Event ID 6398

Question

I have two servers in an on-site SharePoint 2013 service. I didn't set it up so I'm working my way through it trying to figure it all out. I've managed to drastically reduce the number of errors in the Event Log but some are persistent. One is Event ID 6398:

The Execute method of job definition Microsoft.Office.Server.UserProfiles.LMTRepopulationJob (ID bcd77247-d366-4f21-8b7e-f677980fcc03) threw an exception. More information is included below.

Unexpected exception in FeedCacheService.IsRepopulationNeeded: Connection to the server terminated, check if the cache host(s) is running.

I've done some reading and I can tell you that the Distributed Cache service is running, according to the Central Administration site. There are no failed jobs in Job History.

I did notice that the AppFabricCachingService is only up on one server but I've read that this is normal. In fact the second server doesn't seem to do much at all.

My research so far has got me to this point. It appears I need to do this:

Remove-SPDistributedCacheServiceInstance

Add-SPDistributedCacheServiceInstance

Since I'm learning this as I go along what I'm trying to figure out is whether that's likely to break anything?

Any useful suggestions will be very welcome.

Thanks.

trevor seward · Answer

Have you verified Dist Cache is *really* running? Use:Use-CacheClusterGet-CacheHostIt will report UP, DOWN, or UNKNOWN.

james begent · Answer

HostName : CachePort&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Service Name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Service Status Version Info--------------------&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;------------&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -------------- ------------SHARE1:22233 			AppFabricCachingService UP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3 [3,3][1,3]SHARE2:22233			AppFabricCachingService DOWN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3 [3,3][1,3]&nbsp;

trevor seward · Answer

Ok cool, so you've got something wrong with SHARE2.
&nbsp;
On SHARE2, you can remove it as a Dist Cache and re-add it. You should also check the Windows Firewall (or other host-based FW/network FW between SharePoint servers if applicable) to verify the ports are open for AppFabric. Out of the box, SharePoint will add the exception and you'll find it listed under AppFabric.

james begent · Answer

OK, so https://docs.microsoft.com/en-us/powershell/module/sharepoint-server/remove-spdistributedcacheserviceinstance?view=sharepoint-ps says "Removes an instance of the distributed cache service from a local server" - I go to SHARE2, do the Remove and Add, then run the query again.But...I start SharePoint 2013 Management Shell (Run As Administrator).&nbsp; There are lots of error messages, there's a common theme that the thing it's trying to process is 'null' and won't work.I try the first command anyway to see if I can fix it.Remove-SPDistributedCacheServiceInstance : Cannot access the local farm. Verify that the local farm is properly configured, currently available, and that you have the appropriate permissions to access the database before trying again.At line:1 char:1+ Remove-SPDistributedCacheServiceInstance+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&nbsp;&nbsp;&nbsp; + CategoryInfo&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : InvalidData: (Microsoft.Share...ServiceInstance:SPCmdletRemoveD...ServiceInstance) [Remove-SPDistributedCacheServiceInstance], SPCmdletException&nbsp;&nbsp;&nbsp; + FullyQualifiedErrorId : Microsoft.SharePoint.PowerShell.SPCmdletRemoveDistributedCacheServiceInstanceIn Services, it says that AppFabricCachingService should start automatically but it's stopped.&nbsp; If I start it the service stops after a few minutes with Event ID 7034 "The AppFabric Caching Service service terminated unexpectedly."The event logs don't have any other errors.

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Event ID 6398

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