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

Continuously increasing memory consumption by glance Adviser

Issue

GlancePlus’s glance Adviser leaks memory when running continuously.

Adviser is used by the WLM data collectors glance_app, glance_gbl,

glance_prm, glance_prm_byvg, and glance_tt.

Workaround

This memory leak is fixed in GlancePlus C.03.35.00. On HP-UX 11i V1.0,

the best way to get this upgrade is to install GlancePlus when installing the

11i Enterprise or 11i Mission-critical Operating Environments.

WLM enables/disables SLOs at end of interval

Issue

WLM enables and disables time-based SLOs only at the end of an interval.

This interval is 60 seconds by default and can be changed with the

wlm_interval keyword in your configuration file.

SLOs are time-based when you set their condition or exception keyword

values in the configuration file.

If your interval is too long, an SLO may not be enabled as indicated in the

configuration. For example, assume the interval is 1800 seconds (30

minutes). Also assume that one SLO is supposed to have the entire system

to itself for a short period of time, with WLM enabling that one SLO for 20

minutes while disabling all other SLOs for the same 20 minutes. If these 20

minutes begin at 3pm everyday, but the interval ends at 3:15pm, your

configuration does not actually go into effect until 3:15pm. Moreover, it is

not changed again until 3:45pm.

Workaround

Be aware of how your interval and time-based SLOs interact and adjust

them accordingly.