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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-33354] Add snapshot read support for additional commands</title>
                <link>https://jira.mongodb.org/browse/SERVER-33354</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Add snapshot read support for the following commands:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;parallelCollectionScan&lt;/li&gt;
	&lt;li&gt;count&lt;/li&gt;
	&lt;li&gt;distinct&lt;/li&gt;
	&lt;li&gt;group (deprecated)&lt;/li&gt;
&lt;/ol&gt;



</description>
                <environment></environment>
        <key id="498663">SERVER-33354</key>
            <summary>Add snapshot read support for additional commands</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="james.wahlin@mongodb.com">James Wahlin</assignee>
                                    <reporter username="james.wahlin@mongodb.com">James Wahlin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 15 Feb 2018 18:52:34 +0000</created>
                <updated>Sun, 29 Oct 2023 22:34:39 +0000</updated>
                            <resolved>Tue, 20 Mar 2018 18:09:34 +0000</resolved>
                                                    <fixVersion>3.7.4</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1839927" author="xgen-internal-githook" created="Tue, 20 Mar 2018 18:09:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;james@mongodb.com&apos;, &apos;name&apos;: &apos;James Wahlin&apos;, &apos;username&apos;: &apos;jameswahlin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33354&quot; title=&quot;Add snapshot read support for additional commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33354&quot;&gt;&lt;del&gt;SERVER-33354&lt;/del&gt;&lt;/a&gt; Add snapshot read support for additional commands&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/aaba5b468e67f81380f7fa099932a2722dab3a8a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/aaba5b468e67f81380f7fa099932a2722dab3a8a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1838332" author="james.wahlin@10gen.com" created="Mon, 19 Mar 2018 15:03:40 +0000"  >&lt;p&gt;Removed geoSearch from the scope of this ticket as support already exists.&lt;/p&gt;</comment>
                            <comment id="1838319" author="james.wahlin@10gen.com" created="Mon, 19 Mar 2018 14:59:35 +0000"  >&lt;p&gt;Created &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33976&quot; title=&quot;Restrict multi-statement transactions to supported commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33976&quot;&gt;&lt;del&gt;SERVER-33976&lt;/del&gt;&lt;/a&gt; to handle addition of a multi-statement transaction command white-list.&lt;/p&gt;</comment>
                            <comment id="1825048" author="james.wahlin@10gen.com" created="Tue, 6 Mar 2018 20:35:08 +0000"  >&lt;p&gt;Moved support for findAndModify to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33705&quot; title=&quot;Add snapshot read support for findAndModify&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33705&quot;&gt;&lt;del&gt;SERVER-33705&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1823929" author="siyuan.zhou@10gen.com" created="Mon, 5 Mar 2018 23:53:00 +0000"  >&lt;p&gt;Moved the support for delete (single &amp;amp; multi) into &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33686&quot; title=&quot;Support delete operations in transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33686&quot;&gt;&lt;del&gt;SERVER-33686&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1823474" author="david.storch" created="Mon, 5 Mar 2018 18:47:27 +0000"  >&lt;p&gt;Moved the task to support geoNear command (along with the $geoNear agg stage) to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33666&quot; title=&quot;Make $geoNear stage and geoNear command support readConcern level snapshot&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33666&quot;&gt;&lt;del&gt;SERVER-33666&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1820117" author="siyuan.zhou@10gen.com" created="Thu, 1 Mar 2018 18:19:16 +0000"  >&lt;p&gt;Moved insert to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32325&quot; title=&quot;Allow doing a single insert operation with deferred commit&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32325&quot;&gt;&lt;del&gt;SERVER-32325&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1819175" author="spencer" created="Wed, 28 Feb 2018 21:45:33 +0000"  >&lt;p&gt;We should make sure to be careful that adding snapshot read support for these commands doesn&apos;t allow them to be run as part of transactions&lt;/p&gt;</comment>
                            <comment id="1816456" author="siyuan.zhou@10gen.com" created="Mon, 26 Feb 2018 20:29:56 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33477&quot; title=&quot;Update session entry with _id upsert&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33477&quot;&gt;&lt;del&gt;SERVER-33477&lt;/del&gt;&lt;/a&gt; might address the WriteConflict error you saw and unblock you from running the test.&lt;/p&gt;</comment>
                            <comment id="1815976" author="tess.avitabile" created="Mon, 26 Feb 2018 15:15:14 +0000"  >&lt;p&gt;Note that &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33372&quot; title=&quot;Support readConcern snapshot for updates&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33372&quot;&gt;&lt;del&gt;SERVER-33372&lt;/del&gt;&lt;/a&gt; only added support for single-statement updates. Multi-statement updates currently &lt;a href=&quot;https://github.com/mongodb/mongo/blob/adfa37c74e716826cde8b7bb1ebbe9e6c99d77d4/jstests/noPassthrough/readConcern_snapshot.js#L196&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;return a WriteConflict error&lt;/a&gt;. Supporting multi-statement updates requires a refactor of the code to update the session transactions table, which will be done as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33430&quot; title=&quot;Do not update in-memory Session state or on disk txn table for individual writes in ongoing autocommit:false transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33430&quot;&gt;&lt;del&gt;SERVER-33430&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1808395" author="tess.avitabile" created="Fri, 16 Feb 2018 19:37:22 +0000"  >&lt;p&gt;The work for updates is tracked in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33372&quot; title=&quot;Support readConcern snapshot for updates&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33372&quot;&gt;&lt;del&gt;SERVER-33372&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="486646">DOCS-11245</issuekey>
        </issuelink>
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                            <issuelinktype id="10012">
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                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="499206">SERVER-33372</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="471965">SERVER-32325</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="500847">SERVER-33430</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="505916">SERVER-33666</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="506109">SERVER-33686</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="506628">SERVER-33705</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
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            <issuekey id="513402">SERVER-33976</issuekey>
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