HP-UX Workload Manager A.02.03.01 Release Notes for HP-UX 11i V1.0 and HP-UX 11i V2.0

HP-UX Workload Manager Release Notes
Known problems and workarounds
15
No metrics on startup or reconfiguration
Issue
Metrics have no value on WLM startup or reconfiguration. WLM cannot
work toward any SLOs without metrics.
Workaround
Data collectors should report metrics as soon after startup or
reconfiguration as possible.
Reaching the system V semaphore limit
Issue
If your system has many system V semaphores in use, WLM’s use of
semaphores may push the total number of semaphores over system
limits—especially if the WLM configuration contains a large number of data
collectors. The WLM daemon wlmd creates two semaphore sets: one
containing a single semaphore; the other containing a semaphore for each
data collector in the WLM configuration.
If this system limit is reached, wlmd prints the following error and exits
before the first WLM interval begins:
Cannot allocate a system V semaphore set of size x: Increase
the system-imposed limits.
Workaround
Use /usr/sbin/sam to increase the system limits.
On HP-UX 11i V1.0 and later, increase the following kernel parameters:
semmns Max number of overall semaphores
semmsl Max number of semaphores allowed in a semaphore set