topic Re: Log files lost after update in QlikView

Log files lost after update

danmartins — Mon, 26 Jan 2026 18:19:17 GMT

Hello there,

I've been using the log files generated by the server at C:\ProgramData\QlikTech\QlikViewServer to track usage and performance - but they have been reset after I updated the server to the latest SR version.

Is that a bug? if not, does anyone know where the older files would be moved to?

Thanks for the time,

Dan

Re: Log files lost after update

Bill_Britt — Tue, 14 Jul 2015 12:00:09 GMT

Hi,

I have never seen this happen. We do not delete log files, PGO, or setting files on a upgrade.

Bill

Re: Log files lost after update

Peter_Cammaert — Tue, 14 Jul 2015 12:23:21 GMT

Did you just run the installer for the new SR, or did you first uninstall the current version? The latter may have removed everything in ProgramData\QlikTech.

Peter

Re: Log files lost after update

Peter_Cammaert — Tue, 14 Jul 2015 12:24:17 GMT

Can you restore them from a backup of your QlikView Server?

Re: Log files lost after update

Bill_Britt — Tue, 14 Jul 2015 12:27:36 GMT

Hi Peter,

Logs are not touched by the uninstaller.

Bill

Re: Log files lost after update

Peter_Cammaert — Tue, 14 Jul 2015 12:30:00 GMT

Got it. Thanks, Bill.

Re: Log files lost after update

yura_ratu — Tue, 21 Jul 2015 11:48:37 GMT

HI Bill.

I have the same issue on two different Qlikvew servers after upgrade from SR5 to SR12 (just installed new version without uninstalling previous one). It was very unexpected to lost all logs. Looks like a bug

Re: Log files lost after update

Bill_Britt — Tue, 21 Jul 2015 11:54:21 GMT

Hi,

If you think it is a bug then open a ticket with support. I have just look for support cases for deleted logs and there are none.

Bill

Re: Log files lost after update

yura_ratu — Tue, 21 Jul 2015 12:06:16 GMT

So, they actually are not deleted, but were renamed from *.log to *.log.00 (by installer?)

and they become invisible for our log collectors, since they are looking for *.log files.

Dan might have had the same issue, if so the solution is to get back them 'log' extension

Thanks

Re: Log files lost after update

danmartins — Tue, 21 Jul 2015 12:13:37 GMT

Hi Guys,

sorry for the time it took to answer. After a careful look at the files I found that the Sessions Log was moved to a file named Sessions_SRVQLIKVIEW.log.00. All new entries are stored at Sessions_SRVQLIKVIEW.

I'm quite sure this was done by the installer/updater.

After copying the contents of the backup file into the log file, things are working fine.

Cheers and thanks for the time!

Dan Martins

Re: Log files lost after update

danmartins — Tue, 21 Jul 2015 12:17:25 GMT

Exactly! Seems we were writing at the same time. We found different solutions to the same problem, I'm sure both of them will do fine.

Thanks Yurii,

Regards!

Dan