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    <link>https://jira.mongodb.org</link>
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<item>
            <title>[SERVER-35964] Delete UBSan concurrency_replication* tasks</title>
                <link>https://jira.mongodb.org/browse/SERVER-35964</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;concurrency_replication* suites have high memory usage on UBSan, so we run them differently for now while the underlying cause is still being investigated&lt;/p&gt;</description>
                <environment></environment>
        <key id="568132">SERVER-35964</key>
            <summary>Delete UBSan concurrency_replication* tasks</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="13201">Fixed</resolution>
                                        <assignee username="mikhail.shchatko@mongodb.com">Mikhail Shchatko</assignee>
                                    <reporter username="robert.guo@mongodb.com">Robert Guo</reporter>
                        <labels>
                            <label>open_todo_in_code</label>
                            <label>tig-concurrency</label>
                    </labels>
                <created>Thu, 5 Jul 2018 15:10:48 +0000</created>
                <updated>Mon, 1 Jan 2024 16:49:00 +0000</updated>
                            <resolved>Thu, 21 Dec 2023 09:54:59 +0000</resolved>
                                    <version>4.1.1</version>
                                    <fixVersion>7.3.0-rc0</fixVersion>
                                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5965205" author="xgen-internal-githook" created="Thu, 21 Dec 2023 09:31:39 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Mikhail Shchatko&apos;, &apos;email&apos;: &apos;mikhail.shchatko@mongodb.com&apos;, &apos;username&apos;: &apos;MikhailShchatko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35964&quot; title=&quot;Delete UBSan concurrency_replication* tasks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35964&quot;&gt;&lt;del&gt;SERVER-35964&lt;/del&gt;&lt;/a&gt; Delete UBSan concurrency_replication* tasks (#17716)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 39fb7ee8fb6ecb7e5a6d6252a41c5d3a410477f1&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/38a98af97aa04a31f5fda75d9f6c570f12d84026&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/38a98af97aa04a31f5fda75d9f6c570f12d84026&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4539958" author="steven.vannelli" created="Tue, 10 May 2022 21:31:20 +0000"  >&lt;p&gt;Moving this ticket to the Backlog and removing the &quot;Backlog&quot; fixVersion as per our latest policy for using fixVersions. &lt;/p&gt;</comment>
                            <comment id="2161594" author="max.hirschhorn@10gen.com" created="Mon, 25 Feb 2019 15:46:52 +0000"  >&lt;blockquote&gt;
&lt;p&gt;Max Hirschhorn is the relation we&apos;ve seen between the system allocator and memory usage sufficient to say we&apos;ve &quot;understood&quot; the cause? If so, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26300&quot; title=&quot;Allow building with both sanitizers and tcmalloc, when allowed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26300&quot;&gt;&lt;del&gt;SERVER-26300&lt;/del&gt;&lt;/a&gt; has been pushed which may mean this is ready for a look.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=daniel.gottlieb&quot; class=&quot;user-hover&quot; rel=&quot;daniel.gottlieb&quot;&gt;daniel.gottlieb&lt;/a&gt;, I think we can see whether the behavior is also observed when using &lt;tt&gt;&amp;#45;&amp;#45;sanitize=undefined &amp;#45;&amp;#45;allocator=tcmalloc&lt;/tt&gt;, and if so, then set &lt;tt&gt;heapProfilingEnable=1&lt;/tt&gt; to see where the allocations are come from that don&apos;t appear to released until the process exits.&lt;/p&gt;</comment>
                            <comment id="2161568" author="daniel.gottlieb@10gen.com" created="Mon, 25 Feb 2019 15:41:06 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=max.hirschhorn&quot; class=&quot;user-hover&quot; rel=&quot;max.hirschhorn&quot;&gt;max.hirschhorn&lt;/a&gt; is the relation we&apos;ve seen between the system allocator and memory usage sufficient to say we&apos;ve &quot;understood&quot; the cause? If so, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26300&quot; title=&quot;Allow building with both sanitizers and tcmalloc, when allowed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26300&quot;&gt;&lt;del&gt;SERVER-26300&lt;/del&gt;&lt;/a&gt; has been pushed which may mean this is ready for a look.&lt;/p&gt;</comment>
                            <comment id="2047753" author="max.hirschhorn@10gen.com" created="Wed, 31 Oct 2018 17:24:38 +0000"  >&lt;blockquote&gt;
&lt;p&gt;Does this ticket still need to be in investigating status? What do we need to figure out to schedule it?&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=april.schoffer&quot; class=&quot;user-hover&quot; rel=&quot;april.schoffer&quot;&gt;april.schoffer&lt;/a&gt;, we need to figure out the root cause behind the memory pressure when running with UBSan (undefined behavior sanitizer) enabled. The work that has been done on this ticket was to stop the bleeding in the linked BF ticket, but we need to understand the actual problem in order to revert those changes.&lt;/p&gt;</comment>
                            <comment id="2047637" author="april.schoffer" created="Wed, 31 Oct 2018 16:21:26 +0000"  >&lt;p&gt;Does this ticket still need to be in investigating status? What do we need to figure out to schedule it?&lt;/p&gt;</comment>
                            <comment id="1995292" author="max.hirschhorn@10gen.com" created="Thu, 6 Sep 2018 15:48:22 +0000"  >&lt;blockquote&gt;
&lt;p&gt;Do you want to file a separate ticket for blacklisting that suite?&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;No - I wasn&apos;t sure if it would give a clue as to where the memory pressure is coming from.&lt;/p&gt;</comment>
                            <comment id="1995047" author="robert.guo" created="Thu, 6 Sep 2018 13:56:24 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=max.hirschhorn&quot; class=&quot;user-hover&quot; rel=&quot;max.hirschhorn&quot;&gt;max.hirschhorn&lt;/a&gt; Nope, that was an oversight as the simultaneous suite didn&apos;t fail in the BF ticket. Do you want to file a separate ticket for blacklisting that suite?&lt;/p&gt;</comment>
                            <comment id="1994647" author="max.hirschhorn@10gen.com" created="Thu, 6 Sep 2018 03:26:10 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=robert.guo&quot; class=&quot;user-hover&quot; rel=&quot;robert.guo&quot;&gt;robert.guo&lt;/a&gt;, I forget - did you already look into why the &lt;tt&gt;concurrency_simultaneous_replication&lt;/tt&gt; task doesn&apos;t have this issue on the UBSan builder?&lt;/p&gt;</comment>
                            <comment id="1993370" author="max.hirschhorn@10gen.com" created="Wed, 5 Sep 2018 04:18:39 +0000"  >&lt;p&gt;The &lt;tt&gt;concurrency_replication_multi_stmt_txn_ubsan.yml&lt;/tt&gt; test suite introduced by the changes from &lt;a href=&quot;https://github.com/mongodb/mongo/commit/806b9c32dff674b72110f2acd8604e950afab102&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;806b9c3&lt;/a&gt; as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35037&quot; title=&quot;Create new concurrency suite that runs consecutive operations inside of a single transaction&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35037&quot;&gt;&lt;del&gt;SERVER-35037&lt;/del&gt;&lt;/a&gt; should also be reverted once the memory pressure issue is understood and fixed.&lt;/p&gt;</comment>
                            <comment id="1944525" author="max.hirschhorn@10gen.com" created="Wed, 11 Jul 2018 16:42:23 +0000"  >&lt;p&gt;Bumping this out far into the future. It&apos;s something we should definitely continue to look into but isn&apos;t the most pressing thing now that the UBSan builder has returned to being green.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://evergreen.mongodb.com/build/mongodb_mongo_master_ubuntu1604_debug_ubsan_80c7c825a44cf99b17e81f4233445c7ab1927706_18_07_11_01_45_09&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://evergreen.mongodb.com/build/mongodb_mongo_master_ubuntu1604_debug_ubsan_80c7c825a44cf99b17e81f4233445c7ab1927706_18_07_11_01_45_09&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1941052" author="xgen-internal-githook" created="Fri, 6 Jul 2018 20:32:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;guoyr&apos;, &apos;name&apos;: &apos;Robert Guo&apos;, &apos;email&apos;: &apos;robert.guo@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35964&quot; title=&quot;Delete UBSan concurrency_replication* tasks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35964&quot;&gt;&lt;del&gt;SERVER-35964&lt;/del&gt;&lt;/a&gt; create UBSan concurrency_replication* tasks&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a6e2c10af2dcfa862c6afa0fb1504a5d2b092d09)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a73913de26efe8e7b15d7d058ee8bccb6534a7c6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a73913de26efe8e7b15d7d058ee8bccb6534a7c6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1940149" author="xgen-internal-githook" created="Thu, 5 Jul 2018 23:31:43 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;guoyr&apos;, &apos;name&apos;: &apos;Robert Guo&apos;, &apos;email&apos;: &apos;robert.guo@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35964&quot; title=&quot;Delete UBSan concurrency_replication* tasks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35964&quot;&gt;&lt;del&gt;SERVER-35964&lt;/del&gt;&lt;/a&gt; create UBSan concurrency_replication* tasks&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a6e2c10af2dcfa862c6afa0fb1504a5d2b092d09&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a6e2c10af2dcfa862c6afa0fb1504a5d2b092d09&lt;/a&gt;&lt;/p&gt;</comment>
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