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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>
    </build-info>


<item>
            <title>[SERVER-40954] Error message for UnrecoverableRollbackError in FCV 3.6 should recommend downgrading to 3.6</title>
                <link>https://jira.mongodb.org/browse/SERVER-40954</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In a replica set with all nodes on v4.0 binary version and in FCV=3.6, a clean shutdown will cause a node to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0800a6bb4af2ec7e4439a70e58d23c46ffe2381d/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp#L767-L780&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;set its recovery timestamp to 0&lt;/a&gt;. If this happens for a node whose oplog has diverged (i.e. needs to enter rollback), this node won&apos;t be able to complete the rollback since it does not have a stable timestamp to roll back to which is needed for recover-to-timestamp. Furthermore, in order to take a new stable checkpoint, it would have to commit a new majority write, which it shouldn&apos;t be able to do until it completes the rollback. It also shouldn&apos;t be able to upgrade to FCV=4.0 until the node can completes the rollback and replicate new log entries from the primary. The recommended path forward is to downgrade the binary to 3.6 and restart to complete the rollback. We will update the error message with this recommendation.&lt;/p&gt;

&lt;p&gt;Original description:&lt;/p&gt;

&lt;p&gt;In a replica set with all nodes on v4.0 binary version and in FCV=3.6, a clean shutdown will cause a node to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0800a6bb4af2ec7e4439a70e58d23c46ffe2381d/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp#L767-L780&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;set its recovery timestamp to 0&lt;/a&gt;. If this happens for a node whose oplog has diverged (i.e. needs to enter rollback), this node won&apos;t be able to complete the rollback since it does not have a stable timestamp to roll back to which is needed for recover-to-timestamp. Furthermore, in order to take a new stable checkpoint, it would have to commit a new majority write, which it shouldn&apos;t be able to do until it completes the rollback. It also shouldn&apos;t be able to upgrade to FCV=4.0 until the node can completes the rollback and replicate new log entries from the primary. If FCV=3.6 and we encounter this situation, falling back on the rollbackViaFetch algorithm may be the appropriate solution. Another alternative may be to always use rollbackViaRefetch whenever FCV=3.6.&lt;/p&gt;</description>
                <environment></environment>
        <key id="754855">SERVER-40954</key>
            <summary>Error message for UnrecoverableRollbackError in FCV 3.6 should recommend downgrading to 3.6</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="vesselina.ratcheva@mongodb.com">Vesselina Ratcheva</assignee>
                                    <reporter username="dmitry.ryabtsev@mongodb.com">Dmitry Ryabtsev</reporter>
                        <labels>
                    </labels>
                <created>Thu, 2 May 2019 08:10:01 +0000</created>
                <updated>Sun, 29 Oct 2023 22:21:26 +0000</updated>
                            <resolved>Thu, 5 Sep 2019 21:09:44 +0000</resolved>
                                    <version>4.0.9</version>
                                    <fixVersion>4.0.13</fixVersion>
                                    <component>Replication</component>
                                        <votes>1</votes>
                                    <watches>21</watches>
                                                                                                                <comments>
                            <comment id="2409726" author="xgen-internal-githook" created="Thu, 5 Sep 2019 20:52:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;vessy-mongodb&apos;, &apos;email&apos;: &apos;vesselina.ratcheva@mongodb.com&apos;, &apos;name&apos;: &apos;Vesselina Ratcheva&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-40954&quot; title=&quot;Error message for UnrecoverableRollbackError in FCV 3.6 should recommend downgrading to 3.6&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-40954&quot;&gt;&lt;del&gt;SERVER-40954&lt;/del&gt;&lt;/a&gt; Add recommendation to downgrade binary version on unrecoverable rollbacks&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/09cfdda802a4a41c19e3eaa8b2f6667272eab1a8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/09cfdda802a4a41c19e3eaa8b2f6667272eab1a8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2307366" author="judah.schvimer" created="Mon, 1 Jul 2019 18:39:08 +0000"  >&lt;p&gt;The recommended fix when hitting this error in fCV 3.6 is to downgrade the binary version to 3.6, complete the rollback with rollback via refetch and then retry the upgrade. We will improve the error message when there is &quot;No stable timestamp available to recover to&quot; in fCV 3.6 to say to downgrade the binary version.&lt;/p&gt;</comment>
                    </comments>
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                    <name>Depends</name>
                                                                <inwardlinks description="is depended on by">
                                                        </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="918064">DOCS-13014</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="815302">SERVER-41931</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="480305">SERVER-32590</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
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                <attachments>
                            <attachment id="220209" name="upgrade_repl.js" size="991" author="william.schultz@mongodb.com" created="Tue, 11 Jun 2019 20:19:33 +0000"/>
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                                        4 years, 22 weeks, 6 days ago
    
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                            <customfieldvalue>In case this is not documented: if you freshly upgraded to 4.0 but need to roll back, you may be unable to complete the rollback. In this case, you must downgrade the binary version to 3.6 to let the rollback finish, after which you may upgrade again.</customfieldvalue>

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                                <customfieldvalue id="3000">Repl 2019-06-17</customfieldvalue>
    <customfieldvalue id="3028">Repl 2019-07-29</customfieldvalue>
    <customfieldvalue id="3106">Repl 2019-08-12</customfieldvalue>
    <customfieldvalue id="3200">Repl 2019-08-26</customfieldvalue>
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                        <customfieldname>Steps To Reproduce</customfieldname>
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                            <customfieldvalue>&lt;p&gt;I reproduced it with PSA, but we have an ongoing case where it was encountered in PSSSS configuration.&lt;/p&gt;

&lt;p&gt;1. Set up PSA repl set with v3.6 binaries and FCV 3.6&lt;br/&gt;
2. Upgrade to v4.0.9, do not upgrade to FCV 4.0&lt;br/&gt;
3. Suspend one of the data bearing nodes with SIGSTOP&lt;br/&gt;
4. Insert some data into the primary&lt;br/&gt;
5. Suspend the primary&lt;br/&gt;
6. Resume the node we suspended in step 3 (SIGCONT), it should become the primary&lt;br/&gt;
7. Insert some data into the new primary (both insert steps are probably not needed since having noop entries is enough to diverge the timeline)&lt;br/&gt;
8. Shut down and restart the ex-primary. It will crash as:&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;
		&lt;thead&gt;
			&lt;tr id=&quot;syntaxplugin_show&quot;&gt;
		&lt;td  bgcolor=&quot;#f5f5f5&quot; style=&quot;background-color: #f5f5f5 !important; line-height: 1em;&quot;&gt;
			&lt;p style=&quot;margin: 5px 10px; padding: 0; color: #3b73af; cursor: pointer;&quot; onclick=&quot;var tbody = this.parentNode.parentNode.parentNode.parentNode.getElementsByTagName(&apos;tbody&apos;); tbody[tbody.length -1].style.display = &apos;inline&apos;; this.parentNode.parentNode.style.display = &apos;none&apos;; return false;&quot;&gt;Show all&lt;/p&gt;
		&lt;/td&gt;
	&lt;/tr&gt;
		&lt;/thead&gt;
		&lt;tbody  style=&quot;display: none;&quot;&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;  margin-top: 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;2019-05-02T17:51:48.865+1000 F ROLLBACK [rsBackgroundSync] RecoverToStableTimestamp failed.  :: caused by :: UnrecoverableRollbackError: No stable timestamp available to recover to. Initial data timestamp: Timestamp(1556783333, 1), Stable timestamp: Timestamp(0, 0)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync] Rollback summary:&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      start time: 2019-05-02T17:51:48.837+1000&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      end time: 2019-05-02T17:51:48.857+1000&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      sync source: nubuntu:27017&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      rollback data file directory: /data/rs36/rollback/test.t&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      rollback id: 2&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      last optime on branch of history rolled back: { ts: Timestamp(1556783333, 1), t: 4 }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      common point optime: { ts: Timestamp(1556783273, 1), t: 4 }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      last wall clock time on the branch of history rolled back: 2019-05-02T17:48:53.577+1000&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      common point wall clock time: 2019-05-02T17:47:53.575+1000&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      difference in wall clock times: 60 second(s)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      shard identity document rolled back: false&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      config server config version document rolled back: false&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      affected sessions: none&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      affected namespaces: &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]              test.t&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      counts of interesting commands rolled back: &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]              insert: 6&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]              create: 1&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync]      total number of entries rolled back (including no-ops): 11&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I ROLLBACK [rsBackgroundSync] transition to SECONDARY&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.865+1000 I REPL     [rsBackgroundSync] transition to SECONDARY from ROLLBACK&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.866+1000 I REPL     [rsBackgroundSync] Resetting sync source to empty, which was nubuntu:27017&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.866+1000 F REPL     [rsBackgroundSync] Rollback failed with unrecoverable error: UnrecoverableRollbackError: Recover to stable timestamp failed.&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.866+1000 F -        [rsBackgroundSync] Fatal assertion 50666 UnrecoverableRollbackError: Recover to stable timestamp failed. at src/mongo/db/repl/bgsync.cpp 705&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;2019-05-02T17:51:48.866+1000 F -        [rsBackgroundSync] &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;***aborting after fassert() failure&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
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