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mila_ayuhara
New Contributor III

QlikView Distribution Service (12.10. SR3) hangs up while trying to access LoadBalancer.xml

Hi @ all ...

2 weeks ago we upgraded our QV-environment to Version 12.10 SR3 and since then the QV Distribution Service hangs up periodically. It's trying to get ReadWrite-Access to the LoadBalancer.xml but somehow it is locked. Except QV there is no other programm installed on the server. The only solution is to restart the Windows Server. A deinstallation of our antivirus had no effect.

Here are the times when the first Log-Entry tells me when it hangs: (the time is different so there is no Task causing it)


06.03.2017 20:02:44

07.03.2017 21:16:36

09.03.2017 22:28:45

13.03.2017 22:02:06


The error message we've got from the windows log is here:


LoadMeasurementStorer: An unexpected error occurred while trying to update the load balancer file.. Exception=System.Exception: Failed to open C:\ProgramData\QlikTech\DistributionService\LoadBalancer.xml with ReadWrite access after 1965 retries. Exceptions= ||    Der Prozess kann nicht auf die Datei "C:\ProgramData\QlikTech\DistributionService\LoadBalancer.xml" zugreifen, da sie von einem anderen Prozess verwendet wird. ||    bei QDSMain.Clustering.ClusterFileHandler.OpenFile(FileAccess fileAccess) ||    bei QDSMain.Support.LoadBalancing.LoadStorage.OpenWrite(Func`2 readWriteLoads) ||    bei QDSMain.Support.LoadBalancing.LoadManager.ReadWriteAccess(Func`2 readWriteLoads) ||    bei QDSMain.Support.LoadBalancing.LoadMeasurementStorer.StoreLoadMeasurement(Double load, Boolean isOverloaded, Boolean hasAvailableRegularQvb, Boolean hasAvailableDedicatedQvb, Boolean preventRegularTask, DateTime timeStamp)

Would be nice if anybody has an idea.

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1 Solution

Accepted Solutions
mila_ayuhara
New Contributor III

Re: QlikView Distribution Service (12.10. SR3) hangs up while trying to access LoadBalancer.xml

Thx jrepucci15‌ for ur reply. We found a solution / the reason for our problem.

We are running a backup saving our whole qv-environment. This causes the file-lock. We removed the backup for the specific folder and wohoo .. no problems anymore

2 Replies
jrepucci15
Contributor

Re: QlikView Distribution Service (12.10. SR3) hangs up while trying to access LoadBalancer.xml

Are you saying that sometimes it can write to the xml file and sometimes it cannot?

It sounds like a permissions issue.

When access fails, who "owns" the .xml file?

When access fails, are you able to open the .xml file in r/w mode?

Note: I'm also running v12.10 SR3 and not having any issues.  But I'm only running a single server.

mila_ayuhara
New Contributor III

Re: QlikView Distribution Service (12.10. SR3) hangs up while trying to access LoadBalancer.xml

Thx jrepucci15‌ for ur reply. We found a solution / the reason for our problem.

We are running a backup saving our whole qv-environment. This causes the file-lock. We removed the backup for the specific folder and wohoo .. no problems anymore

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