Hello,
First timer here, and fairly inexperienced...
I have an OpenSolaris kernel version #104 Build from Nexenta Systems, and we
are seeing a problem with idmapd using too much memory. It looks like it could
be leaking. The error message reported actually says "idmapd/4 allocates
1457MB, which is more than configured maximum".
Here is the fault we are seeing:
n...@leopard-6:/$ show trigger memory-check -v
PROPERTY VALUE
name : memory-check
type : trigger
info : Monitor free memory in the system
state : ready
status : enabled
flags : maintenance on max fail | clear old faults
period : every 12 minutes
trace_level : 1
enable_swap_check : 1 # Non-zero value means that swap space
utilization is being monitored
: #
free_ram_notice : 5 # Free memory low threshold (percentage
of total RAM)
: # Alarm (severity=notice) is raised if
the free memory gets below this threshold
free_swap_critical : 10 # Critically low free swap space
threshold (percentage of total swap space)
: #
free_swap_notice : 25 # Swap space low threshold (percentage
of total swap space)
: #
interval : 5 # Sampling time interval (seconds)
: #
max_fault_cnt : 5 # Number of times to register the fault
condition prior to generating email notification
: #
max_rss_suspect : 100 # Maximum resident set size (RSS) of
any process in the system (megabytes)
: # Alarm (severity=notice) is raised if
any process in the system occupies more than the specified RSS
num_procs : 8 # Number of top memory-consuming
processes to report
: #
paging_critical : 10 # Critically high paging intensity
threshold (percentage of pages loaded from on-disk swap)
: # Alarm (severity=critical) is raised
if the intensity of paging to disk (scan rate) gets beyond this critical
threshold
vmstat_aggr_max : 60 # Statistics aggregation period
(seconds)
: #
-------------------------------------------
TRIGGER FAULT COUNT SEVERITY TIME
memory-check 3 149 NOTICE Tue Feb 24 19:48:06 2009
The appliance is low on free memory - remains less than 5% of total RAM and
idmapd/4 allocates 1457MB, which is more than configured maximum
PRSTAT:
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
326 daemon 1459M 1457M sleep 59 0 0:03:38 0.0% idmapd/4
601 root 73M 53M sleep 58 0 0:25:41 0.1% nms/1
20545 root 35M 31M sleep 59 0 0:00:14 0.0% nmv.py/5
635 root 32M 30M sleep 59 0 0:00:03 0.0% nmc/1
748 root 20M 18M sleep 59 0 0:00:00 0.0% hosts-check/1
629 root 19M 17M sleep 59 0 0:00:00 0.0% volume-check/1
1193 root 19M 17M sleep 39 0 0:00:00 0.2% memory-check/1
714 root 19M 17M sleep 59 0 0:00:01 0.0% disk-check/1
Total: 56 processes, 252 lwps, load averages: 0.02, 0.01, 0.01
The appliance has 1 outstanding fault.
Here is the memory info for this system:
n...@leopard-6:/$ dtrace memory swapinfo
RAM _______Total 16378 MB
RAM Unusable 8 MB
RAM Kernel 13856 MB
RAM Locked 2 MB
RAM Used 1873 MB
RAM Free 638 MB
Disk _______Total 2039 MB
Disk Resv 1878 MB
Disk Avail 161 MB
Swap _______Total 2505 MB
Swap Resv 1878 MB
Swap Avail 627 MB
Swap (Minfree) 2046 MB
Any advice or suggestions?
Thank you,
John Keiffer
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