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    <title>MongoDB Jira</title>
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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-38762] ephemeralForTest should support transactions</title>
                <link>https://jira.mongodb.org/browse/SERVER-38762</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I launched a 4.0 replica set with &lt;tt&gt;--storageEngine ephemeralForTest&lt;/tt&gt; argument. The resulting replica set is much faster at running my tests, however it failed thusly on transactions tests:&lt;/p&gt;

&lt;p/&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;       Transaction numbers are only allowed on storage engines that support document-level locking (20)&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;This ticket is a request to support document level locking in ephemeralfortest storage engine, in order for it to be usable for transactions testing.&lt;/p&gt;</description>
                <environment></environment>
        <key id="660583">SERVER-38762</key>
            <summary>ephemeralForTest should support transactions</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="oleg.pudeyev@mongodb.com">Oleg Pudeyev</reporter>
                        <labels>
                            <label>EFT</label>
                    </labels>
                <created>Sat, 22 Dec 2018 03:35:22 +0000</created>
                <updated>Tue, 6 Dec 2022 03:09:46 +0000</updated>
                            <resolved>Mon, 26 Apr 2021 18:33:47 +0000</resolved>
                                    <version>4.0.0</version>
                                                    <component>Storage</component>
                                        <votes>1</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="3739415" author="connie.chen" created="Mon, 26 Apr 2021 18:33:47 +0000"  >&lt;p&gt;We have no plans to support users using ephemeralForTest.&lt;/p&gt;</comment>
                            <comment id="3204204" author="geert.bosch" created="Wed, 10 Jun 2020 22:49:45 +0000"  >&lt;p&gt;The ephemeralForTest storage engine is mainly intended for testing the database itself, most importantly in unit tests. If you want a fully functional version of MongoDB for your own application testing purposes and would like to avoid unnecessary I/O, you could run with WIredTIger on a memory-based filesystem, such as tmpfs.&lt;/p&gt;</comment>
                            <comment id="3193724" author="luispais61@gmail.com" created="Sat, 6 Jun 2020 14:24:39 +0000"  >&lt;p&gt;Is there any progress for this ?&lt;br/&gt;
 This is a real requirement for testing.&lt;/p&gt;</comment>
                            <comment id="2104552" author="oleg.pudeyev" created="Thu, 3 Jan 2019 18:19:43 +0000"  >&lt;p&gt;Instead of using the ephemeral storage engine I am now running mongodb on a zram partition. I don&apos;t know the relative performances of these but mongodb on zram is 2x faster than mongodb on nvme ssd.&lt;/p&gt;</comment>
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