AppFabric and Distributed Cache

Question

Hi

We have been experiencing intermittent problems for users that access SharePoint 2013. Sometimes the images are distorted and other times some sites do not render. Error 'something went wrong' appears with a correlation ID. Recently I had to perform iisreset which did not restore normal functionality, then re-booted server which worked. I need to find a fix before the problem repeats itself. (its been ongoing before I took the job on)

I've tracked this down in the events and the error points to the distributed cache I think. Is there anything else I should be checking for?

05/22/2017 14:56:02.50 	w3wp.exe (0x102C)                       	0x1904	SharePoint Foundation         	DistributedCache              	air4a	Monitorable	Token Cache: Failed to get token from distributed cache for '0).w|s-1-5-21-862529981-1745561597-965413785-17542'.(This is expected during the process warm up or if data cache Initialization is getting done by some other thread).	e529f49d-7d34-405f-8d6e-1faeb186771c

The current version of AppFabric that's installed on the wfe and App server is v1.1 (1.1.2106.32), CU1

We are running 1 WFE and 1 APP server.

Under windows services > WFE  > AppFabric Caching Service - set to Automatic and on App Server it is disabled.

SharePoint > Services on Server >WFE >Distributed Cache - Started
SharePoint > Services on Server >APP >Distributed Cache is not listed

The link below lists CU with latest being CU7. I wanted to confirm which CU I should be looking at installing?

https://support.microsoft.com/en-us/help/3092423/cumulative-update-7-for-microsoft-appfabric-1.1-for-windows-serverI
Think we have .net 4.5 already installed, both servers need windows security updates also and the last CU SharePoint CU 15.0.4779.1000   -   ​​December 2015  -

Can I install the AppFabric CU before SharePoint CU's or is the Appfabric CU already included in one of the SharePoint CU's?

Thanks

Answer 1

Hi Jones,

From the error message you provide, it seems the issue which need to apply AppFabric CU.

You can follow the steps to troubleshoot the relevant issue:

https://www.habaneroconsulting.com/insights/sharepoint-2013-distributed-cache-bug#.WSVUTYVOI5s

https://sharepoint.stackexchange.com/questions/136644/do-we-have-to-install-app-fabric-distributed-cache-cu-update-in-all-servers-in-f

And I cannot find any official article mentioned whether SharePoint CU include AppFabric CU, but per my research, it seems that we need to install AppFabric CU except SharePoint CU in your case.

Besides, to get more information about your certain issue, check the ULS log, ULS log is at:

C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\LOGS

Best regards,

Grace Wang

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