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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-30266] ShardServerCatalogCacheLoader may drop collections causing failures in test validation</title>
                <link>https://jira.mongodb.org/browse/SERVER-30266</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;validateCollections (of validate_collections.js) calls listCollections and then iteratively calls validate collection on them. However, ShardServerCatalogCacheLoader can drop the collection in between the listCollection and validate calls&lt;/p&gt;</description>
                <environment></environment>
        <key id="406990">SERVER-30266</key>
            <summary>ShardServerCatalogCacheLoader may drop collections causing failures in test validation</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="eddie.louie">Eddie Louie</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Fri, 21 Jul 2017 19:56:38 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:01 +0000</updated>
                            <resolved>Sat, 12 Aug 2017 15:33:02 +0000</resolved>
                                    <version>3.5.10</version>
                                    <fixVersion>3.5.12</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1646905" author="xgen-internal-githook" created="Sat, 12 Aug 2017 15:28:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Eddie Louie&apos;, &apos;username&apos;: &apos;elouie99&apos;, &apos;email&apos;: &apos;eddie.louie@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30266&quot; title=&quot;ShardServerCatalogCacheLoader may drop collections causing failures in test validation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30266&quot;&gt;&lt;del&gt;SERVER-30266&lt;/del&gt;&lt;/a&gt; Enable TestData.skipValidationOnNamespaceNotFound by default to bypass collection&lt;br/&gt;
validation error due to namespace not found for sharding and replicaset tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2b4bac239373acec5c0388aac8fe584dbf611eca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2b4bac239373acec5c0388aac8fe584dbf611eca&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1646152" author="max.hirschhorn@10gen.com" created="Fri, 11 Aug 2017 13:58:03 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=eddie.louie&quot; class=&quot;user-hover&quot; rel=&quot;eddie.louie&quot;&gt;eddie.louie&lt;/a&gt;, given that running the validateCollections hook against replica sets and sharded clusters represents the more common case, I think we should flip the default value of &lt;tt&gt;TestData.skipValidationOnNamespaceNotFound&lt;/tt&gt; to true (when the option isn&apos;t being specified at all). One way to do this would be to change &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.5.11/src/mongo/shell/utils.js#L234&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;jsTest.options().skipValidationOnNamespaceNotFound&lt;/tt&gt;&lt;/a&gt; return &lt;tt&gt;TestData.hasOwnProperty(&quot;skipValidationOnNamespaceNotFound&quot;) ? TestData.skipValidationOnNamespaceNotFound : true&lt;/tt&gt;.&lt;/p&gt;

&lt;p&gt;So that we don&apos;t lose out on all coverage of checking that the &quot;listCollections&quot; command response is up-to-date with the contents of the catalog, I&apos;d recommend setting &lt;tt&gt;TestData.skipValidationOnNamespaceNotFound&lt;/tt&gt; &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.5.11/buildscripts/resmokeconfig/suites/jstestfuzz.yml#L12-L16&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;as part of the &lt;tt&gt;ValidateCollections&lt;/tt&gt;&apos;s &lt;tt&gt;shell_options.global_vars&lt;/tt&gt; section&lt;/a&gt; explicitly to false in the following YAML test suites.&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;
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					&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;$ rg -l -g &apos;*core*&apos; MongoDFixture buildscripts/resmokeconfig/&lt;/span&gt;&lt;/pre&gt;
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						&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;buildscripts/resmokeconfig/suites/core_auth.yml&lt;/span&gt;&lt;/pre&gt;
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					&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;buildscripts/resmokeconfig/suites/core_minimum_batch_size.yml&lt;/span&gt;&lt;/pre&gt;
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					&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;buildscripts/resmokeconfig/suites/core.yml&lt;/span&gt;&lt;/pre&gt;
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					&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;buildscripts/resmokeconfig/suites/core_ese.yml&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;buildscripts/resmokeconfig/suites/core_op_query.yml&lt;/span&gt;&lt;/pre&gt;
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						&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;buildscripts/resmokeconfig/suites/dur_jscore_passthrough.yml&lt;/span&gt;&lt;/pre&gt;
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						&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;buildscripts/resmokeconfig/suites/session_jscore_passthrough.yml&lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;I&apos;d also recommend doing the same for &lt;tt&gt;concurrency.yml&lt;/tt&gt; and &lt;tt&gt;jstestfuzz.yml&lt;/tt&gt;.&lt;/p&gt;</comment>
                            <comment id="1631344" author="renctan" created="Tue, 25 Jul 2017 17:04:27 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=max.hirschhorn&quot; class=&quot;user-hover&quot; rel=&quot;max.hirschhorn&quot;&gt;max.hirschhorn&lt;/a&gt; Oh, you&apos;re right. I meant to say skipValidationOnNamespaceNotFound. Copy and pasted the wrong variable. As for why I think this should also be applied to replication suites is because secondaries can still be replicating when the test is about to shutdown. That means that there is a chance that it will hit the same issue of trying to call validate on collection that was just dropped.&lt;/p&gt;</comment>
                            <comment id="1629132" author="max.hirschhorn@10gen.com" created="Fri, 21 Jul 2017 20:58:11 +0000"  >&lt;blockquote&gt;
&lt;p&gt;It looks like we need to set skipValidationOnInvalidViewDefinitions to true for all suites that has sharding/replication after we hooked override_methods/validate_collections_on_shutdown.js to tests.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt;, given that the &lt;tt&gt;ShardServerCatalogCacheLoader&lt;/tt&gt; is dropping the collection, I think we&apos;d want to set &lt;tt&gt;skipValidationOnNamespaceNotFound&lt;/tt&gt; to true instead. Also, does &quot;sharding/replication&quot; mean that it the test is using replica-set shards, or what is the reason that replication is involved?&lt;/p&gt;</comment>
                            <comment id="1629076" author="renctan" created="Fri, 21 Jul 2017 20:09:11 +0000"  >&lt;p&gt;It looks like we need to set skipValidationOnInvalidViewDefinitions to true for all suites that has sharding/replication after we hooked override_methods/validate_collections_on_shutdown.js to tests. &lt;/p&gt;</comment>
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