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    <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-35138] service_state_machine.cpp should log a backtrace if there&apos;s an uncaught exception</title>
                <link>https://jira.mongodb.org/browse/SERVER-35138</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While the backtrace itself won&apos;t be particular helpful in debugging the failure (as the stack has already been unwound) it will make it so the automated tooling to extract relevant log messages can find the uncaught exception message. The only log message that appears is the following:&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;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;[ReplicaSetFixture:job0:secondary2] 2018-05-20T12:58:19.763+0000 E NETWORK  [conn118] Uncaught std::exception: basic_string::_M_create, terminating&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;&lt;a href=&quot;https://logkeeper.mongodb.org/lobster/build/7b9af1499f010b4d302f9f2e2ec3ebba/all?f=10ReplicaSetFixture%3Ajob0%3Asecondary2&amp;amp;bookmarks=0%2C938783&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://logkeeper.mongodb.org/lobster/build/7b9af1499f010b4d302f9f2e2ec3ebba/all?f=10ReplicaSetFixture%3Ajob0%3Asecondary2&amp;amp;bookmarks=0%2C938783&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;We could likely instead just call &lt;tt&gt;std::terminate()&lt;/tt&gt; inside &lt;a href=&quot;https://github.com/mongodb/mongo/blob/adad00367e75e7c71a781e4610321f7be5d98aa6/src/mongo/transport/service_state_machine.cpp#L452-L455&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the catch-block&lt;/a&gt; as &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.7.9/src/mongo/util/signal_handlers_synchronous.cpp#L184-L233&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;myTerminate()&lt;/tt&gt;&lt;/a&gt; already logs details about the exception as well as a backtrace of where it was caught.&lt;/p&gt;</description>
                <environment></environment>
        <key id="547265">SERVER-35138</key>
            <summary>service_state_machine.cpp should log a backtrace if there&apos;s an uncaught exception</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="jonathan.ma@mongodb.com">Jonathan Ma</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                    </labels>
                <created>Mon, 21 May 2018 21:11:19 +0000</created>
                <updated>Mon, 8 Jan 2024 15:23:14 +0000</updated>
                            <resolved>Thu, 10 Jan 2019 21:10:24 +0000</resolved>
                                                    <fixVersion>4.0.7</fixVersion>
                    <fixVersion>4.1.7</fixVersion>
                                    <component>Networking</component>
                                        <votes>2</votes>
                                    <watches>13</watches>
                                                                                                                <comments>
                            <comment id="2180366" author="xgen-internal-githook" created="Wed, 13 Mar 2019 23:11:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jonathan Ma&apos;, &apos;email&apos;: &apos;jonathan.ma@mongodb.com&apos;, &apos;username&apos;: &apos;thejonathanma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35138&quot; title=&quot;service_state_machine.cpp should log a backtrace if there&amp;#39;s an uncaught exception&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35138&quot;&gt;&lt;del&gt;SERVER-35138&lt;/del&gt;&lt;/a&gt; service_state_machine will log backtrace for uncaught exceptions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit ae66e32d6d4f22e8958d5e0b8aa47a2602ce1210)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e77f1b2475391d2031ee1c8416121c1a40502caa&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e77f1b2475391d2031ee1c8416121c1a40502caa&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2111620" author="xgen-internal-githook" created="Thu, 10 Jan 2019 20:51:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;jonathan.ma@mongodb.com&apos;, &apos;name&apos;: &apos;Jonathan Ma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35138&quot; title=&quot;service_state_machine.cpp should log a backtrace if there&amp;#39;s an uncaught exception&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35138&quot;&gt;&lt;del&gt;SERVER-35138&lt;/del&gt;&lt;/a&gt; service_state_machine will log backtrace for uncaught exceptions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ae66e32d6d4f22e8958d5e0b8aa47a2602ce1210&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ae66e32d6d4f22e8958d5e0b8aa47a2602ce1210&lt;/a&gt;&lt;/p&gt;</comment>
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