Bug 1401137

Summary: engine UI unaccesible because of stubborn error popup
Product: Red Hat Enterprise Virtualization Manager Reporter: Dusan Fodor <dfodor>
Component: ovirt-engineAssignee: Alexander Wels <awels>
Status: CLOSED DUPLICATE QA Contact: meital avital <mavital>
Severity: medium Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: dfodor, eedri, gklein, lsurette, michal.skrivanek, mkalinin, oourfali, rbalakri, Rhev-m-bugs, srevivo, ykaul
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Last Closed: 2016-12-05 15:46:23 UTC Type: Bug
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oVirt Team: UX RHEL 7.3 requirements from Atomic Host:
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logs from engine none

Description Dusan Fodor 2016-12-02 22:56:29 UTC 
Description of problem:
I was working with RHEVM without problem, but after I left it for a while and reopened, error occured. I kept getting error pop-up window saying "Error while executing action: A Request to the Server failed with the following Status Code: 500". When I closed it, i got another one: "Error while executing query: null".
When I closed this one, i got the previous error etc.

How reproducible:
Not sure, but there's a chance it's related with session timeout?

Version-Release number of selected component (if applicable):
RHEVM 4.0.6-4 and 4.0.6-3
JBEAP 7.0.3 (manual installed non latest version since with latest 7.0.4 there's bug 1400619 related)

Steps to Reproduce:
1. install & start RHEVM
2. open UI and wait
3.

Actual results:
Error popup you can't get rid of

Expected results:
Working UI

Additional info:
Logs attached (4.0.6-4 and 4.0.6-3 were tried on same engine database so they're in same log)
Comment 2 Oved Ourfali 2016-12-04 06:33:17 UTC 
Can you please attach the complete server, engine and ui logs?
Comment 3 Dusan Fodor 2016-12-04 08:10:48 UTC 
Created attachment 1227880 [details]
logs from engine
Comment 4 Oved Ourfali 2016-12-04 08:51:13 UTC 
Alexander - can you take a look?

Dusan, can you please clear your cache, close the browser, open it and then try the same?
Comment 5 Alexander Wels 2016-12-05 13:35:34 UTC 
Looking at the engine log, I see a very sick system. The engine cannot communicate with HOST1 or 2. Also looking at the server.log it appears the browser is running a client permutation that doesn't exist on the server anymore, and thus all of the requests are being rejected (maybe you upgraded/downgraded while the browser was still open?).

I would do 2 things:

1. restart the engine to hopefully clear out the task queue, and maybe restore communication with the hosts.
2. Refresh the browser to load the correct permutation.
Comment 6 Oved Ourfali 2016-12-05 14:37:10 UTC 
Reducing the severity, as it doesn't seem like a real issue (see last comment).
Let's wait for the needinfo to be resolved and if it is a real issue I'll raise the severity accordingly.
Comment 7 Dusan Fodor 2016-12-05 15:44:29 UTC 
Alexander, the "sickness" of system came probably because of experimental switching rhev for 4.0.6-3 while preserving engine database, but error itself occured before that, while system was fine and clean.
Nevertheless, after cleaning browser cache & reopening it works normally.
(which is strange because 3 days ago the same cleanup didn't change anything)
Comment 8 Oved Ourfali 2016-12-05 15:46:23 UTC 
Dusan - thanks for testing this.
I'm Closing.
Please reopen if it happens again.
Comment 9 Michal Skrivanek 2016-12-08 08:36:39 UTC 
Actually, this is very likely the problem discussed in bug 1402401

*** This bug has been marked as a duplicate of bug 1402401 ***