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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-30118] DocumentSourceMergeCursors::doDispose() should not call done() on connections in state between initLazy and initLazyFinish</title>
                <link>https://jira.mongodb.org/browse/SERVER-30118</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/pipeline/document_source_merge_cursors.cpp#L178-L180&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/db/pipeline/document_source_merge_cursors.cpp#L178-L180&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;This has always been illegal, but at the time it was written, dispose() would get called while in that state. However, calling code has changed such that dispose() is now called if start() throws, by way of ClientCursorPin::deleteUnderlying(). &lt;/p&gt;</description>
                <environment></environment>
        <key id="403275">SERVER-30118</key>
            <summary>DocumentSourceMergeCursors::doDispose() should not call done() on connections in state between initLazy and initLazyFinish</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="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Wed, 12 Jul 2017 20:29:25 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:17 +0000</updated>
                            <resolved>Wed, 26 Jul 2017 19:22:29 +0000</resolved>
                                                    <fixVersion>3.5.11</fixVersion>
                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1632632" author="xgen-internal-githook" created="Wed, 26 Jul 2017 19:18:04 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;mathias@10gen.com&apos;, &apos;username&apos;: &apos;RedBeard0531&apos;, &apos;name&apos;: &apos;Mathias Stearn&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30118&quot; title=&quot;DocumentSourceMergeCursors::doDispose() should not call done() on connections in state between initLazy and initLazyFinish&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30118&quot;&gt;&lt;del&gt;SERVER-30118&lt;/del&gt;&lt;/a&gt; DSMergeCursors only return connections to pool if in clean state&lt;/p&gt;

&lt;p&gt;If DSMergeCursors::start() fails part way through either loop, some&lt;br/&gt;
connections will be left in a state where a request has been sent but the&lt;br/&gt;
reply hasn&apos;t been read yet. Throwing at this point will eventually cause&lt;br/&gt;
doDispose() to be called, which would previously have returned this cursor to&lt;br/&gt;
the connection pool, where a later user could see our reply instead of theirs.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9ff5e02567a22e06ce4cb56faf05365004536b74&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9ff5e02567a22e06ce4cb56faf05365004536b74&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1632631" author="xgen-internal-githook" created="Wed, 26 Jul 2017 19:18:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;mathias@10gen.com&apos;, &apos;username&apos;: &apos;RedBeard0531&apos;, &apos;name&apos;: &apos;Mathias Stearn&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30118&quot; title=&quot;DocumentSourceMergeCursors::doDispose() should not call done() on connections in state between initLazy and initLazyFinish&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30118&quot;&gt;&lt;del&gt;SERVER-30118&lt;/del&gt;&lt;/a&gt; always check replyTo field in DBClient&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d94b263ca72b874440757259a56bd5676b5ee4a3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d94b263ca72b874440757259a56bd5676b5ee4a3&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1632630" author="xgen-internal-githook" created="Wed, 26 Jul 2017 19:18:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;mathias@10gen.com&apos;, &apos;username&apos;: &apos;RedBeard0531&apos;, &apos;name&apos;: &apos;Mathias Stearn&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30118&quot; title=&quot;DocumentSourceMergeCursors::doDispose() should not call done() on connections in state between initLazy and initLazyFinish&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30118&quot;&gt;&lt;del&gt;SERVER-30118&lt;/del&gt;&lt;/a&gt; Stop setting messageIDs in AbstractMessagingPort::say() and call()&lt;/p&gt;

&lt;p&gt;It is now the responsibility of the callers (including the same-named methods&lt;br/&gt;
on DBClientConnection) to prepare a ready-to-send Message. AMP&apos;s job is now&lt;br/&gt;
just to send the provided message as-is.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a405592e179d9bc704c8e6fb7faac22ade77ecdb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a405592e179d9bc704c8e6fb7faac22ade77ecdb&lt;/a&gt;&lt;/p&gt;</comment>
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