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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-29694] Read-only shards should not try to persist the collection routing information locally</title>
                <link>https://jira.mongodb.org/browse/SERVER-29694</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;With the changes to support chunk filtering on shard secondaries, the primary nodes now persist the collection routing information locally. In the case of read-only shards, these writes are failing benignly, but are polluting the logs with messages like this:&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;
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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;  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;[js_test:count] 2017-06-14T15:34:12.651+0000 d20262| 2017-06-14T15:34:12.415+0000 I SHARDING [ShardServerCatalogCacheLoader-0] OperationFailed: Failed to update the persisted chunk metadata for collection &apos;test.count&apos; from &apos;4|1||5941576905d04677f27f055f&apos; to &apos;4|1||5941576905d04677f27f055f&apos; due to &apos;IllegalOperation: Cannot execute a write operation in read-only mode&apos;. Will be retried.&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;[js_test:count] 2017-06-14T15:34:12.652+0000 d20262| 2017-06-14T15:34:12.415+0000 I SHARDING [ShardServerCatalogCacheLoader-0] OperationFailed: Failed to update the persisted chunk metadata for collection &apos;test.count&apos; from &apos;4|1||5941576905d04677f27f055f&apos; to &apos;4|1||5941576905d04677f27f055f&apos; due to &apos;IllegalOperation: Cannot execute a write operation in read-only mode&apos;. Will be retried.&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;This ticket is to come up with a solution to prevent read-only shard primaries from writing the chunk routing table.&lt;/p&gt;</description>
                <environment></environment>
        <key id="394880">SERVER-29694</key>
            <summary>Read-only shards should not try to persist the collection routing information locally</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Fri, 16 Jun 2017 19:42:53 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:57 +0000</updated>
                            <resolved>Wed, 9 Aug 2017 12:55:53 +0000</resolved>
                                    <version>3.5.8</version>
                                    <fixVersion>3.5.12</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1643970" author="xgen-internal-githook" created="Wed, 9 Aug 2017 12:55:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;DiannaHohensee&apos;, &apos;email&apos;: &apos;dianna.hohensee@10gen.com&apos;, &apos;name&apos;: &apos;Dianna Hohensee&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29694&quot; title=&quot;Read-only shards should not try to persist the collection routing information locally&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29694&quot;&gt;&lt;del&gt;SERVER-29694&lt;/del&gt;&lt;/a&gt; Read-only shards should not try to persist the collection routing information locally&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/aa102021070c10f802b9be8877870400cc27ed07&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/aa102021070c10f802b9be8877870400cc27ed07&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1642230" author="dianna.hohensee" created="Mon, 7 Aug 2017 18:53:21 +0000"  >&lt;p&gt;New proposal. Make a new readOnly implementation of the CatalogCacheLoader that contains a ConfigServerCatalogCacheLoader and does not invariant on the unused functions. Then swap out the shard loader for the new readOnly loader as originally proposed.&lt;/p&gt;</comment>
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