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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-20889] Introduce means to disable sharding minOpTime recovery</title>
                <link>https://jira.mongodb.org/browse/SERVER-20889</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;With the introduction of Config Servers as Replica Sets, shard hosts will checkpoint the latest config server opTime after each metadata operation they perform and if necessary on startup will contact the config server&apos;s primary in order to recover the minOpTime that they should be using.&lt;/p&gt;

&lt;p&gt;This poses problems with restoring a host, which was previously backed up with this recovery information, because it will attempt to connect a potentially defunct config server.&lt;/p&gt;

&lt;p&gt;For this reason, we need to either have a separate argument, which allows the recovery information to be ignored or we should start requiring --shardSvr to be specified for all shard servers.&lt;/p&gt;</description>
                <environment></environment>
        <key id="234028">SERVER-20889</key>
            <summary>Introduce means to disable sharding minOpTime recovery</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="9">Done</resolution>
                                        <assignee username="spencer@mongodb.com">Spencer Brody</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Mon, 12 Oct 2015 21:04:29 +0000</created>
                <updated>Wed, 3 Apr 2019 15:19:45 +0000</updated>
                            <resolved>Thu, 22 Oct 2015 17:09:16 +0000</resolved>
                                                    <fixVersion>3.2.0-rc1</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1094511" author="schwerin" created="Fri, 20 Nov 2015 18:12:08 +0000"  >&lt;p&gt;Most important documentation change is to update the restore procedures for sharded clusters and single shards, which is &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-6597&quot; title=&quot;Update documented sharded cluster backup and restore procedures for CSRS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-6597&quot;&gt;&lt;del&gt;DOCS-6597&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="1068056" author="spencer" created="Thu, 22 Oct 2015 17:10:33 +0000"  >&lt;p&gt;Sharding state recovery can be disabled by starting mongod with --setParameter=recoverShardingState=false&lt;/p&gt;</comment>
                            <comment id="1068055" author="xgen-internal-githook" created="Thu, 22 Oct 2015 17:08:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;stbrody&apos;, u&apos;name&apos;: u&apos;Spencer T Brody&apos;, u&apos;email&apos;: u&apos;spencer@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20889&quot; title=&quot;Introduce means to disable sharding minOpTime recovery&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20889&quot;&gt;&lt;del&gt;SERVER-20889&lt;/del&gt;&lt;/a&gt; Add server parameter for disabling sharding state recovery&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/14172523b2afcb4b1c3837cd777a5373a3be1441&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/14172523b2afcb4b1c3837cd777a5373a3be1441&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1060860" author="cailin.nelson@10gen.com" created="Wed, 14 Oct 2015 20:46:52 +0000"  >&lt;p&gt;Ah, understood.  Thanks.&lt;/p&gt;</comment>
                            <comment id="1060833" author="kaloian.manassiev" created="Wed, 14 Oct 2015 20:24:09 +0000"  >&lt;p&gt;If the minOpTime recovery information is not present, this means that this particular shard never executed any metadata changing operation (i.e., move chunk). Don&apos;t think of it as cache, but instead as a progress checkpoint.&lt;/p&gt;

&lt;p&gt;So this information must be backed up if the node will ever be used as a shard again and patched up on restore to point to the correct config server.&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="234545">SERVER-20943</issuekey>
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            <issuekey id="235710">DOCS-6435</issuekey>
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            <issuekey id="225497">SERVER-19934</issuekey>
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            <issuelink>
            <issuekey id="235710">DOCS-6435</issuekey>
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            <issuelink>
            <issuekey id="233545">SERVER-20824</issuekey>
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