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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-19957] findAndModify with remove=true doesn&apos;t retry deleting document on WCE</title>
                <link>https://jira.mongodb.org/browse/SERVER-19957</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;tt&gt;WorkingSetMember&lt;/tt&gt; is &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.1.6/src/mongo/db/exec/delete.cpp#L172-L178&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;transitioned into the &lt;tt&gt;OWNED_OBJ&lt;/tt&gt;&lt;/a&gt; state prior to the deletion of the document from the collection.&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;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;if (_params.returnDeleted) {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;    // Save a copy of the document that is about to get deleted.&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;    BSONObj deletedDoc = member-&amp;gt;obj.value();&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;    member-&amp;gt;obj.setValue(deletedDoc.getOwned());&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;    member-&amp;gt;loc = RecordId();&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;    member-&amp;gt;transitionToOwnedObj();&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;}&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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			&lt;/tbody&gt;
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&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Consider the following sequence of events:&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;The user does {&lt;tt&gt;findAndModify: &apos;coll&apos;, query: {}, remove: true&lt;/tt&gt;}}.&lt;/li&gt;
	&lt;li&gt;The child of the &lt;tt&gt;DeleteStage&lt;/tt&gt; advances and the corresponding &lt;tt&gt;WorkingSetMember&lt;/tt&gt; is in the &lt;tt&gt;LOC_AND_OBJ&lt;/tt&gt; state.&lt;/li&gt;
	&lt;li&gt;We intend to return the delete document, so the &lt;tt&gt;WorkingSetMember&lt;/tt&gt; is transitioned into the &lt;tt&gt;OWNED_OBJ&lt;/tt&gt; state.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;Collection::deleteDocument()&lt;/tt&gt; is called and throws a &lt;tt&gt;WriteConflictException&lt;/tt&gt;.&lt;/li&gt;
	&lt;li&gt;The &lt;tt&gt;WorkingSetID&lt;/tt&gt; of the &lt;tt&gt;WorkingSetMember&lt;/tt&gt; is saved in &lt;tt&gt;_idRetrying&lt;/tt&gt; and the &lt;tt&gt;DeleteStage&lt;/tt&gt; returns &lt;tt&gt;NEED_YIELD&lt;/tt&gt;.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;DeleteStage::work()&lt;/tt&gt; is called again and &lt;tt&gt;status&lt;/tt&gt; is set to &lt;tt&gt;ADVANCED&lt;/tt&gt; and the &lt;tt&gt;id&lt;/tt&gt; is set to &lt;tt&gt;_idRetrying&lt;/tt&gt;.&lt;/li&gt;
	&lt;li&gt;The &lt;tt&gt;WorkingSetMember&lt;/tt&gt; is in the &lt;tt&gt;OWNED_OBJ&lt;/tt&gt; state and therefore returns false when &lt;tt&gt;member-&amp;gt;hasLoc()&lt;/tt&gt; is called.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;nInvalidateSkips&lt;/tt&gt; is incremented and the &lt;tt&gt;DeleteStage&lt;/tt&gt; returns &lt;tt&gt;NEED_TIME&lt;/tt&gt;.&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;Thus, we won&apos;t actually retry deleting the document if a &lt;tt&gt;WriteConflictException&lt;/tt&gt; occurred. Instead, we should transition the &lt;tt&gt;WorkingSetMember&lt;/tt&gt; to the &lt;tt&gt;OWNED_OBJ&lt;/tt&gt; state after the delete occurs.&lt;/p&gt;</description>
                <environment></environment>
        <key id="225719">SERVER-19957</key>
            <summary>findAndModify with remove=true doesn&apos;t retry deleting document on WCE</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="9">Done</resolution>
                                        <assignee username="max.hirschhorn@mongodb.com">Max Hirschhorn</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                    </labels>
                <created>Fri, 14 Aug 2015 15:45:51 +0000</created>
                <updated>Sat, 19 Sep 2015 00:38:00 +0000</updated>
                            <resolved>Tue, 8 Sep 2015 14:21:25 +0000</resolved>
                                    <version>3.1.2</version>
                                    <fixVersion>3.1.8</fixVersion>
                                    <component>Querying</component>
                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1024079" author="xgen-internal-githook" created="Tue, 8 Sep 2015 14:20:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;visemet&apos;, u&apos;name&apos;: u&apos;Max Hirschhorn&apos;, u&apos;email&apos;: u&apos;max.hirschhorn@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19957&quot; title=&quot;findAndModify with remove=true doesn&amp;#39;t retry deleting document on WCE&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-19957&quot;&gt;&lt;del&gt;SERVER-19957&lt;/del&gt;&lt;/a&gt; Transition to OWNED_OBJ state after performing the delete.&lt;/p&gt;

&lt;p&gt;Otherwise if a WriteConflictException were to occur during&lt;br/&gt;
Collection::deleteDocument(), then a findAndModify operation with&lt;br/&gt;
remove=true would not retry deleting that document because the&lt;br/&gt;
associated WorkingSetMember no longer has a loc.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d346f03b7a5c67af809173a56c770801bd1e9eaf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d346f03b7a5c67af809173a56c770801bd1e9eaf&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="168391">SERVER-16063</issuekey>
        </issuelink>
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