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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-4098] Sharding: Unable to Upsert when shard key is in an embedded doc </title>
                <link>https://jira.mongodb.org/browse/SERVER-4098</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I am using 2.0 release of mongodb in a setup with 4 shards. I created a test collection with following data:&lt;br/&gt;
mongos&amp;gt; db.test1.find()&lt;br/&gt;
{ &quot;_id&quot; : &lt;/p&gt;
{ &quot;a&quot; : 1, &quot;b&quot; : 1 }
&lt;p&gt;, &quot;c&quot; : 3 }&lt;br/&gt;
{ &quot;_id&quot; : &lt;/p&gt;
{ &quot;a&quot; : 1, &quot;b&quot; : 2 }
&lt;p&gt;, &quot;c&quot; : 3 }&lt;br/&gt;
{ &quot;_id&quot; : &lt;/p&gt;
{ &quot;a&quot; : 1, &quot;b&quot; : 3 }
&lt;p&gt;, &quot;c&quot; : 3 }&lt;br/&gt;
{ &quot;_id&quot; : &lt;/p&gt;
{ &quot;a&quot; : 1, &quot;b&quot; : 4 }
&lt;p&gt;, &quot;c&quot; : 3 }&lt;/p&gt;


&lt;p&gt;I sharded the collection with shard key: &quot;_id&quot; which worked fine. Even new inserts are working fine after sharding but &quot;upserts&quot; are not working. &lt;br/&gt;
For example , following command: &lt;br/&gt;
$collection-&amp;gt;update(&lt;br/&gt;
array(&apos;_id&apos; =&amp;gt; array(&apos;a&apos; =&amp;gt; 1, &apos;b&apos; =&amp;gt; 3)),&lt;br/&gt;
array(&apos;c&apos; =&amp;gt; array(&apos;$inc&apos; =&amp;gt; 1)),&lt;br/&gt;
array(&apos;upsert&apos; =&amp;gt; true, &apos;safe&apos; =&amp;gt; true)&lt;br/&gt;
);&lt;/p&gt;

&lt;p&gt;results in this error: ** EXCEPTION: can&apos;t upsert something without valid shard key&lt;/p&gt;

&lt;p&gt;I am using PHP 1.2.3 extension to connect to mongodb.&lt;/p&gt;

&lt;p&gt;Above error can be reproduced also when I use &quot;_id.a&quot; as a shard key rather than &quot;_id&quot;.&lt;/p&gt;</description>
                <environment>Ubuntu 10.04 LTS (Lucid Lynx)</environment>
        <key id="23792">SERVER-4098</key>
            <summary>Sharding: Unable to Upsert when shard key is in an embedded doc </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="3">Duplicate</resolution>
                                        <assignee username="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="vinaykr">Vinaykr</reporter>
                        <labels>
                            <label>sharding</label>
                            <label>update</label>
                    </labels>
                <created>Wed, 19 Oct 2011 00:12:54 +0000</created>
                <updated>Wed, 29 Feb 2012 03:53:58 +0000</updated>
                            <resolved>Tue, 1 Nov 2011 19:46:48 +0000</resolved>
                                    <version>2.0.0</version>
                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="64035" author="redbeard0531" created="Tue, 1 Nov 2011 19:46:48 +0000"  >&lt;p&gt;This is fallout from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3657&quot; title=&quot;Don&amp;#39;t treat updates without upsert as a save() in sharding&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3657&quot;&gt;&lt;del&gt;SERVER-3657&lt;/del&gt;&lt;/a&gt; and will be fixed at the same time&lt;/p&gt;</comment>
                            <comment id="63847" author="ronnykwon" created="Mon, 31 Oct 2011 21:46:58 +0000"  >&lt;p&gt;it seems that we have the same issue. We have 3 mongoS and mongo C with 2 replica (one primary and two slaves)&lt;br/&gt;
the upsert throws an exception :&lt;br/&gt;
MongoDB.Driver.MongoSafeModeException: Safemode detected an error &apos;Can&apos;t modify shard key&apos;s value fieldk for collection: mydb.cachedItems&apos;. (Response was &lt;/p&gt;
{ &quot;err&quot; : &quot;Can&apos;t modify shard key&apos;s value fieldk for collection:mydb.cachedItems&quot;, &quot;code&quot; : 13123, &quot;n&quot; : 0, &quot;ok&quot; : 1.0 }
&lt;p&gt;).&lt;/p&gt;</comment>
                            <comment id="63395" author="vinaykr" created="Fri, 28 Oct 2011 19:21:07 +0000"  >&lt;p&gt;any updates on this? Was anybody able to repro it? &lt;br/&gt;
Thanks.&lt;/p&gt;</comment>
                    </comments>
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                            <issuelinktype id="10010">
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            <issuekey id="21243">SERVER-3657</issuekey>
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