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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-4065] thread interruption is disabled in V8 native callback, makes it impossible to kill op</title>
                <link>https://jira.mongodb.org/browse/SERVER-4065</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;drop2.js failing because it&apos;s trying to interrupt op when it&apos;s doing a sleep()&lt;/p&gt;</description>
                <environment></environment>
        <key id="23554">SERVER-4065</key>
            <summary>thread interruption is disabled in V8 native callback, makes it impossible to kill op</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="antoine">Antoine Girbal</assignee>
                                    <reporter username="antoine">Antoine Girbal</reporter>
                        <labels>
                    </labels>
                <created>Wed, 12 Oct 2011 21:24:26 +0000</created>
                <updated>Mon, 11 Jul 2016 18:35:16 +0000</updated>
                            <resolved>Thu, 13 Oct 2011 20:39:33 +0000</resolved>
                                                    <fixVersion>2.1.0</fixVersion>
                                    <component>JavaScript</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="60195" author="auto" created="Thu, 13 Oct 2011 05:04:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;agirbal&apos;, u&apos;name&apos;: u&apos;agirbal&apos;, u&apos;email&apos;: u&apos;antoine@10gen.com&apos;}
&lt;p&gt;Message: - &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4065&quot; title=&quot;thread interruption is disabled in V8 native callback, makes it impossible to kill op&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4065&quot;&gt;&lt;del&gt;SERVER-4065&lt;/del&gt;&lt;/a&gt;: better handling, disable interrupt in callback but mark as interrupted&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a087cc3e72a960f95ce7a297b30cbe51cc31fd12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a087cc3e72a960f95ce7a297b30cbe51cc31fd12&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="60193" author="auto" created="Thu, 13 Oct 2011 05:04:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;agirbal&apos;, u&apos;name&apos;: u&apos;agirbal&apos;, u&apos;email&apos;: u&apos;antoine@10gen.com&apos;}
&lt;p&gt;Message: - &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4065&quot; title=&quot;thread interruption is disabled in V8 native callback, makes it impossible to kill op&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4065&quot;&gt;&lt;del&gt;SERVER-4065&lt;/del&gt;&lt;/a&gt;: thread interruption is disabled in V8 native callback, makes it impossible to kill op&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3e153de2b9e4fa4acf4b1e513a96c0ac0dc2cb84&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3e153de2b9e4fa4acf4b1e513a96c0ac0dc2cb84&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="60172" author="antoine" created="Thu, 13 Oct 2011 02:34:14 +0000"  >&lt;p&gt;when keeping interrupt possible during callback, the downside is that many v8 calls can fail (return empty result) if thread is interrupted.&lt;br/&gt;
One more difficulty is that calls can be nested V8 &amp;gt; C++ &amp;gt; V8 &amp;gt; C++.&lt;br/&gt;
It seems that just the fact that a callback creates a new JS object with a C++ constructor means nested call.&lt;br/&gt;
2 options:&lt;br/&gt;
1. add checks all around the code to check for empty results&lt;br/&gt;
2. find a way to temporarily disable interrupts during a callback, but still record interrupts. This must detect nesting so that nested calls complete.&lt;/p&gt;</comment>
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