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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>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-27512] queryable_mmapv1 can encounter larger blocks than the default page size</title>
                <link>https://jira.mongodb.org/browse/SERVER-27512</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;queryable_mmapv1 expects there to be a 1 -&amp;gt; many mapping from pages to blocks. However the pagesize is currently chosen to be 2MB, while some blocks in the backup system (particularly blocks now in S3) are 16MB. The pagesize should be chosen more carefully with respect to the block size.&lt;/p&gt;</description>
                <environment></environment>
        <key id="340946">SERVER-27512</key>
            <summary>queryable_mmapv1 can encounter larger blocks than the default page size</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="9">Done</resolution>
                                        <assignee username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</reporter>
                        <labels>
                    </labels>
                <created>Fri, 23 Dec 2016 17:52:48 +0000</created>
                <updated>Wed, 5 Apr 2017 11:42:11 +0000</updated>
                            <resolved>Mon, 9 Jan 2017 21:20:34 +0000</resolved>
                                    <version>3.4.1</version>
                                    <fixVersion>3.4.2</fixVersion>
                    <fixVersion>3.5.2</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1475024" author="xgen-internal-githook" created="Wed, 11 Jan 2017 21:29:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27512&quot; title=&quot;queryable_mmapv1 can encounter larger blocks than the default page size&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27512&quot;&gt;&lt;del&gt;SERVER-27512&lt;/del&gt;&lt;/a&gt;: Address queryable_mmapv1 cases with large block sizes&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 679f3621fb1c1103904473055c9a67acf097d003)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/f4941c23bb010215492a0064453aa248f2b4f1c1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/f4941c23bb010215492a0064453aa248f2b4f1c1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1474455" author="xgen-internal-githook" created="Wed, 11 Jan 2017 14:28:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27512&quot; title=&quot;queryable_mmapv1 can encounter larger blocks than the default page size&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27512&quot;&gt;&lt;del&gt;SERVER-27512&lt;/del&gt;&lt;/a&gt;: Address queryable_mmapv1 cases with large block sizes&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/679f3621fb1c1103904473055c9a67acf097d003&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/679f3621fb1c1103904473055c9a67acf097d003&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1473863" author="daniel.gottlieb@10gen.com" created="Tue, 10 Jan 2017 19:37:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25712&quot; title=&quot;Enforce the sync source in catchup.js&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25712&quot;&gt;&lt;del&gt;SERVER-25712&lt;/del&gt;&lt;/a&gt;: Address queryable_mmapv1 cases with large block sizes&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 503ae84731efa7bd0ee2f24bf6721acba27b2ac3.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/fbf1e790d86066c1ac544c083c0f23af375c685e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/fbf1e790d86066c1ac544c083c0f23af375c685e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1473007" author="daniel.gottlieb@10gen.com" created="Mon, 9 Jan 2017 21:17:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25712&quot; title=&quot;Enforce the sync source in catchup.js&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25712&quot;&gt;&lt;del&gt;SERVER-25712&lt;/del&gt;&lt;/a&gt;: Address queryable_mmapv1 cases with large block sizes&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/503ae84731efa7bd0ee2f24bf6721acba27b2ac3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/503ae84731efa7bd0ee2f24bf6721acba27b2ac3&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;(Pushed with the wrong number on the commit message)&lt;/p&gt;</comment>
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