topic How to solve problem with kv store after upgrading to Splunk enterprise version9? in Splunk Enterprise https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614620#M13997 <P>I recently upgraded our splunk enterprise to version9.0.1 but I do have problems with the kvstore. Any ideas on how to deal with this please?</P> Tue, 27 Sep 2022 16:29:50 GMT benedict 2022-09-27T16:29:50Z How to solve problem with kv store after upgrading to Splunk enterprise version9? https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614620#M13997 <P>I recently upgraded our splunk enterprise to version9.0.1 but I do have problems with the kvstore. Any ideas on how to deal with this please?</P> Tue, 27 Sep 2022 16:29:50 GMT https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614620#M13997 benedict 2022-09-27T16:29:50Z Re: problem with kv store after upgrading to splunk enterprise version9 https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614644#M13998 <P>Hi&nbsp;<a href="https://community.splunk.com/t5/user/viewprofilepage/user-id/249478">@benedict</a>&nbsp;</P><P>Can you describe the exact problem you are having? V9 does make some upgrades to the KV Store, you may need to upgrade the storage engine to "WiredTiger"</P><P><A href="https://docs.splunk.com/Documentation/Splunk/9.0.1/ReleaseNotes/MeetSplunk" target="_blank" rel="noopener">https://docs.splunk.com/Documentation/Splunk/9.0.1/ReleaseNotes/MeetSplunk</A></P><P><EM><SPAN>To take advantage of the most up-to-date KV Store in this latest release, Splunk Enterprise 9.0 comes with a set of tools to guide the upgrade of your KV store server version to v4.2, as well as the migration of your KV Store storage engine. These updates are required in Splunk Enterprise 9.0. See&nbsp;</SPAN><A class="" href="http://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/MigrateKVstore" target="_blank" rel="noopener">Migrate the KV store storage engine</A><SPAN>&nbsp;in the&nbsp;</SPAN><I>Admin</I><SPAN>&nbsp;manual to plan your migration.</SPAN></EM></P><P><A href="http://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/MigrateKVstore" target="_blank" rel="noopener">http://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/MigrateKVstore</A></P><P>&nbsp;</P> Tue, 27 Sep 2022 01:55:41 GMT https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614644#M13998 chaker 2022-09-27T01:55:41Z Re: problem with kv store after upgrading to splunk enterprise version9 https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614761#M14001 <P>Hi <a href="https://community.splunk.com/t5/user/viewprofilepage/user-id/165039">@chaker</a>,</P><P>Firstly I did an upgrade from version 8.2 to 9.0.1 in a non-prod environment which I had to migrate the kvstore storage to wiredTiger. Now the plan was to push this upgrade to my prod environment but since the prod environment still has the old DB (kv-store), it could overwrite the data and could lead to data loss in the prod environment. so this is my major problem.&nbsp;</P> Tue, 27 Sep 2022 13:40:15 GMT https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614761#M14001 benedict 2022-09-27T13:40:15Z Re: problem with kv store after upgrading to splunk enterprise version9 https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614779#M14004 <P>Hi</P><P>what you are meaning with “push to production”?<BR /><BR />The normal way is just upgrade first mongodb to WiredTiger and after that to do a splunk upgrade to 9.0.1. That will convert data to the newer version and not overwrite it.</P><P>r. Ismo</P> Tue, 27 Sep 2022 16:22:59 GMT https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614779#M14004 isoutamo 2022-09-27T16:22:59Z Re: problem with kv store after upgrading to splunk enterprise version9 https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614840#M14020 <P>Hi&nbsp;<a href="https://community.splunk.com/t5/user/viewprofilepage/user-id/249478">@benedict</a>&nbsp;</P><P>Follow this document to backup the KVStore.</P><P><A href="https://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/BackupKVstore" target="_blank">https://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/BackupKVstore</A></P><P>Here is the upgrade document for KV store for V8.0. Change version to match your exact point release.</P> Wed, 28 Sep 2022 00:12:18 GMT https://community.splunk.com/t5/Splunk-Enterprise/How-to-solve-problem-with-kv-store-after-upgrading-to-Splunk/m-p/614840#M14020 chaker 2022-09-28T00:12:18Z