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    <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>[JAVA-3961] Docs: Clarify cold publishers </title>
                <link>https://jira.mongodb.org/browse/JAVA-3961</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>
&lt;blockquote&gt;&lt;p&gt;All Publishers returned from the API are cold, meaning that no I/O happens until they are subscribed to and the subscription makes a request. So just creating a Publisher won&#8217;t cause any network IO. It&#8217;s not until Subscription.request() is called that the driver executes the operation.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;This is incorrect as its the subscription that may trigger i/o see: &lt;a href=&quot;https://projectreactor.io/docs/core/release/reference/#reactor.hotCold&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Hot Versus Cold&lt;/a&gt; with cold publishers nothing happens before you subscribe - regardless of the initial demand.  So some IO may occur on subscribe, determining sessions / creating cursors.&lt;/p&gt;
</description>
                <environment></environment>
        <key id="1600668">JAVA-3961</key>
            <summary>Docs: Clarify cold publishers </summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="ross@mongodb.com">Ross Lawley</assignee>
                                    <reporter username="ross@mongodb.com">Ross Lawley</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Jan 2021 14:17:47 +0000</created>
                <updated>Tue, 26 Jan 2021 22:00:19 +0000</updated>
                            <resolved>Tue, 26 Jan 2021 16:04:49 +0000</resolved>
                                                                    <component>Documentation</component>
                    <component>Reactive Streams</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3582815" author="xgen-internal-githook" created="Tue, 26 Jan 2021 16:04:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Ross Lawley&apos;, &apos;email&apos;: &apos;ross.lawley@gmail.com&apos;, &apos;username&apos;: &apos;rozza&apos;}
&lt;p&gt;Message: Docs: Reactive streams clarify cold publishers (#645)&lt;/p&gt;


&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-3961&quot; title=&quot;Docs: Clarify cold publishers &quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-3961&quot;&gt;&lt;del&gt;JAVA-3961&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/a9dfbbf19aba1c6e41283db87d5ef5ed4acd6eec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/a9dfbbf19aba1c6e41283db87d5ef5ed4acd6eec&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3582685" author="ross@10gen.com" created="Tue, 26 Jan 2021 15:26:38 +0000"  >&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/pull/645&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/pull/645&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="split from">
                                        <issuelink>
            <issuekey id="1565193">JAVA-3907</issuekey>
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            <issuekey id="1601241">JAVA-3963</issuekey>
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