xrfkey=ichBinEinBerlinR failed with error code 12002 (source: 1) OR System Hang
Article Number: 000046836 | Last Modified: 2019/01/13
Clients report performance degrading, or intermittent hang.
They restart services and performance returns to normal but the problem will reoccur after a period of a few days.
Qlik Sense Enterprise - November 2017 Patch 3 or earlier
When the QRS API Thread crashes, it is unable to recover by itself, causing the whole Qlik Sense system to hang.
The issue is noted in the release notes.
The issue can be confirmed by a TSE inspecting the Archive Engine system trace logs.
Inspection of the archive engine trace logs show "... xrfkey=ichBinEinBerlinR failed with error code 12002 (source: 1) ..." at the end of rows of the log sequence.
Upgrade to Qlik Sense November 2017 release -- patch 4