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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-53187] Structured log improvements to split_vector/chunk_splitter lines 22107 and 21908</title>
                <link>https://jira.mongodb.org/browse/SERVER-53187</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Log line &lt;a href=&quot;https://github.com/mongodb/mongo/blob/bcab0c7e1c1b2e1516d06d23233fea9a425b99f7/src/mongo/db/s/split_vector.cpp#L129-L134&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;22107&lt;/a&gt; (&quot;Requested split points lookup&quot;) logs dehydrated &lt;tt&gt;minKey&lt;/tt&gt; and &lt;tt&gt;maxKey&lt;/tt&gt; attributes as structured data, which for compound shard keys could present the same parsing difficulties for duplicate key names discussed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50432&quot; title=&quot;In at least one instance (4615603), log index keys as strings instead of deflated JSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50432&quot;&gt;&lt;del&gt;SERVER-50432&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;An operationally related log line, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a2fb8664bfc09a7b970f5de8188b4478ff64fc23/src/mongo/db/s/chunk_splitter.cpp#L403-L414&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;21908&lt;/a&gt; (&quot;autpsplitted chunk&quot;) does have a readable, hydrated chunk range, but it&apos;s within a single semi-structured &lt;tt&gt;chunk&lt;/tt&gt; string that includes shard, lastmod, and a hydrated chunk key range (this seems to be from chunk.toString().&lt;/p&gt;

&lt;p&gt;I think that ideally we would have the best of both worlds in each of these lines, structured data AND a hydrated key range.&lt;/p&gt;

&lt;p&gt;To provide a specific request as a strawperson:&lt;/p&gt;

&lt;p&gt;1) In 22107, hydrate minKey and maxKey values&lt;br/&gt;
2) In 21908, replace the &lt;tt&gt;chunk&lt;/tt&gt; attribute with separate &lt;tt&gt;lastmod&lt;/tt&gt; and hydrated &lt;tt&gt;minKey&lt;/tt&gt;, and &lt;tt&gt;maxKey&lt;/tt&gt; attributes (omitting &lt;tt&gt;shard&lt;/tt&gt; given that autosplitting is now local to the node)&lt;/p&gt;</description>
                <environment></environment>
        <key id="1557466">SERVER-53187</key>
            <summary>Structured log improvements to split_vector/chunk_splitter lines 22107 and 21908</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="paolo.polato@mongodb.com">Paolo Polato</assignee>
                                    <reporter username="eric.sedor@mongodb.com">Eric Sedor</reporter>
                        <labels>
                            <label>neweng</label>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Wed, 2 Dec 2020 19:46:42 +0000</created>
                <updated>Sun, 29 Oct 2023 21:59:50 +0000</updated>
                            <resolved>Thu, 3 Jun 2021 15:42:27 +0000</resolved>
                                    <version>4.4.2</version>
                                    <fixVersion>4.4.7</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4108321" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 19:03:45 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3866035" author="xgen-internal-githook" created="Tue, 8 Jun 2021 13:59:34 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Paolo Polato&apos;, &apos;email&apos;: &apos;paolo.polato@mongodb.com&apos;, &apos;username&apos;: &apos;ppolato&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53187&quot; title=&quot;Structured log improvements to split_vector/chunk_splitter lines 22107 and 21908&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53187&quot;&gt;&lt;del&gt;SERVER-53187&lt;/del&gt;&lt;/a&gt; Fix format in autosplit log messages&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 02f0f34d9ab3d1449bad869aabdd478a5de0791d)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1544e5b6f2fea876857db0685985374a859325a1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1544e5b6f2fea876857db0685985374a859325a1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3857620" author="xgen-internal-githook" created="Thu, 3 Jun 2021 15:30:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Paolo Polato&apos;, &apos;email&apos;: &apos;paolo.polato@mongodb.com&apos;, &apos;username&apos;: &apos;ppolato&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53187&quot; title=&quot;Structured log improvements to split_vector/chunk_splitter lines 22107 and 21908&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53187&quot;&gt;&lt;del&gt;SERVER-53187&lt;/del&gt;&lt;/a&gt; Fix format in autosplit log messages&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/02f0f34d9ab3d1449bad869aabdd478a5de0791d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/02f0f34d9ab3d1449bad869aabdd478a5de0791d&lt;/a&gt;&lt;/p&gt;</comment>
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