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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>
    </build-info>


<item>
            <title>[SERVER-72227] Investigate how ESE WiredTiger configuration string arguments may appear in replicated catalog data</title>
                <link>https://jira.mongodb.org/browse/SERVER-72227</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68122&quot; title=&quot;Investigate replicating the collection WiredTiger config string during initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68122&quot;&gt;&lt;del&gt;SERVER-68122&lt;/del&gt;&lt;/a&gt; and linked tickets we received reports that, under some circumstances, config string arguments specific to the encrypted storage engine could become durably persisted in the replicated catalog metadata, without being specified in a &lt;tt&gt;create&lt;/tt&gt; command.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68122&quot; title=&quot;Investigate replicating the collection WiredTiger config string during initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68122&quot;&gt;&lt;del&gt;SERVER-68122&lt;/del&gt;&lt;/a&gt; intends to resolve this issue by ignoring ESE options stored in the catalog. Still, we should investigate how this situation happened, and figure out how ephemeral config string arguments became durable.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2214319">SERVER-72227</key>
            <summary>Investigate how ESE WiredTiger configuration string arguments may appear in replicated catalog data</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="5">Cannot Reproduce</resolution>
                                        <assignee username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</assignee>
                                    <reporter username="spencer.jackson@mongodb.com">Spencer Jackson</reporter>
                        <labels>
                    </labels>
                <created>Fri, 16 Dec 2022 22:50:51 +0000</created>
                <updated>Mon, 31 Jul 2023 14:14:17 +0000</updated>
                            <resolved>Mon, 31 Jul 2023 11:18:02 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5601830" author="JIRAUSER1264163" created="Mon, 31 Jul 2023 13:52:41 +0000"  >&lt;p&gt;Opened &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79496&quot; title=&quot;Ban encryption options being provided in createCollection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79496&quot;&gt;&lt;del&gt;SERVER-79496&lt;/del&gt;&lt;/a&gt; in order to investigate banning the encryption options. This should prevent the creation config string from being propagated invalidly&lt;/p&gt;</comment>
                            <comment id="5601385" author="JIRAUSER1264163" created="Mon, 31 Jul 2023 11:17:35 +0000"  >&lt;p&gt;The creation string is shown to the user if performing a collStats command on the collection as can be seen here:&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;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;&amp;gt; db.runCommand({collStats: db.test.getName()})&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;{&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;  ns: &apos;test.test&apos;,&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;  ...&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;  wiredTiger: {&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;    metadata: { formatVersion: 1 },&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;    creationString: &apos;access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none,write_timestamp=on),block_allocation=best,block_compressor=snappy,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,import=(compare_timestamp=oldest_timestamp,enabled=false,file_metadata=,metadata_file=,repair=false),internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,tiered_storage=(auth_token=,bucket=,bucket_prefix=,cache_directory=,local_retention=300,name=,object_target_size=0),type=file,value_format=u,verbose=[write_timestamp],write_timestamp_usage=none&apos;,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;    type: &apos;file&apos;,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;    uri: &apos;statistics:table:collection-7-9017635690571954474&apos;,&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;    ...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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			&lt;/tbody&gt;
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&lt;p/&gt;

&lt;p&gt;Considering the previous comment and in light of this information I suspect some external tooling must&apos;ve been involved in order to first create a backup of the collection using collStats or some other way of obtaining the creationString. Then a subsequent restore would recreate the collection using the same creationString as the original.&lt;/p&gt;

&lt;p&gt;As such, closing this ticket as Cannot Reproduce since we currently cannot reproduce this issue and deem it to be caused due to external actors.&lt;/p&gt;</comment>
                            <comment id="5583289" author="JIRAUSER1264163" created="Fri, 21 Jul 2023 16:46:53 +0000"  >&lt;p&gt;I can&apos;t seem to reproduce this in 3.2+. My main issue with this is that the only way I can see for the metadata to contain the encryption config is if the collection is explicitly created with this option in the createCommand arguments. As far as I can tell the encryption config is only hooked in while &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fccb03c2efdd0fd888415e936c703a4e1ae22ed2/src/mongo/db/storage/wiredtiger/wiredtiger_record_store.cpp#L562&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;building the creation config string&lt;/a&gt;. This string is never leaked into what goes into the collection catalog since it only stores what &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4761d14b3921be3fcd3c205d6f22fafa07c76527/src/mongo/db/storage/durable_catalog.cpp#L303&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the user provided CollectionOptions contains&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;This has been the case &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0752c8b593456d1b8a68c36b87d2d2129b40ad48/src/mongo/db/storage/kv/kv_catalog.cpp#L464C1-L464C1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;since 3.2&lt;/a&gt; as far as I can tell.&lt;/p&gt;</comment>
                            <comment id="5583056" author="JIRAUSER1264163" created="Fri, 21 Jul 2023 15:31:47 +0000"  >&lt;p&gt;I&apos;ve been investigating how this could end up inside of the catalog information. There seems to have been a previous case of this (&lt;a href=&quot;https://jira.mongodb.org/browse/TOOLS-2038&quot; title=&quot;mongorestore fails when source is from the encrypted storage engine&quot; class=&quot;issue-link&quot; data-issue-key=&quot;TOOLS-2038&quot;&gt;&lt;del&gt;TOOLS-2038&lt;/del&gt;&lt;/a&gt;) in May 2018 so this has been an issue since then at the very least. I&apos;m going to center my efforts into the 3.X series of MongoDB to see how this occurred in the first place.&lt;/p&gt;</comment>
                    </comments>
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                    <name>Depends</name>
                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="2214322">SERVER-72229</issuekey>
        </issuelink>
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                                    </issuelinktype>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="2214320">SERVER-72228</issuekey>
        </issuelink>
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                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="2093806">SERVER-68122</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2405030">SERVER-79496</issuekey>
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