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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>
    </build-info>


<item>
            <title>[SERVER-20067] Shell should decide whether or not to use find/getMore commands based on on wire protocol version</title>
                <link>https://jira.mongodb.org/browse/SERVER-20067</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The shell and drivers should detect based on wire version whether or not the server supports the find and getMore commands and then use the appropriate protocol for &lt;tt&gt;.find()&lt;/tt&gt; operations.&lt;/p&gt;

&lt;p&gt;The shell should support three values for the &lt;tt&gt;--readMode&lt;/tt&gt; flag:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;&lt;tt&gt;compatibility&lt;/tt&gt;: This is the default if no value is supplied for &lt;tt&gt;--readMode&lt;/tt&gt;. This mode indicates that the shell should use the wire protocol version from the response to an isMaster command in order to determine which read protocol to use. If the server supports find/getMore commands, the shell should use &quot;commands&quot; readMode. Otherwise, the shell should degrade to legacy OP_QUERY/OP_GET_MORE reads.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;legacy&lt;/tt&gt;: Forces the shell to use legacy OP_QUERY/OP_GET_MORE reads regardless of the wire protocol version.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;commands&lt;/tt&gt;: Forces the shell to use find/getMore commands regardless of the wire protocol version.&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;You can also set the shell to use a particular readMode at runtime:&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;   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;// Force the shell to use OP_QUERY/OP_GET_MORE reads.&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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;   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;db.getMongo().forceReadMode(&quot;legacy&quot;);&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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;   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;// Force the shell to use find/getMore commands.&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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-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;db.getMongo().forceReadMode(&quot;commands&quot;);&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;</description>
                <environment></environment>
        <key id="226479">SERVER-20067</key>
            <summary>Shell should decide whether or not to use find/getMore commands based on on wire protocol version</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Thu, 20 Aug 2015 18:51:00 +0000</created>
                <updated>Wed, 7 Oct 2015 21:35:24 +0000</updated>
                            <resolved>Wed, 30 Sep 2015 17:48:55 +0000</resolved>
                                                    <fixVersion>3.1.9</fixVersion>
                                    <component>Querying</component>
                    <component>Shell</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1047703" author="xgen-internal-githook" created="Wed, 30 Sep 2015 17:39:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20067&quot; title=&quot;Shell should decide whether or not to use find/getMore commands based on on wire protocol version&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20067&quot;&gt;&lt;del&gt;SERVER-20067&lt;/del&gt;&lt;/a&gt; &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19572&quot; title=&quot;Change shell default read mode to &amp;quot;compatibility&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-19572&quot;&gt;&lt;del&gt;SERVER-19572&lt;/del&gt;&lt;/a&gt; set readMode in shell based on wire version&lt;/p&gt;

&lt;p&gt;&quot;compatibility&quot; readMode now causes the shell to detect whether or not&lt;br/&gt;
to use find/getMore commands based on wire version. &quot;commands&quot; mode&lt;br/&gt;
forces use of the find/getMore commands, and &quot;legacy&quot; mode forces uses&lt;br/&gt;
of legacy OP_QUERY/OP_GET_MORE reads.&lt;/p&gt;

&lt;p&gt;Also configures tests to force use of &quot;commands&quot; or &quot;legacy&quot; mode as&lt;br/&gt;
appropriate.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/df2a33f9974950ebe484edfa29171cec53071b0a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/df2a33f9974950ebe484edfa29171cec53071b0a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1024175" author="xgen-internal-githook" created="Tue, 8 Sep 2015 15:40:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20067&quot; title=&quot;Shell should decide whether or not to use find/getMore commands based on on wire protocol version&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20067&quot;&gt;&lt;del&gt;SERVER-20067&lt;/del&gt;&lt;/a&gt; remove sharded_limit_batchsize.js assertions depending on getmore log format&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ae1fb1a88c99f3905413e2945a812007941864b0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ae1fb1a88c99f3905413e2945a812007941864b0&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10011">
                    <name>Depends</name>
                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="228504">SERVER-20294</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="227634">SERVER-20194</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="191719">DRIVERS-211</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="222525">SERVER-19572</issuekey>
        </issuelink>
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