Description of problem: Whenever an exception is thrown in the front end code, unrelated parts of the GUI tend to stop working (e.g. 'new' and 'import' buttons under Networks tab). I have noticed this when pressed the 'Cancel' button on Import networks window under Networks tab. When pressed 'Cancel' (button is not responding- see BZ 1215709), after that some buttons tent to stop working, such 'new' and import' under Networks tab. Refreshing UI fix it. Version-Release number of selected component (if applicable): 3.6.0-0.0.master.20150412172306.git55ba764.el6 Steps to Reproduce: 1. Go to Networks main tab, press 'Import' > press 'Cancel' button 2. Exit Import networks window with 'x' 3. Try to press on 'new' or 'import' buttons in the Networks tab Actual results: Buttons are not working. refreshing UI fix it. Expected results: Should work as expected. Additional info: See BZ- 1215709
kind of a duplicate of bug 1049409, I think.
ovirt-3.6.0-3 release
Please note, this bug is still exist on 3.6.0-0.12.master.el6 Same behavior..with the same steps..
This bug is still exist on 3.6.0-0.13.master.el6 same behavior with the same steps.
Unfortunately, adding global uncaught exception handler doesn't solve the problem of the GUI left in "broken" state after a runtime exception occurs (and prevents subsequent code from being executed). I'd suggest to implement a GUI dialog that informs the user of a runtime exception along with: - suggestion to reload the web page - pointing to client-side logs that can be used to report the problem Fixing this in code is not easy as it would involve heavy defensive programming (null checks and/or try-catch blocks, etc.) applied to existing code (refactoring). @Einav, what do you think?
After talking with Einav, we might want to notify the user of a runtime exception via PatternFly/Bootstrap alert box, shown in the top center part of the GUI: https://www.patternfly.org/widgets/#alerts
(In reply to vszocs from comment #6) > After talking with Einav, we might want to notify the user of a runtime > exception via PatternFly/Bootstrap alert box, shown in the top center part > of the GUI: > > https://www.patternfly.org/widgets/#alerts indeed - thanks, Vojtech - sorry for not updating the BZ myself :)
Note that global alert messages (as mentioned in comment #6) are currently available in WebAdmin only.
Removing link to patch "Enable contextual alerts in UserPortal" as this BZ is already ON_QA. Sorry for the noise.
(In reply to vszocs from comment #8) > Note that global alert messages (as mentioned in comment #6) are currently > available in WebAdmin only. moving BZ back to POST - let's use this BZ to track the user portal change as well.
Target release should be placed once a package build is known to fix a issue. Since this bug is not modified, the target version has been reset. Please use target milestone to plan a fix for a oVirt release.
[BTW, not sure why BZ was moved to ON_QA on 2015-10-15 - relevant patches were not included in any recently-released 3.6 build]
Vojtech: once patch for user portal is merged, please move to MODIFIED. Afterwards, I will clone the BZ for ovirt-3.6.z, and you will be able to backport the patch in the context of the cloned BZ.
Verified in rhevm-4.0.0.6-0.1.el7ev.noarch (build 4.0.0-19). ovirt-engine-webadmin-portal-4.0.0.6-0.1.el7ev.noarch Verified according to reproducer in comment 0. UI exception display is enabled: # engine-config -g DisplayUncaughtUIExceptionsDisplayUncaughtUIExceptions: true version: general Closing the Networks -> Import dialog via Close button or 'X' works. No UI exception is thrown. The GUI is still operational, menu buttons New / Import / Edit/ Remove also work as expected.
oVirt 4.0.0 has been released, closing current release.