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    <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-48328] Remove index key generation error whitelist</title>
                <link>https://jira.mongodb.org/browse/SERVER-48328</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During index builds, we use a &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e44e6b4f3c0b7fbd604a452ac8afc59dda3f54fa/src/mongo/db/index/index_access_method.cpp#L719-L743&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;whilelist&lt;/a&gt; to determine whether an error was a key generation error or not.&lt;/p&gt;

&lt;p&gt;This whitelist was originally created for oplog application on secondaries since we apply operations out of order, but can only safely ignore specific errors. With two-phase index builds, we now ignore key generation errors on all nodes for later constraint checking.&lt;/p&gt;

&lt;p&gt;Two-phase index builds also &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e44e6b4f3c0b7fbd604a452ac8afc59dda3f54fa/src/mongo/db/index_builds_coordinator.cpp#L2037-L2039&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;depend heavily on&lt;/a&gt; this whitelist being correct since an unanticipated error can cause a crash. &lt;/p&gt;

&lt;p&gt;If we assume &lt;b&gt;all&lt;/b&gt; non-interrupt/shutdown exceptions are key generation errors, then we can remove this fragile enumeration of safe errors and be confident no exceptions can be thrown during index builds.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1357479">SERVER-48328</key>
            <summary>Remove index key generation error whitelist</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="vishnu.kaushik@mongodb.com">Vishnu Kaushik</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                            <label>newgrad</label>
                    </labels>
                <created>Wed, 20 May 2020 17:53:03 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:57 +0000</updated>
                            <resolved>Mon, 14 Sep 2020 15:43:03 +0000</resolved>
                                                    <fixVersion>4.8.0</fixVersion>
                    <fixVersion>4.4.13</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4362675" author="xgen-internal-githook" created="Thu, 17 Feb 2022 21:11:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Vishnu Kaushik&apos;, &apos;email&apos;: &apos;vishnu.kaushik@mongodb.com&apos;, &apos;username&apos;: &apos;kauboy26&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48328&quot; title=&quot;Remove index key generation error whitelist&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48328&quot;&gt;&lt;del&gt;SERVER-48328&lt;/del&gt;&lt;/a&gt; remove index key generation error whitelist&lt;/p&gt;

&lt;p&gt;(cherry picked from commit e4b7ca4206b59fe54e0da6cfe3ae03aea8114be6)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c143d2a9dde2f6713a44b41e35a0553d8004ebc7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c143d2a9dde2f6713a44b41e35a0553d8004ebc7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3389176" author="xgen-internal-githook" created="Fri, 11 Sep 2020 20:47:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Vishnu Kaushik&apos;, &apos;email&apos;: &apos;vishnu.kaushik@mongodb.com&apos;, &apos;username&apos;: &apos;kauboy26&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48328&quot; title=&quot;Remove index key generation error whitelist&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48328&quot;&gt;&lt;del&gt;SERVER-48328&lt;/del&gt;&lt;/a&gt; remove index key generation error whitelist&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e4b7ca4206b59fe54e0da6cfe3ae03aea8114be6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e4b7ca4206b59fe54e0da6cfe3ae03aea8114be6&lt;/a&gt;&lt;/p&gt;</comment>
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