;</comment>
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