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    <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-45940] Read/write concern jstest command overrides should override explicit RWC that matches the implicit server default</title>
                <link>https://jira.mongodb.org/browse/SERVER-45940</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The existing jstest overrides for read/write concern (used by various passthrough suites) currently cowardly fail if a jstest sets an explicit read/write concern that differs from what the override is trying to set.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/set_read_and_write_concerns.js#L117-L121&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/set_read_and_write_concerns.js#L117-L121&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/set_read_and_write_concerns.js#L146-L151&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/set_read_and_write_concerns.js#L146-L151&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/network_error_and_txn_override.js#L447-L452&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/r4.3.3/jstests/libs/override_methods/network_error_and_txn_override.js#L447-L452&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;However, in the presence of cluster-wide read/write concern defaults, it is now sometimes necessary for jstests to send an explicit RWC which is the implicit server default, in order to ensure correctness when the CWRWC default has been set to something else.  This includes common code in ReplSetTest/ShardingTest (see &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45651&quot; title=&quot;ReplSetTest stopSet checks should pass explicit RWC&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45651&quot;&gt;&lt;del&gt;SERVER-45651&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45908&quot; title=&quot;Use explicit read concern in sharding test index consistency hook&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45908&quot;&gt;&lt;del&gt;SERVER-45908&lt;/del&gt;&lt;/a&gt;).  This causes jstests in the affected passthrough suites to fail.&lt;/p&gt;

&lt;p&gt;The overrides should be relaxed such that if a command has explicit RWC which is an implicit server default (ie. {w: 1}, {w: 1, wtimeout: 0}, {level: &quot;local&quot;}, or {level: &quot;available&quot;}), then it gets replaced by the override (rather than the cowardly refusal).  This is still correct because the explicit RWC being replaced is identical to the behaviour that would have occurred if it had been omitted, and because the overrides are always used to upgrade to stronger RWC (and never weaker).&lt;/p&gt;</description>
                <environment></environment>
        <key id="1128509">SERVER-45940</key>
            <summary>Read/write concern jstest command overrides should override explicit RWC that matches the implicit server default</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="kevin.pulo@mongodb.com">Kevin Pulo</assignee>
                                    <reporter username="kevin.pulo@mongodb.com">Kevin Pulo</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Feb 2020 14:08:52 +0000</created>
                <updated>Sun, 29 Oct 2023 22:12:36 +0000</updated>
                            <resolved>Wed, 12 Feb 2020 02:20:08 +0000</resolved>
                                                    <fixVersion>4.3.4</fixVersion>
                                    <component>Replication</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2868971" author="xgen-internal-githook" created="Wed, 12 Feb 2020 02:09:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;devkev&apos;, &apos;name&apos;: &apos;Kevin Pulo&apos;, &apos;email&apos;: &apos;kevin.pulo@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45940&quot; title=&quot;Read/write concern jstest command overrides should override explicit RWC that matches the implicit server default&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45940&quot;&gt;&lt;del&gt;SERVER-45940&lt;/del&gt;&lt;/a&gt; allow jstest RWC overrides to override explicit RWC if it&apos;s the implicit server default&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d6e38850d7ea74972aa26092b4b0494360030d91&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d6e38850d7ea74972aa26092b4b0494360030d91&lt;/a&gt;&lt;/p&gt;</comment>
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                                        <issuelink>
            <issuekey id="1103087">SERVER-45651</issuekey>
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