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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-77373] Use OpStateAccumulator&apos;s to cache common state</title>
                <link>https://jira.mongodb.org/browse/SERVER-77373</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;OpObservers independently recompute and lookup global state. Like &lt;tt&gt;inRecoveryMode&lt;/tt&gt; which requires several calls to &lt;tt&gt;ReplicationCoordinator&lt;/tt&gt;. The onUpdate chain computes this state at least 4 times to filter events.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Currently the OpStateAccumulators are implemented post-7.0 (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-76369&quot; title=&quot;Accumulate state among early OpObservers&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-76369&quot;&gt;&lt;del&gt;SERVER-76369&lt;/del&gt;&lt;/a&gt;) in a handful of methods (broadly speaking, the CRUD methods) that functionally require downstream OpObservers that observe the opTime allocated by OpObserverImpl.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;This ticket would extend the accumulators to be used for performance improvements on top of its existing purpose of functionally breaking dependencies.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2347276">SERVER-77373</key>
            <summary>Use OpStateAccumulator&apos;s to cache common state</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="matt.kneiser@mongodb.com">Matt Kneiser</reporter>
                        <labels>
                            <label>former-storex-namer</label>
                    </labels>
                <created>Mon, 22 May 2023 18:30:57 +0000</created>
                <updated>Thu, 26 Oct 2023 12:51:52 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>4</watches>
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            <issuekey id="2338676">SERVER-77057</issuekey>
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            <issuekey id="2347007">SERVER-77364</issuekey>
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