Dollar Universe nodes encounter a freeze problem with a very high frequency

Products

• CA Automic Dollar Universe

Issue/Introduction

Affects Release version(s): 5

Error Message :
Following message sequence in universe.log:
2012-12-14 17:31:39 0018072/uxshw /u_view_file /000000000 - system('cat /applis/universe/UNIV50/temp/U_TMP_00004698') returns error 256
br/> 2012-12-14 18:06:28 0021133/uxioserv /u_trt_iopurge /000000000 - Starting online purge...
br/> 2012-12-14 18:06:28 0021133/uxioserv /io_purge /000000000 - IO [X] online purge start
br/> 2012-12-14 18:06:32 0021133/uxioserv /io_purge /000000000 - IO [X] online purge end
br/> 2012-12-14 18:06:32 0021133/uxioserv /u_trt_iopurge /000000000 - End of online purge.
br/> 2012-12-14 19:06:40 0021133/uxioserv /u_trt_iopurge /000000000 - Starting online purge...
br/> 2012-12-14 19:06:40 0021133/uxioserv /io_purge /000000000 - IO [X] online purge start
br/> 2012-12-14 19:06:45 0021133/uxioserv /io_purge /000000000 - IO [X] online purge end
br/> 2012-12-14 19:06:45 0021133/uxioserv /u_trt_iopurge /000000000 - End of online purge.
br/> 2012-12-14 20:01:08 0027448/uxshw /u_view_file /000000000 - system('cat /applis/universe/UNIV50/temp/U_TMP_00006B38') returns error 256
br/> 2012-12-14 20:06:52 0021133/uxioserv /u_trt_iopurge /000000000 - Starting online purge...
br/> 2012-12-14 20:06:52 0021133/uxioserv /io_purge /000000000 - IO [X] online purge start
br/> 2012-12-14 20:06:58 0021133/uxioserv /io_purge /000000000 - IO [X] online purge end
br/> 2012-12-14 20:06:58 0021133/uxioserv /u_trt_iopurge /000000000 - End of online purge.

Patch level detected:Dollar Universe 5.6.0
Product Version: Dollar.Universe 5.6.0 FX25010

Description :Dollar Universe nodes encounter a freeze problem problem with a very high frequency.

Environment

OS: All Unix
OS Version: All

Cause

Cause type:
Configuration
Root Cause: The online purge was activated and configured to run every hour and the UXMAXFD variable was left at 256.

Resolution

On his linux/unix system, apply the following settings:
- The purge was executed once daily .
- The uxmaxfd increased to 2048, according to ulimit.

Fix Status: Released

Fix Version(s):
Component: Application.Server
Version: Dollar.Universe 5.6.0 FX25010

Additional Information

Workaround :
N/A