Occasionally, you might encounter application placement behavior that is not expected. This topic describes some common things to look for when application placement is not working, or not working the way that you expect.
Depending on your administrative role, you are allowed specific privileges when configuring the autonomic managers. The following list shows the administrative roles and privileges for configuring the autonomic managers:
If the problem still persists after making these suggested changes and restarting the cell, verify the following problems.
You must save dynamic clusters to the master repository before making changes to the server template. If you have dynamic cluster members that do not inherit the properties from the template, the server template probably incurred changes in an unsaved workspace. To fix this issue, delete the dynamic cluster, then recreate it.
Save your changes to the master repository. You can ensure that your changes are saved to the master repository after clicking Finish, by clicking Save in the message window in the top frame. Click Save again in the Save to Master Configuration window. Click Synchronize changes with nodes.
You can enable the application placement controller logs with the apc.log.enablePlacementLog custom property. To change the size and number of log files, edit the apc.log.LogFileSize and apc.log.numHistoricalFiles custom properties.
[7/23/08 10:42:12:086 EDT] 0000006f APCXDMapHelpe I DCPC400I: Application Placement Controller Input is Cluster name is dc1: Cluster's properties: Type=DYNAMIC, Operational Mode=AUTOMATIC, Minimum Instances=2, Maximum Instances=2, Isolation Preference=None, Vertical Stacking Number=Disabled, Lazy Start Time=Disabled, Idle Stop Time=Disabled, Current Memory Size=371.2 MB, Maximum Heap Size=256.0 MB Cluster's Demands: CPU Demand=0.0, Memory Demand=0.0 Cluster's Utility: {UtilityFunctionLinear extantDemand=0.0, utility=1.0} Cluster's Node Membership: jpcammar01Cell01/elara11Node01, jpcammar01Cell01/elara11Node02, Cluster's Members: jpcammar01Cell01/elara11Node01/dc1_elara11Node01, jpcammar01Cell01/elara11Node02/dc1_elara11Node02, Cluster's Placements: None [7/23/08 10:42:12:090 EDT] 0000006f APCXDMapHelpe I DCPC400I: Application Placement Controller Output is Cluster name is dc1: Cluster's properties: Type=DYNAMIC, Operational Mode=AUTOMATIC, Minimum Instances=2, Maximum Instances=2, Isolation Preference=None, Vertical Stacking Number=Disabled, Lazy Start Time=Disabled, Idle Stop Time=Disabled, Current Memory Size=371.2 MB, Maximum Heap Size=256.0 MB Cluster's Demands: CPU Demand=0.0, Memory Demand=0.0 Cluster's Utility: {UtilityFunctionLinear extantDemand=0.0, utility=1.0} Cluster's Node Membership: jpcammar01Cell01/elara11Node01, jpcammar01Cell01/elara11Node02, Cluster's Members: jpcammar01Cell01/elara11Node01/dc1_elara11Node01, jpcammar01Cell01/elara11Node02/dc1_elara11Node02, Cluster's Placements: elara11Node02/dc1_elara11Node02, elara11Node01/dc1_elara11Node01,