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    <title>MongoDB Jira</title>
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    <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-15938] Running enablesharding using 2.8 mongods with 2.6 mongos fails with obscure message</title>
                <link>https://jira.mongodb.org/browse/SERVER-15938</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If you have a sharded cluster with 2.8 mongod shards and a 2.6 mongos, running enablesharding will result in a very confusing message:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;It would be nice if there was a way to detect this situation and alert users to the fact that they need to upgrade all their mongos instances before any of their mongod instances.&lt;/p&gt;</description>
                <environment></environment>
        <key id="167217">SERVER-15938</key>
            <summary>Running enablesharding using 2.8 mongods with 2.6 mongos fails with obscure message</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="3">Duplicate</resolution>
                                        <assignee username="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="andrew.emil@10gen.com">Andrew Emil</reporter>
                        <labels>
                            <label>28qa</label>
                    </labels>
                <created>Tue, 4 Nov 2014 16:07:38 +0000</created>
                <updated>Mon, 23 Mar 2015 17:49:03 +0000</updated>
                            <resolved>Mon, 24 Nov 2014 21:22:03 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="757275" author="greg_10gen" created="Wed, 5 Nov 2014 22:23:12 +0000"  >&lt;p&gt;We&apos;ll see what we can do here - it isn&apos;t possible to change mongos 2.6 behavior and there&apos;s not always a distinguishable handshake with the shard.&lt;/p&gt;</comment>
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                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="169641">SERVER-16184</issuekey>
        </issuelink>
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                                                        </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="170432">SERVER-16252</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
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                            <attachment id="56024" name="enablesharding_repro.js" size="252" author="andrew.emil@10gen.com" created="Tue, 4 Nov 2014 16:07:38 +0000"/>
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