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            <title>[SERVER-17744] Enable useful write concern for no-op operations</title>
                <link>https://jira.mongodb.org/browse/SERVER-17744</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, if a write operation ends up being a no-op for some reason, no op is logged in the oplog.  For example, there could be a race between two clients to update the same document to the same value.  Whichever client wins the race will end up logging the op in the oplog, and will have an optime to use for waiting for write concern.&lt;br/&gt;
It would be useful if the losing client could also wait for at least that same optime, even though it didn&apos;t do the write.  Today, write concern would return immediately without waiting, because the optime in the Client is not updated if a write is a no-op.  &lt;br/&gt;
One proposal is to update the optime in the Client even on no-op writes.  It could use the global lastOptime for this, since it doesn&apos;t know exactly which op it raced with.&lt;/p&gt;</description>
                <environment></environment>
        <key id="192028">SERVER-17744</key>
            <summary>Enable useful write concern for no-op operations</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="3">Duplicate</resolution>
                                        <assignee username="matt.dannenberg">Matt Dannenberg</assignee>
                                    <reporter username="milkie@mongodb.com">Eric Milkie</reporter>
                        <labels>
                    </labels>
                <created>Wed, 25 Mar 2015 21:19:59 +0000</created>
                <updated>Tue, 1 Sep 2015 14:44:26 +0000</updated>
                            <resolved>Tue, 1 Sep 2015 14:44:14 +0000</resolved>
                                                                    <component>Replication</component>
                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="1019363" author="mattd@10gen.com" created="Tue, 1 Sep 2015 14:44:14 +0000"  >&lt;p&gt;Duplicates &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18522&quot; title=&quot;Majority (WC) writes, even no-ops, must enforce replication WC&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18522&quot;&gt;&lt;del&gt;SERVER-18522&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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