IO Server uses a lot of CPU

Document ID : KB000087262
Last Modified Date : 14/04/2018
Show Technical Document Details
Issue:
Error Message :
No error

Patch level detected:Dollar Universe 6.6.24
Product Version: Dollar.Universe 6.6.24

Description :The CPU usage of the IO process is high even when there is no activity on the node.
Environment:
OS: All
Cause:
Cause type:
Defect
Root Cause: On OpenVMS only, the check of the permissions and owner of the files on the uproc directory was fixed on version 6.6.21, as a side-effect this operation when a lot of files were present on the folder, generated a lot of unnecessary cpu usage by the IO process.
Resolution:
The solution is applicable to every OS starting on Dollar Universe version 6.7.21.
After upgrading, you shhould set the variable U_RESTORE_UPR_RIGHTS to N (disable) from the node setting to avoid high CPU usage by the IO process.

Fix Status: Released

Fix Version(s):
Component: Application.Server
Version: Dollar.Universe 6.7.21
Additional Information:
Workaround :
N/A