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            <title>[SERVER-12800] $snapshot can be very slow compared to a table scan</title>
                <link>https://jira.mongodb.org/browse/SERVER-12800</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This is pretty well known but we need a ticket to track the issue.  There are some incremental ways this could be addressed, but if the storage engine gets revised, it may happen automatically.&lt;/p&gt;</description>
                <environment></environment>
        <key id="112412">SERVER-12800</key>
            <summary>$snapshot can be very slow compared to a table scan</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="9">Done</resolution>
                                        <assignee username="dan@mongodb.com">Daniel Pasette</assignee>
                                    <reporter username="dwight@mongodb.com">Dwight Merriman</reporter>
                        <labels>
                    </labels>
                <created>Thu, 20 Feb 2014 16:18:24 +0000</created>
                <updated>Mon, 21 Mar 2016 20:59:38 +0000</updated>
                            <resolved>Mon, 21 Mar 2016 20:59:38 +0000</resolved>
                                                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="1210237" author="ian@10gen.com" created="Mon, 21 Mar 2016 20:59:38 +0000"  >&lt;p&gt;This is now fixed in WiredTiger as this storage engine does table scans for $snapshot.&lt;/p&gt;</comment>
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