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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>[CSHARP-2672] Fix snappy compression</title>
                <link>https://jira.mongodb.org/browse/CSHARP-2672</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;The below repo with turned on `snappy` compression:&lt;/p&gt;

&lt;p/&gt;
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					&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;          var m = &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;new&lt;/span&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; MongoClient(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;mongodb://localhost?compressors=snappy&quot;&lt;/span&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;);&lt;/span&gt;&lt;/pre&gt;
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					&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;          var coll = m.GetDatabase(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;test&quot;&lt;/span&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;).GetCollection&amp;lt;BsonDocument&amp;gt;(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;foo&quot;&lt;/span&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;);&lt;/span&gt;&lt;/pre&gt;
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						&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;          coll.InsertOne(BsonDocument.Parse(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;{x:1}&quot;&lt;/span&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;));&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt; throws the server exception:&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;
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						&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;DBException handling request, closing client connection: BadValue: Compressed message was invalid or corrupted&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Probably it&apos;s something about the difference in the format of `snappy` headers which are expected by the server and format which we use in the driver.&lt;/p&gt;

&lt;p&gt;NOTE: currently `snappy` is disabled in `evergreen.yml`. It should be turned on. However when I did it, all tests related to `snappy` task passed: &lt;a href=&quot;https://evergreen.mongodb.com/version/5d3ebf440ae6067c15be8da9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://evergreen.mongodb.com/version/5d3ebf440ae6067c15be8da9&lt;/a&gt;&lt;br/&gt;
Perhaps it&apos;s not enough just to uncomment the snappy lines from here: &lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/blob/master/evergreen/evergreen.yml#L483&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-csharp-driver/blob/master/evergreen/evergreen.yml#L483&lt;/a&gt;. It should be also investigated.&lt;/p&gt;</description>
                <environment></environment>
        <key id="878433">CSHARP-2672</key>
            <summary>Fix snappy compression</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="13201">Fixed</resolution>
                                        <assignee username="vincent.kam@mongodb.com">Vincent Kam</assignee>
                                    <reporter username="dmitry.lukyanov@mongodb.com">Dmitry Lukyanov</reporter>
                        <labels>
                    </labels>
                <created>Mon, 29 Jul 2019 16:13:50 +0000</created>
                <updated>Sat, 28 Oct 2023 11:48:41 +0000</updated>
                            <resolved>Fri, 27 Sep 2019 20:45:28 +0000</resolved>
                                                    <fixVersion>2.9.2</fixVersion>
                                    <component>Wire Protocol</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2440140" author="xgen-internal-githook" created="Mon, 30 Sep 2019 14:08:30 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;vincentkam&apos;, &apos;username&apos;: &apos;vincentkam&apos;, &apos;email&apos;: &apos;vincent.kam@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-2672&quot; title=&quot;Fix snappy compression&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-2672&quot;&gt;&lt;del&gt;CSHARP-2672&lt;/del&gt;&lt;/a&gt;: Fix snappy compression&lt;br/&gt;
Branch: v2.9.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/commit/8f5fadaaeb84e59c77001a5ed129998346bc0802&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-csharp-driver/commit/8f5fadaaeb84e59c77001a5ed129998346bc0802&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2437237" author="xgen-internal-githook" created="Fri, 27 Sep 2019 20:37:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;vincentkam&apos;, &apos;email&apos;: &apos;vincent.kam@10gen.com&apos;, &apos;name&apos;: &apos;vincentkam&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-2672&quot; title=&quot;Fix snappy compression&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-2672&quot;&gt;&lt;del&gt;CSHARP-2672&lt;/del&gt;&lt;/a&gt;: Fix snappy compression&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/commit/1f91e976cf898822e9058cd43be60c7f664e456f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-csharp-driver/commit/1f91e976cf898822e9058cd43be60c7f664e456f&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="942944">CSHARP-2760</issuekey>
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