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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-15931] Repeated &quot;[ReplicationExecutor] could not find member to sync from&quot; in healthy replica set</title>
                <link>https://jira.mongodb.org/browse/SERVER-15931</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While working on &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14809&quot; title=&quot;crash in replicaset when running resync while there&amp;#39;s no primary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14809&quot;&gt;&lt;del&gt;SERVER-14809&lt;/del&gt;&lt;/a&gt; I saw repeated messages like this in the logs:&lt;/p&gt;
&lt;p/&gt;
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&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;tbody &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;2014-11-03T16:18:24.424-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&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;2014-11-03T16:18:25.424-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&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;2014-11-03T16:18:26.425-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;2014-11-03T16:18:27.425-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;2014-11-03T16:18:28.425-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;2014-11-03T16:18:29.425-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&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;   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;2014-11-03T16:18:30.425-0500 I REPLSETS [ReplicationExecutor] could not find member to sync from&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;These messages just add noise, but would be nice to fix them at some point.&lt;/p&gt;</description>
                <environment></environment>
        <key id="167134">SERVER-15931</key>
            <summary>Repeated &quot;[ReplicationExecutor] could not find member to sync from&quot; in healthy replica set</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="matt.dannenberg">Matt Dannenberg</assignee>
                                    <reporter username="ramon.fernandez@mongodb.com">Ramon Fernandez Marina</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Nov 2014 00:05:15 +0000</created>
                <updated>Mon, 24 Nov 2014 15:00:09 +0000</updated>
                            <resolved>Thu, 13 Nov 2014 17:31:13 +0000</resolved>
                                    <version>2.8.0-rc0</version>
                                    <fixVersion>2.8.0-rc1</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="763554" author="xgen-internal-githook" created="Thu, 13 Nov 2014 17:29:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dannenberg&apos;, u&apos;name&apos;: u&apos;matt dannenberg&apos;, u&apos;email&apos;: u&apos;matt.dannenberg@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15931&quot; title=&quot;Repeated &amp;quot;[ReplicationExecutor] could not find member to sync from&amp;quot; in healthy replica set&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15931&quot;&gt;&lt;del&gt;SERVER-15931&lt;/del&gt;&lt;/a&gt; print &quot;could not find member to sync from&quot; only once between successful detections&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9a9b844828cdba0689484a6c18d9f04e8b5f950c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9a9b844828cdba0689484a6c18d9f04e8b5f950c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="756240" author="milkie" created="Tue, 4 Nov 2014 23:39:16 +0000"  >&lt;p&gt;How about you just print the message once, and then do not print it again until after a subsequent successful connection?&lt;/p&gt;</comment>
                            <comment id="756228" author="mattd@10gen.com" created="Tue, 4 Nov 2014 23:24:24 +0000"  >&lt;p&gt;The trouble stems from bgsync&apos;s producer thread&apos;s oplogreader failing to find a sync source to connect to. It will loop, sleeping for one second between checking for a member to sync from, until another operation occurs on the primary. The two solutions seem to be either change the sleep time in BackgroundSync::produce for the _syncSourceReader.getHost().empty() branch or to change sync source selection to permit members who are at least as far along as we are rather than only members who are ahead of us. Neither solution seems ideal. Thoughts?&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="151160">SERVER-14809</issuekey>
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