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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-27035] rs.compareOpTimes() throws exception when comparing with empty OpTime</title>
                <link>https://jira.mongodb.org/browse/SERVER-27035</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This is causing a lot of exceptions to be thrown in tests that look like errors but are really expected behavior. If we want an exception to be thrown, an empty optime should be a special case with a different message or at least the error should print the optimes. An example is here:&lt;br/&gt;
&lt;a href=&quot;https://logkeeper.mongodb.org/build/7372a5210d84ad648172a4ad21da6892/test/582a3e90be07c4674504e874#L436&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://logkeeper.mongodb.org/build/7372a5210d84ad648172a4ad21da6892/test/582a3e90be07c4674504e874#L436&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The following throws an exception, when the empty OpTime should probably just be considered earlier.&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;rs.compareOpTimes({ts: Timestamp(1,2), t:3}, {ts:Timestamp(0,0), t: -1});&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;2016-11-14T19:07:40.363-0500 E QUERY    [main] Error: cannot compare optimes between different protocol versions :&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;rs.compareOpTimes@src/mongo/shell/utils.js:1340:1&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;@(shell):1:1&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
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&lt;/div&gt;
&lt;p/&gt;</description>
                <environment></environment>
        <key id="331834">SERVER-27035</key>
            <summary>rs.compareOpTimes() throws exception when comparing with empty OpTime</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="9">Done</resolution>
                                        <assignee username="jack.mulrow@mongodb.com">Jack Mulrow</assignee>
                                    <reporter username="judah.schvimer@mongodb.com">Judah Schvimer</reporter>
                        <labels>
                            <label>neweng</label>
                    </labels>
                <created>Tue, 15 Nov 2016 00:19:36 +0000</created>
                <updated>Wed, 5 Apr 2017 11:43:11 +0000</updated>
                            <resolved>Thu, 22 Dec 2016 19:03:42 +0000</resolved>
                                                    <fixVersion>3.4.3</fixVersion>
                    <fixVersion>3.5.2</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1492828" author="xgen-internal-githook" created="Mon, 6 Feb 2017 15:38:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jsmulrow&apos;, u&apos;name&apos;: u&apos;Jack Mulrow&apos;, u&apos;email&apos;: u&apos;jack.mulrow@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27035&quot; title=&quot;rs.compareOpTimes() throws exception when comparing with empty OpTime&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27035&quot;&gt;&lt;del&gt;SERVER-27035&lt;/del&gt;&lt;/a&gt; rs.compareOpTimes() throws exception when comparing with empty OpTime&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 2f33ffa96f630df133aa9670e9d9810bfbcca714)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cf97a34201b170d803200b84665654911758a517&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cf97a34201b170d803200b84665654911758a517&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1464250" author="xgen-internal-githook" created="Thu, 22 Dec 2016 18:59:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jsmulrow&apos;, u&apos;name&apos;: u&apos;Jack Mulrow&apos;, u&apos;email&apos;: u&apos;jack.mulrow@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27035&quot; title=&quot;rs.compareOpTimes() throws exception when comparing with empty OpTime&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27035&quot;&gt;&lt;del&gt;SERVER-27035&lt;/del&gt;&lt;/a&gt; rs.compareOpTimes() throws exception when comparing with empty OpTime&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2f33ffa96f630df133aa9670e9d9810bfbcca714&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2f33ffa96f630df133aa9670e9d9810bfbcca714&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1447813" author="judah.schvimer" created="Fri, 2 Dec 2016 16:24:48 +0000"  >&lt;p&gt;For this ticket we want &lt;tt&gt;rs.compareOpTimes()&lt;/tt&gt; to first check if either OpTime is empty, and if so it should throw with a more helpful message:&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;Cannot do comparison with null OpTime, received: {ts: Timestamp(1,2), t:3} and {ts:Timestamp(0,0), t: -1}&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;</comment>
                            <comment id="1443432" author="milkie" created="Mon, 28 Nov 2016 16:30:12 +0000"  >&lt;p&gt;I think we should just do &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27189&quot; title=&quot;_getLastOpTime / _getDurableOpTime do not handle missing nodes gracefully&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27189&quot;&gt;&lt;del&gt;SERVER-27189&lt;/del&gt;&lt;/a&gt; instead.&lt;/p&gt;</comment>
                            <comment id="1434918" author="spencer" created="Tue, 15 Nov 2016 20:32:33 +0000"  >&lt;p&gt;This was introduced in &lt;a href=&quot;https://github.com/mongodb/mongo/commit/a38156adf985f57861f7f00e1dfa24183abcc105&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a38156adf985f57861f7f00e1dfa24183abcc105&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="315633">SERVER-26065</issuekey>
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