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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-26191] OplogBufferCollection should batch reads from collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-26191</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This is an extension of work done in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25268&quot; title=&quot;OplogBufferCollection should cache last pushed/popped values and tryPop() should not remove documents from collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25268&quot;&gt;&lt;del&gt;SERVER-25268&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="317508">SERVER-26191</key>
            <summary>OplogBufferCollection should batch reads from collection</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="9">Done</resolution>
                                        <assignee username="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                    </labels>
                <created>Tue, 20 Sep 2016 16:04:27 +0000</created>
                <updated>Wed, 22 Nov 2017 16:34:34 +0000</updated>
                            <resolved>Mon, 24 Oct 2016 15:39:27 +0000</resolved>
                                                    <fixVersion>3.4.0-rc2</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1415729" author="xgen-internal-githook" created="Mon, 24 Oct 2016 15:38:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26191&quot; title=&quot;OplogBufferCollection should batch reads from collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26191&quot;&gt;&lt;del&gt;SERVER-26191&lt;/del&gt;&lt;/a&gt; added server parameter for OplogBufferCollection::Options::peekCacheSize to support batch reads with a default of 10,000 items&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b168664ffaf33e079b83da1c3e805f33ba8208d6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b168664ffaf33e079b83da1c3e805f33ba8208d6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1415235" author="xgen-internal-githook" created="Sun, 23 Oct 2016 21:25:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26191&quot; title=&quot;OplogBufferCollection should batch reads from collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26191&quot;&gt;&lt;del&gt;SERVER-26191&lt;/del&gt;&lt;/a&gt; OplogBufferCollection supports batch reads from collection&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ab1ee41ecf1c96ae8b17a2b1da1c7ee9b8c58676&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ab1ee41ecf1c96ae8b17a2b1da1c7ee9b8c58676&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1415047" author="xgen-internal-githook" created="Sat, 22 Oct 2016 14:53:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26191&quot; title=&quot;OplogBufferCollection should batch reads from collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26191&quot;&gt;&lt;del&gt;SERVER-26191&lt;/del&gt;&lt;/a&gt; renamed _peekOneSide to _peek_inlock and changed it to read the oldest entry only.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f50bc8e26d5720f396149286ebb31e8c3c51df4a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f50bc8e26d5720f396149286ebb31e8c3c51df4a&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="303867">SERVER-25268</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="323704">SERVER-26631</issuekey>
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            <issuekey id="446074">SERVER-31584</issuekey>
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