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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-12349] Insert from update replaces {_id:Timestamp()} with current date+inc</title>
                <link>https://jira.mongodb.org/browse/SERVER-12349</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When inserting a document into a collection using a Timestamp as the identifier, if the time and ordinal are both 0, the secondary fails on replication and throws an fassert failure causing mongod to die.  In addition, any attempt to restart the secondary will fail as that same op will attempt to replicate and cause the same exception again.  This is a change in behavior from the previous 2.4 release line.&lt;/p&gt;

&lt;p&gt;I tried this with other combinations of timestamps, both in value and in location in the document and it&apos;s always when the timestamp is _id with 0&apos;s for both of its components.&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;2014-01-13T14:03:24.987-0600 [repl writer worker 1] ERROR: writer worker caught&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;exception:  :: caused by :: 16836 The _id field cannot be changed from {_id: Timestamp 0|0} to {_id: Timestamp 1389643404000|1}. on: { ts: Timestamp 1389643404000|1, h: -2969864546816060428, v: 2, op: &quot;i&quot;, ns: &quot;test.foo&quot;, o: { _id: Timestamp 0|0 } }&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;2014-01-13T14:03:24.987-0600 [repl writer worker 1] Fatal Assertion 16360&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;2014-01-13T14:03:24.987-0600 [repl writer worker 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;&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;   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;***aborting after fassert() failure&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="105882">SERVER-12349</key>
            <summary>Insert from update replaces {_id:Timestamp()} with current date+inc</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="scotthernandez">Scott Hernandez</assignee>
                                    <reporter username="craig.wilson@mongodb.com">Craig Wilson</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 Jan 2014 20:05:04 +0000</created>
                <updated>Wed, 9 Oct 2019 17:10:47 +0000</updated>
                            <resolved>Mon, 27 Jan 2014 16:27:53 +0000</resolved>
                                                    <fixVersion>2.5.5</fixVersion>
                                    <component>Replication</component>
                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="488147" author="xgen-internal-githook" created="Mon, 27 Jan 2014 16:25:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;scotthernandez&apos;, u&apos;name&apos;: u&apos;Scott Hernandez&apos;, u&apos;email&apos;: u&apos;scotthernandez@gmail.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-12349&quot; title=&quot;Insert from update replaces {_id:Timestamp()} with current date+inc&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-12349&quot;&gt;&lt;del&gt;SERVER-12349&lt;/del&gt;&lt;/a&gt;: don&apos;t replace _id Timestamp, but replace all toplevel Timestamp(0,0) - like insert&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e7160fcd26cc0508f9fe2a47bb0a78561250565d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e7160fcd26cc0508f9fe2a47bb0a78561250565d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="481925" author="scotthernandez" created="Tue, 14 Jan 2014 18:47:54 +0000"  >&lt;p&gt;Craig, the _id being replaced before was the bug, which is now fixed in insert, but was still broken in update (w/upsert:true -&amp;gt; insert). We have also expanded timestamp replacement to support all top-level fields (except _id).&lt;/p&gt;

&lt;p&gt;Now the _id field will be immutable and will not do the replacement, and I hope most people would expect.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=eliot&quot; class=&quot;user-hover&quot; rel=&quot;eliot&quot;&gt;eliot&lt;/a&gt;, let me know if this was not the way we wanted to go. Also, I will file another improvement for this state ({_id:Timestamp()}) to be an error since that would catch anyone doing this rather then just silently failing on the first one (since the second one will result in a conflict of Timestamp(0,0) on the unique _id index).&lt;/p&gt;

&lt;p&gt;Craig, if you have use-cases for using the _id as an expanding unique Timestamp, please file a new issue and we can discuss there and about the use-case(s).&lt;/p&gt;</comment>
                            <comment id="481249" author="craiggwilson" created="Mon, 13 Jan 2014 21:11:33 +0000"  >&lt;p&gt;I see the change in the title of the ticket.  It&apos;s much more explanatory, but it seems backwards.  I think the correct statement is that &lt;/p&gt;
{ _id: Timestamp() }
&lt;p&gt; is NOT expanded on insert on the primary.  This is different behavior than in 2.4.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10520">
                    <name>Problem/Incident</name>
                                            <outwardlinks description="causes">
                                        <issuelink>
            <issuekey id="904987">SERVER-43014</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="105260">SERVER-12302</issuekey>
        </issuelink>
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