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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>[SERVER-66388] Disallow using transaction API in operations with shard versions</title>
                <link>https://jira.mongodb.org/browse/SERVER-66388</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The internal transactions API will inherit options from its caller&apos;s opCtx, like &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4201be5dc451353a6f8ea1f373fd34c752b48739/src/mongo/db/transaction_api.cpp#L716-L719&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;read and write concern&lt;/a&gt;, but notably it does not inherit shard or database versions. If an operation on a shardsvr with shard versions used the API, the API&apos;s spawned commands would not include those versions and thus wouldn&apos;t obey sharding protocols, e.g. could read/write to orphan documents or during a migration critical section.&lt;/p&gt;

&lt;p&gt;To be correct, the API should probably forward any shard versions in commands against the same namespaces, but it&apos;s unclear what to do if other namespaces are targeted by the transaction. No current uses of the API run in this case, so to prevent accidental misuse we should add an assertion to disallow using the API when its caller has a shard/db version and we can relax it if future if necessary when requirements are more clear.&lt;/p&gt;

&lt;p&gt;This doesn&apos;t need to apply if the transaction is acting as a router because the router commands will attach appropriate shard/db versions.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2044605">SERVER-66388</key>
            <summary>Disallow using transaction API in operations with shard versions</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="jack.mulrow@mongodb.com">Jack Mulrow</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                    </labels>
                <created>Wed, 11 May 2022 14:56:57 +0000</created>
                <updated>Sun, 29 Oct 2023 21:38:20 +0000</updated>
                            <resolved>Wed, 11 May 2022 23:23:25 +0000</resolved>
                                                    <fixVersion>6.0.0-rc8</fixVersion>
                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4579289" author="xgen-internal-githook" created="Sat, 28 May 2022 02:17:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jack Mulrow&apos;, &apos;email&apos;: &apos;jack.mulrow@mongodb.com&apos;, &apos;username&apos;: &apos;jsmulrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-66388&quot; title=&quot;Disallow using transaction API in operations with shard versions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-66388&quot;&gt;&lt;del&gt;SERVER-66388&lt;/del&gt;&lt;/a&gt; Disallow using transaction API in operations with shard versions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 51bff7a1d0145afebb57a04e82bd962985801f06)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b054e4fb3c43c15f55d7ae45f5b5e3957dd2db15&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b054e4fb3c43c15f55d7ae45f5b5e3957dd2db15&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4543511" author="xgen-internal-githook" created="Wed, 11 May 2022 22:35:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jack Mulrow&apos;, &apos;email&apos;: &apos;jack.mulrow@mongodb.com&apos;, &apos;username&apos;: &apos;jsmulrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-66388&quot; title=&quot;Disallow using transaction API in operations with shard versions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-66388&quot;&gt;&lt;del&gt;SERVER-66388&lt;/del&gt;&lt;/a&gt; Disallow using transaction API in operations with shard versions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/51bff7a1d0145afebb57a04e82bd962985801f06&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/51bff7a1d0145afebb57a04e82bd962985801f06&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4541797" author="jack.mulrow" created="Wed, 11 May 2022 14:58:07 +0000"  >&lt;p&gt;The only case that fails the proposed assertion is explain for FLE update and delete, which was unintentional and will be fixed by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-66366&quot; title=&quot;mongos passes encryptionInformation from BatchedCommandRequest to shards after rewrite for explain commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-66366&quot;&gt;&lt;del&gt;SERVER-66366&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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