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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-65262] Expand usage of WT numerical timestamp API</title>
                <link>https://jira.mongodb.org/browse/SERVER-65262</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-64797&quot; title=&quot;Use WT&amp;#39;s new numerical timestamp API&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-64797&quot;&gt;&lt;del&gt;SERVER-64797&lt;/del&gt;&lt;/a&gt;, we converted our usages of &lt;tt&gt;timestamp_transaction&lt;/tt&gt; to &lt;tt&gt;timestamp_transaction_uint&lt;/tt&gt;. However, for &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fbee74f86aff6d7c3110a757b951d575b34cc921/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp#L453-L486&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;instances where we use &lt;tt&gt;commit_transaction&lt;/tt&gt;&lt;/a&gt; (for example on secondaries), we&apos;re still serializing the timestamps into a string. We should try to avoid the serialization for this case as well.&lt;/p&gt;

&lt;p&gt;One option is to call &lt;tt&gt;timestamp_transaction_uint&lt;/tt&gt; twice before &lt;tt&gt;commit_transaction&lt;/tt&gt;, something like:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&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;   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;s-&amp;gt;timestamp_transaction(s, &quot;durable_timestamp=2&quot;);&lt;/span&gt;&lt;/pre&gt;
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					&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;s-&amp;gt;commit_transaction(s, nullptr);&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;A potential downside is that there may be some extra overhead from this approach, since the timestamps will be validated twice: once when set and once when committing.&lt;/p&gt;

&lt;p&gt;Another option is to look into adding a new interface from the WT side for this purpose.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2017057">SERVER-65262</key>
            <summary>Expand usage of WT numerical timestamp API</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="gregory.noma@mongodb.com">Gregory Noma</assignee>
                                    <reporter username="gregory.noma@mongodb.com">Gregory Noma</reporter>
                        <labels>
                    </labels>
                <created>Tue, 5 Apr 2022 14:29:59 +0000</created>
                <updated>Sun, 29 Oct 2023 21:40:00 +0000</updated>
                            <resolved>Tue, 3 May 2022 13:52:56 +0000</resolved>
                                                    <fixVersion>6.0.1</fixVersion>
                    <fixVersion>4.4.16</fixVersion>
                    <fixVersion>5.0.11</fixVersion>
                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4705380" author="xgen-internal-githook" created="Tue, 26 Jul 2022 14:12:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65262&quot; title=&quot;Expand usage of WT numerical timestamp API&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65262&quot;&gt;&lt;del&gt;SERVER-65262&lt;/del&gt;&lt;/a&gt; Use `timestamp_transaction_uint` for `commit_transaction`&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 497bbb6faf83673f226a34988e0d75ad62e2020d)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/254925ef996e437cd6324e6a2e042d52d4b3761b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/254925ef996e437cd6324e6a2e042d52d4b3761b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4703442" author="xgen-internal-githook" created="Mon, 25 Jul 2022 20:01:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65262&quot; title=&quot;Expand usage of WT numerical timestamp API&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65262&quot;&gt;&lt;del&gt;SERVER-65262&lt;/del&gt;&lt;/a&gt; Use `timestamp_transaction_uint` for `commit_transaction`&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 497bbb6faf83673f226a34988e0d75ad62e2020d)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b019f71606e56b74dac2523bfb649e7e7eaffbe0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b019f71606e56b74dac2523bfb649e7e7eaffbe0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4703015" author="xgen-internal-githook" created="Mon, 25 Jul 2022 18:14:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65262&quot; title=&quot;Expand usage of WT numerical timestamp API&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65262&quot;&gt;&lt;del&gt;SERVER-65262&lt;/del&gt;&lt;/a&gt; Use `timestamp_transaction_uint` for `commit_transaction`&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 497bbb6faf83673f226a34988e0d75ad62e2020d)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a4241e43da416bed4e3d7aec9a9a0a94dd6d5ec8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a4241e43da416bed4e3d7aec9a9a0a94dd6d5ec8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4522420" author="xgen-internal-githook" created="Tue, 3 May 2022 13:52:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65262&quot; title=&quot;Expand usage of WT numerical timestamp API&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65262&quot;&gt;&lt;del&gt;SERVER-65262&lt;/del&gt;&lt;/a&gt; Use `timestamp_transaction_uint` for `commit_transaction`&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/497bbb6faf83673f226a34988e0d75ad62e2020d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/497bbb6faf83673f226a34988e0d75ad62e2020d&lt;/a&gt;&lt;/p&gt;</comment>
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