[Hyperic-hq-discuss] SIGAR does not return memory usage for some processes

[JeanDagenais2 <sig...@hy...>]

Hello,

I am starting to deploy my new agent on our production servers, and I found out that SIGAR does not return the memory usage for some processes.

This is happening at least on Solaris/Sparc and Solaris/Intel

This is how top show process 26694

load averages:  0.57,  0.63,  0.60;                    up 546+01:29:02                                                                                              05:49:42
117 processes: 116 sleeping, 1 on cpu
CPU states: 99.3% idle,  0.1% user,  0.6% kernel,  0.0% iowait,  0.0% swap
Memory: 32G phys mem, 22G free mem, 31G total swap, 31G free swap

   PID USERNAME LWP PRI NICE  SIZE   RES STATE    TIME    CPU COMMAND
 26694 prd10    111  59    0   16G 4360M sleep   64:00  0.14% java
  7272 dagenaij   1  59    0 3200K 1992K cpu/3    0:01  0.09% top
 28040 prd10     39  59    0  904M  239M sleep    1:43  0.04% java

This seems to happen to 3 processes out of 120.

Initially I thought about a security issue, but even my own top process show the same behavior.

sigar> ps
3657    root    Mar14     0       0     -       S       8:47    perf64
7272    dagenaij        03:17     0       0     -       S       0:0     top
26694   prd10   15:44     0       0     -       R       63:53   java