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Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Path Finder

After a recent deploy-server reload, all of my SplunkTAWindows clients except for 5 started showing up with the following client errors:

11-12-2015 14:43:24.037 -0800 WARN  ClientSessionsManager - ip=10.x.x.x name=946A6046-907B-408A-8887-77350DA2A96C Updating record for sc=Windows app=Splunk_TA_windows: action=Install result=Fail checksum=331432938900507147

The 5 that work are Exchange servers, run by a different system admin, but I can't find anything significantly different. We cleared this up before with newly deployed Universal Forwarders by deleting the SplunkTAWindows directory on the client machines and bouncing the UF, but I don't want to have to do this to 42 servers!

When I did my deploy-server reload, I was making changes in another app, only to set a TZ variable in a "local" props.conf for a particular sourcetype.

Does anyone have any clues about how to best fix this error permanently?

Thanks

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Motivator
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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Explorer

I'm having the same issue here. The initial push of SplunkTAwindows worked great. I edited the inputs.conf file, ransplunk reload deploy-server, now I'm receiving the same error as @craigkleen. Tried deleting the app on the UF, then ransplunk reload deploy-server again, and receive the same error again. Is there another work around for this or will this be fixed in the next release?

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Path Finder

As I said and @mikaelbje linked to, I figured out the deletion of SplunkTAwindows on the client and restarting the forwarder a while back, when it was just a couple servers that I was installing fresh on using the command line. It worked for a little while, then the error came back when I upgraded the app on the server and went to redeploy the client. I see yet another version has been deployed, so when I have time in January I guess I'll try to have my admins delete and re-install all the clients again. I seem to be getting some data still, but the errors continue.

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Communicator

Has there been any update on this? I'm having the same issue.

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Splunk Employee
Splunk Employee

Do you have spaces in your server class name? The message shows the Serverclass name as "Global", is that what it really is?

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Path Finder

I still haven't been able to fix this. I don't have spaces in the server class name. And, I don't see where @ssievert sees the server class name as "Global", it's clearly "Windows", and I did just double check that it doesn't have a space at the end either.

Most recently, I used the GUI to Uninstall the App, then I deleted $SPLUNKHOME/etc/deployment-apps/SplunkTAWindows and re-copied it from $SPLUNKHOME/etc/apps/, restarted the server, added the Windows Serverclass back to the app, set it to restart Splunkd on the clients, and it STILL comes back with Checksum failed. Still looking for clues...

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Splunk Employee
Splunk Employee

FYI. Had this same issue but with the SplunkTAoracle on a linux box. Physically deleting the app on the client server and restarting the client did the trick. This was a search head so the issue is not limited to the UF. This was on 6.3.0.

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Path Finder

So, I don't know if I resolved it, but I finally got myself access to a server with this problem. What I found in the c:\program files\splunkuniversalforwarder\var\log\splunk\splunkd.log was the following:

DeployedApplication - app=Splunk_TA_windows was already installed via search head cluster deployer, UI, CLI, or REST API; it may not be overridden via deployment server; remove existing app=Splunk_TA_windows via search head cluster deployer, UI, CLI, or REST API if you wish to install it via deployment server
03-29-2016 14:41:07.542 -0700 ERROR 

So, perhaps this is an artifact of my Deployment Server being the same server as an Indexer? Something I will fix in the future. I guess each time I update in the meantime, I have to have admins remove the directory so it deploys. Boo.

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Re: Why are we getting a deployment checksum failure on all universal forwarders with the Splunk Add-on for Microsoft Windows?

Splunk Employee
Splunk Employee

Check to see if the app being deployed via the deployment server contains an installsourcechecksum in its app.conf file. If it does, try removing that from the client and the deployment server and applying the change again.