| 9.2.5 P3 and also 9.2.3 100% CPU and freezing completely [message #139745] |
Thu, 10 May 2018 17:38  |
CoBa
Messages: 7
Registered: May 2018
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Hi all,
I was running 9.2.3 stable on an Ubuntu virtual server (running in vmware esxi 6.5) for a long while.
Than I decided to change to Debian 9 64 bit, put the OS and Kerio software one one virtual disk and the mailstore on another virtual disk. In the same time I upgraded to 9.2.5 P3.
The migration went well and it worked for a while, but the server started crashing, or better froze totally with 100% cpu usage which jumped from very little cpu usage to 100% in a short time.
After monitoring the logs for a long time and restarting after it crashed I could not find a clear cause.
So today I downgraded to 9.2.3 but only after 8 minutes of running it froze again. Restarted it and running again now until te next stall of death.
Also on the first tests with 9.2.5 P3 on Debian 9 I found it frozen one time. And users weren't connected at all cause it was an isolated test environment.
Users are 99% Apples working via Cardav, Caldav, IMAP, one Apple working via Outlook 2016 and many iPhones and iPads working via ActivSync.
Anyone an idea where I can start looking for a cause? Kerio Logfiles aren't giving any clues.
I had contact with support already, but I came to advice to upgrade to the latest version, but I am afraid for even more problems.
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| Re: 9.2.5 P3 and also 9.2.3 100% CPU and freezing completely [message #139756 is a reply to message #139746] |
Mon, 14 May 2018 09:38  |
Maerad
Messages: 275
Registered: August 2013
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Turn on debug, the antivirus might make problems or the directory/file rights are wrong. Maybe the indexing could be a problem too.
Personally I would deinstall kerio and install it again. Also put the mail storage into the program directory and keep to the standards, if there is no really important reason to split them.
Believe me, you will save yourself some headache from it.
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| Re: 9.2.5 P3 and also 9.2.3 100% CPU and freezing completely [message #139757 is a reply to message #139756] |
Mon, 14 May 2018 10:52 |
CoBa
Messages: 7
Registered: May 2018
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Hi, thanks for your reply.
I don't use antivirus.
I turned on debug and many options selected, but nu clues so far.
I will check on the rights.
Everything I did was by installing Kerio connect fresh.
The splitting of server and data is common practice and makes disaster recovery of a crashed server installation or upgrading and keeping a safe copy of the previous server much easier cause theres much less data to be moved or copied. But I dunno if Kerio is becoming unstable of that.
What I realise now is that a chose Debian 9, but Kerio says the highest supported version is Debian 8. So I will first try Debian 8.
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