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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-32709] Mobile SE: Index creation takes a long time</title>
                <link>https://jira.mongodb.org/browse/SERVER-32709</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;tt&gt;createIndex&lt;/tt&gt; operation takes a long time on a mongoDB instance started with Mobile storage engine . Due to this some of the jstests in the test suites either timeout or take too long to execute. The following tests have been disabled for now because of this issue:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;jstests/concurrency/fsm_workloads/reindex.js&lt;/li&gt;
	&lt;li&gt;jstests/concurrency/fsm_workloads/reindex_background.js&lt;/li&gt;
	&lt;li&gt;jstests/noPassthrough/indexbg1.js&lt;/li&gt;
	&lt;li&gt;jstests/noPassthrough/indexbg2.js&lt;/li&gt;
	&lt;li&gt;jstests/noPassthroughWithMongod/geo_polygon.js&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;It would be useful to understand the cause for the delay in index creation with Mobile storage engine. This ticket will track the effort in fixing this issue and then re-enabling the above tests.&lt;/p&gt;</description>
                <environment></environment>
        <key id="483164">SERVER-32709</key>
            <summary>Mobile SE: Index creation takes a long time</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="henrik.edin@mongodb.com">Henrik Edin</assignee>
                                    <reporter username="neha.khatri">Neha Khatri</reporter>
                        <labels>
                            <label>SERG</label>
                            <label>nonnyc</label>
                            <label>storage-engines</label>
                    </labels>
                <created>Tue, 16 Jan 2018 00:49:44 +0000</created>
                <updated>Mon, 30 Oct 2023 23:09:18 +0000</updated>
                            <resolved>Fri, 5 Apr 2019 14:49:25 +0000</resolved>
                                                    <fixVersion>4.1.10</fixVersion>
                    <fixVersion>4.0.10</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="2209091" author="luke.chen" created="Thu, 11 Apr 2019 02:08:47 +0000"  >&lt;p&gt;Fixing up fixversion as this ticket was not included as part of 4.0.9 release.&lt;/p&gt;</comment>
                            <comment id="2208482" author="xgen-internal-githook" created="Wed, 10 Apr 2019 17:24:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32709&quot; title=&quot;Mobile SE: Index creation takes a long time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32709&quot;&gt;&lt;del&gt;SERVER-32709&lt;/del&gt;&lt;/a&gt; Improve performance with the mobile storage engine.&lt;/p&gt;

&lt;p&gt;SQLite is configured with synchronous=NORMAL for all sessions.&lt;br/&gt;
Reduced temporary memory allocations when constructing SQL statements.&lt;br/&gt;
Implemented waitUntilDurable when this storage engine is used in mongod only.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 2ee7dcb2bcb4372a49b8584c43bb65caea6212c8)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3873c080388d5148afde90d7e02b2c4f5a297867&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3873c080388d5148afde90d7e02b2c4f5a297867&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2203977" author="xgen-internal-githook" created="Fri, 5 Apr 2019 20:57:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;, &apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32709&quot; title=&quot;Mobile SE: Index creation takes a long time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32709&quot;&gt;&lt;del&gt;SERVER-32709&lt;/del&gt;&lt;/a&gt; Correctly pass cache_size to SQLite.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a05ef93e5a6c691f4b25800a2f3d94e273ab5b9f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a05ef93e5a6c691f4b25800a2f3d94e273ab5b9f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2203394" author="xgen-internal-githook" created="Fri, 5 Apr 2019 15:08:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32709&quot; title=&quot;Mobile SE: Index creation takes a long time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32709&quot;&gt;&lt;del&gt;SERVER-32709&lt;/del&gt;&lt;/a&gt; Fix duplicate error code&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f3232b5169ac56da663520b6ecba95a42c84933a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f3232b5169ac56da663520b6ecba95a42c84933a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2203337" author="xgen-internal-githook" created="Fri, 5 Apr 2019 14:36:55 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32709&quot; title=&quot;Mobile SE: Index creation takes a long time&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32709&quot;&gt;&lt;del&gt;SERVER-32709&lt;/del&gt;&lt;/a&gt; Improve performance with the mobile storage engine.&lt;/p&gt;

&lt;p&gt;SQLite is configured with synchronous=NORMAL for all sessions.&lt;br/&gt;
Reduced temporary memory allocations when constructing SQL statements.&lt;br/&gt;
Implemented waitUntilDurable when this storage engine is used in mongod only.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2ee7dcb2bcb4372a49b8584c43bb65caea6212c8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2ee7dcb2bcb4372a49b8584c43bb65caea6212c8&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="735415">SERVER-40561</issuekey>
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            <issuekey id="728101">SERVER-40444</issuekey>
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            <issuekey id="729100">SERVER-40463</issuekey>
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