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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-42226] Use the maxValidateMBperSec server parameter to throttle collection validation operations</title>
                <link>https://jira.mongodb.org/browse/SERVER-42226</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42224&quot; title=&quot;Add a server parameter maxValidateMBPerSec to specify max validate throughput per validate command in order to limit I/O and CPU usage&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42224&quot;&gt;&lt;del&gt;SERVER-42224&lt;/del&gt;&lt;/a&gt; will have added maxValidateMBperSec as a server parameter and set it up as accessible to the validation command code path.&lt;/p&gt;

&lt;p&gt;This task is to actually start using maxValidateMBperSec to throttle the progress of a collection validation operation. Throttling should &lt;b&gt;only&lt;/b&gt; occur when {background:true} is requested. We should put the thread to sleep after it processes maxValidateMBperSec MBs worth of data, &lt;b&gt;if&lt;/b&gt; it take less than a second to reach maxValidateMBperSec MBs. We should check for interrupt after sleeping.&lt;/p&gt;</description>
                <environment></environment>
        <key id="856090">SERVER-42226</key>
            <summary>Use the maxValidateMBperSec server parameter to throttle collection validation operations</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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.wlodarek@mongodb.com">Gregory Wlodarek</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Fri, 12 Jul 2019 21:42:44 +0000</created>
                <updated>Sun, 29 Oct 2023 22:19:03 +0000</updated>
                            <resolved>Fri, 23 Aug 2019 00:55:36 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2384168" author="gregory.wlodarek" created="Fri, 23 Aug 2019 13:22:38 +0000"  >&lt;p&gt;After discussing the unit test flakiness on Windows machines regarding timing with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=milkie&quot; class=&quot;user-hover&quot; rel=&quot;milkie&quot;&gt;milkie&lt;/a&gt;, we&apos;re going to disable the throttle cursor unit test temporarily and file a ticket to fix the issues and to turn it back on.&lt;/p&gt;</comment>
                            <comment id="2384164" author="xgen-internal-githook" created="Fri, 23 Aug 2019 13:20:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42226&quot; title=&quot;Use the maxValidateMBperSec server parameter to throttle collection validation operations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42226&quot;&gt;&lt;del&gt;SERVER-42226&lt;/del&gt;&lt;/a&gt; Disable the throttle cursor unittest&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2fd30c80a014077844e6a4ddb926e3ebef4868a0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2fd30c80a014077844e6a4ddb926e3ebef4868a0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2383624" author="xgen-internal-githook" created="Fri, 23 Aug 2019 00:55:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42226&quot; title=&quot;Use the maxValidateMBperSec server parameter to throttle collection validation operations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42226&quot;&gt;&lt;del&gt;SERVER-42226&lt;/del&gt;&lt;/a&gt; Use the maxValidateMBperSec server parameter to throttle collection validation operations&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/46522393008ad96af478aa1dd5122ea6e4960889&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/46522393008ad96af478aa1dd5122ea6e4960889&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2383620" author="xgen-internal-githook" created="Fri, 23 Aug 2019 00:39:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;GWlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;name&apos;: &apos;Gregory Wlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42226&quot; title=&quot;Use the maxValidateMBperSec server parameter to throttle collection validation operations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42226&quot;&gt;&lt;del&gt;SERVER-42226&lt;/del&gt;&lt;/a&gt; Clarify that the &apos;maxValidateMBperSec&apos; server parameter is only used when the validate command is running in the background.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/98ae88a36c731e79ed1a299b954c0dfafd7b096c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/98ae88a36c731e79ed1a299b954c0dfafd7b096c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2383619" author="xgen-internal-githook" created="Fri, 23 Aug 2019 00:39:05 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;GWlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;name&apos;: &apos;Gregory Wlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42226&quot; title=&quot;Use the maxValidateMBperSec server parameter to throttle collection validation operations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42226&quot;&gt;&lt;del&gt;SERVER-42226&lt;/del&gt;&lt;/a&gt; Add a data throttle mechanism for cursors to use that allows them to specify the maximum throughput per second in order to limit I/O and CPU usage.&lt;/p&gt;

&lt;p&gt;Additionally, cursor wrappers for the validate command have been implemented to use the data throttle mechanism.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8f34015c725e56eb5550c7ae42010de85ad3dbf2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8f34015c725e56eb5550c7ae42010de85ad3dbf2&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="871935">SERVER-42357</issuekey>
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