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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-53679] No-op for filling in destined recipient for insert oplog entries adds overhead on shardsvrs not running resharding</title>
                <link>https://jira.mongodb.org/browse/SERVER-53679</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Splitting this off from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53678&quot; title=&quot;No-op for filling in destined recipient for insert oplog entries adds overhead on non-shardsvrs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53678&quot;&gt;&lt;del&gt;SERVER-53678&lt;/del&gt;&lt;/a&gt; because the change is more involved.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/54e87285f802a49456c02c80cb0ddb0fbb54c88a/src/mongo/db/s/resharding_util.cpp#L493-L498&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;getDestinedRecipient()&lt;/a&gt; is called by OpObserverImpl for all write operations and returns boost::none when there isn&apos;t an ongoing resharding operation. Making it so CollectionShardingState::get() and CollectionShardingState::getCollectionDescription() are only called once for each OpObserverImpl::onInserts() call (all of the inserts are to the same collection) would likely address this performance regression. It may be worth noting that &lt;a href=&quot;https://github.com/mongodb/mongo/blob/54e87285f802a49456c02c80cb0ddb0fbb54c88a/src/mongo/db/op_observer_impl.cpp#L498-L500&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;OpObserverShardingImpl::shardObserveInsertOp() calls CollectionShardingRuntime::get() once per document being inserted too&lt;/a&gt; so addressing both interfaces could be a net performance win.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1585146">SERVER-53679</key>
            <summary>No-op for filling in destined recipient for insert oplog entries adds overhead on shardsvrs not running resharding</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="janna.golden@mongodb.com">Janna Golden</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>PM-234-M3</label>
                            <label>PM-234-T-oplog-fetch</label>
                    </labels>
                <created>Sat, 9 Jan 2021 18:42:53 +0000</created>
                <updated>Sun, 29 Oct 2023 21:58:59 +0000</updated>
                            <resolved>Mon, 22 Mar 2021 21:36:47 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3677832" author="xgen-internal-githook" created="Mon, 22 Mar 2021 21:35:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jannaerin&apos;, &apos;email&apos;: &apos;golden.janna@gmail.com&apos;, &apos;username&apos;: &apos;jannaerin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53679&quot; title=&quot;No-op for filling in destined recipient for insert oplog entries adds overhead on shardsvrs not running resharding&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53679&quot;&gt;&lt;del&gt;SERVER-53679&lt;/del&gt;&lt;/a&gt; No-op for filling in destined recipient for insert oplog entries adds overhead on shardsvrs not running resharding&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f25c2c9cfbb0e4ae20cd080b3b79a505308db175&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f25c2c9cfbb0e4ae20cd080b3b79a505308db175&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1834117">SERVER-58918</issuekey>
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            <issuekey id="2308745">SERVER-75787</issuekey>
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