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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-26595] WT fsyncLock implementation opens every table</title>
                <link>https://jira.mongodb.org/browse/SERVER-26595</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The WT integration implementation of fsyncLock opens a backup cursor.  When not given a specific URI, WiredTiger will setup the backup cursor to walk every table, which results in opening every table.  MongoDB doesn&apos;t use the backup cursor data.  To avoid this side effect, a URI should be passed in to the &lt;tt&gt;open_cursor&lt;/tt&gt; call.&lt;/p&gt;</description>
                <environment></environment>
        <key id="323019">SERVER-26595</key>
            <summary>WT fsyncLock implementation opens every table</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="sue.loverso@mongodb.com">Susan LoVerso</reporter>
                        <labels>
                    </labels>
                <created>Wed, 12 Oct 2016 14:04:35 +0000</created>
                <updated>Wed, 12 Oct 2016 19:04:06 +0000</updated>
                            <resolved>Wed, 12 Oct 2016 19:03:51 +0000</resolved>
                                                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1406657" author="sue.loverso" created="Wed, 12 Oct 2016 19:03:51 +0000"  >&lt;p&gt;This proposed fix does not work.  It requires WT internal work and &lt;a href=&quot;https://jira.mongodb.org/browse/WT-2968&quot; title=&quot;backup cursor opens every file&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2968&quot;&gt;&lt;del&gt;WT-2968&lt;/del&gt;&lt;/a&gt; has been created.&lt;/p&gt;</comment>
                            <comment id="1406514" author="sue.loverso" created="Wed, 12 Oct 2016 17:23:05 +0000"  >&lt;p&gt;This change does not fix the problem.  Although it avoids opening up all the files, it also does not properly create the right content in the &lt;tt&gt;WiredTiger.backup&lt;/tt&gt; file.  I think we&apos;re going to need to look at the API change and internal WT modifications to create the correct backup file but not open all the files.&lt;/p&gt;</comment>
                            <comment id="1406218" author="sue.loverso" created="Wed, 12 Oct 2016 14:10:47 +0000"  >&lt;p&gt;The fix should go into &lt;tt&gt;wiredtiger_kv_engine.cpp&lt;/tt&gt; in &lt;tt&gt;beginBackup&lt;/tt&gt;.  The line:&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;
		&lt;tbody &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-top: 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;int ret = WT_OP_CHECK(s-&amp;gt;open_cursor(s, &quot;backup:&quot;, NULL, NULL, &amp;amp;c));&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;should pass a target URI as the config string.&lt;/p&gt;</comment>
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