Suddenly Knime start to freeze while opening

KNIME Analytics Platform
1

Hi Guys

Today KNIME (2.11.3, x64, Arch Linux ) was working perfectly fine. I closed it for some reason and then when I tried to reopen, it tooks ages. Another issue is that nodes repository is populating too slow.

Same problem with the new release (2.12.0).

I am attaching output from jstack command

Regards

2

Looks like there is problem opening a Jar file. Do you have a virus scanner that scans all files on access? Some scanners slow down KNIME by a factor of 20 or more.

3

Hi Thor. Thank you for your reply.

As far as I know there is no virus scanner installed on the machine. I will have to ask the sysadmin, but I don't know when I will get an answer.

Regards.

4

Hi,

In that case I do something perhaps not really recommended but it worked many times.

Close Knime. Within your Knime workspace delete the .metadata folder. Re-open Knime.

Best regards,

Fabien

5

Hi Fabien,

Thank you for the idea, but it doesn't work for me. As a matter of fact I try something similar - I started knime with new workspace. And that also didn't work.

Now I am waiting reply from sysadmin :)

Regards

UPDATE:

I noticed that after KNIME is started it shows this message in console area:

WARN  KNIMEApplication$3
Potential deadlock in SWT Display thread detected. 
Full thread dump will follow as debug ouput.

Similar problem is described here so I am attaching knime log file.

 

6

It still shows the same pattern as in your first post: KNIME is busy trying to open a ZIP file. This is done during startup when all extensions are loaded and is usually a matter of 10-20 seconds. In your case it takes much longer which indicates that there might be a problem in your system.

7

Hi guys

The problem is solved with good old restart.

I just asked the sysadmin to reboot the machine in order to see will there be any differnces. And now everything is fine.

Regards