The following table provides the current default values for some key performance parameters of the Cloud Manager Orchestration Server. Although the server is fine-tuned by default for optimal performance at normal loads, if you want to perform hundreds of provisioning actions simultaneously you can change some of the default settings for increased server performance in such a scenario.
Table B-1 Default Parameters of the Cloud Manager Orchestration Server
Parameter Name |
Shipping Default Value |
Changing or Displaying the Parameter Configuration |
---|---|---|
File Descriptors Limit |
2048 |
(Optional) You can change the value as shown below: /etc/init.d/novell-zos-server: ulimit -n <new_limit> |
Java Heap Space |
2048 MB |
Create a file of the following name: /opt/novell/zenworks/zos/server/conf/cmosadmin.properties Add the following line to the newly created file: default.jvmargs=-Xmx2560m |
PermGen Space |
512 MB |
Create a file of the following name: /opt/novell/zenworks/zos/server/conf/cmosadmin.properties Add the following line to the newly created file: default.jvmargs=-XX:MaxPermSize=1536m |
Audit Queue Size Max |
200 |
Increase the value of this parameter by using the following command: zosadmin set --mbean="local:facility=audit" --attr=QueueSizeMax --type=Integer --value=1000 |
MaxRunJobWaitTimeout |
120000 |
You can change the value of this parameter as shown below: zosadmin set --mbean="local:facility=broker" --attr=MaxRunJobWaitTimeout --type=Integer --value=<time_in_milliseconds> |
MatchingResourcesCheckinterval |
30000 |
Increase the value of this parameter by using the following command: zosadmin set --mbean="local:facility=broker" --attr=MatchingResourcesCheckInterval --type=Integer --value=600000 |
Kernel ARP Threshold Values |
|
Set these values higher than the default. For example: cat /proc/sys/net/ipv4/neigh/default/gc_thresh1 = 256 cat /proc/sys/net/ipv4/neigh/default/gc_thresh2 = 1024 cat /proc/sys/net/ipv4/neigh/default/gc_thresh3 = 2048 |
Job Limits:
|
matrix.maxtopjobs = 200 matrix.maxqueued = 300 matrix.maxactive = 400 |
Change the Grid Object default values in the Orchestration Console as follows: matrix.maxtopjobs = 600 matrix.maxqueued = 700 matrix.maxactive = 1000 |