I'm no programmer, but what I found seems to agree with what you are
saying.
http://jb2works.com/memoryleak/index.html
Here is my java info
[r...@nshpbx1 ~]# yum list installed |grep "java"
java-1.6.0-sun.x86_64 1.6.0.19-1.2
installed
java-1.6.0-sun-fonts.x86_64 1.6.0.19-1.2
installed
It is a straight ISO build with the only thing being updated is the
kernel (because of a major vulnerability). I used to build my systems
from scratch, but I got tired of running into issues others didn't have
and ezuce started releasing 64 bit builds.
If you can tell me exactly how to get the info you are looking for
related to each process, I would be glad to provide it.
On 11/23/2010 10:23 AM, Matt White wrote:
Java does have a garbage collection process and should never consume
all physical memory unless there is a leak....of course leaks seem to
be the all too common in java apps.
Java does not release the memory it has assigned for heap...but
virtual memory used by the jvm should be released with the normal
garbage collection process. I'm not sure if we set the Xmx heap size
but the defualt was 64MB for a long time. Perhaps sipx is setting the
Xmx value so high that it essential is set to consume all your memory.
I'd be interested in knowing if we look at a top of the different
process and see if screenshot you have is reporting VIRT memory or RES
memory.
What jvm version do you have? I know there was an known leak in
java.io that was recently fixed.
-M
>>> On 11/23/2010 at 10:33 AM, in message
<aanlktimii38dcxkmle2+ytwzlafcjg87a+mjhtklk...@mail.gmail.com>, Tony
Graziano <tgrazi...@myitdepartment.net> wrote:
that is JAVA,
This is considered normal. Java will consule the entire memory
available, it never releases it. That is how java functions.
Actually, it became so alarming someone took out the MEMORY graphs
because it bothered so many people that they had to remove it to stop
people from asking the same things over and over.
Java, as a "process" never gives up ram once it is consumed. It makes
it available to itself as needed. The only time you should "worry" is
when you start to consume SWAP.
On Tue, Nov 23, 2010 at 10:28 AM, Matthew Kitchin (public/usenet)
<mkitchin.pub...@gmail.com <mailto:mkitchin.pub...@gmail.com>> wrote:
I'm running I'm running sipXconfig (4.2.1-018971
2010-08-17T02:20:18 build20) 64 bit ISO build.
I rebooted last night to resolve a java/CPU issue.
There have been several threads started related to the high memory
usage in Sipx 4.2.1 .
I was looking at the performance graphs for the server since the
reboot. I noticed something interesting. Take a look at the
attached screenshot. I normally hate screenshots, but I couldn't
find a better way to show it in this case. My backups run at
midnight. It is very obvious in the CPU, memory, and IO graphs
when it runs. The interesting thing to me is, the memory
utilization doesn't drop at all after the backup is done. CPU and
IO both drop back down to normal, but memory never does. The
current TOP output is below.
Does anyone else see this behavior? Should it be expected?
Thanks,
Matthew
[r...@nshpbx1 ~]# top
top - 09:26:16 up 15:18, 1 user, load average: 0.42, 0.28, 0.22
Tasks: 145 total, 1 running, 144 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.3%us, 0.3%sy, 0.0%ni, 99.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 1.3%us, 0.7%sy, 0.0%ni, 97.0%id, 0.3%wa, 0.0%hi, 0.7%si, 0.0%st
Mem: 8177072k total, 4201668k used, 3975404k free, 232092k buffers
Swap: 6289436k total, 0k used, 6289436k free, 2669936k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4168 sipxchan 18 0 2414m 312m 12m S 0.0 3.9 5:33.36 java
4670 sipxchan 18 0 2334m 201m 9720 S 0.0 2.5 0:03.07 java
5041 sipxchan 18 0 2351m 130m 9860 S 0.3 1.6 0:46.81 java
5142 sipxchan 18 0 2339m 120m 9764 S 1.3 1.5 2:39.42 java
4942 sipxchan 20 0 2331m 68m 9792 S 0.0 0.9 0:32.61 java
4633 sipxchan 21 0 2318m 57m 9488 S 0.0 0.7 0:00.89 java
4915 sipxchan 21 0 2324m 50m 11m S 0.0 0.6 0:00.86 java
5452 sipxchan 15 0 277m 42m 5184 S 0.0 0.5 2:39.43 sipXproxy
4787 sipxchan 15 0 103m 23m 3036 S 0.0 0.3 0:07.32 ruby
3786 sipxchan 15 0 99.6m 23m 2724 S 0.0 0.3 0:01.32 sipxconfig-agen
4566 sipxchan 18 0 274m 23m 5360 S 0.0 0.3 0:05.30 freeswitch
4776 sipxchan 15 0 65208 16m 2224 S 0.0 0.2 0:02.22 mrtg
7056 root 34 19 251m 15m 2116 S 0.0 0.2 0:00.41 yum-updatesd
4856 sipxchan 15 0 228m 15m 3240 S 0.0 0.2 0:42.58 sipxrls
13730 postgres 15 0 122m 15m 10m S 0.0 0.2 2:57.91 postmaster
3730 sipxchan 18 0 262m 14m 6188 S 0.0 0.2 0:00.61 sipxsupervisor
13729 postgres 15 0 123m 14m 10m S 0.0 0.2 1:54.23 postmaster
13728 postgres 15 0 122m 13m 9900 S 0.0 0.2 0:23.49 postmaster
6652 root 18 0 48980 13m 1436 S 0.0 0.2 0:00.01 miniserv.pl
<http://miniserv.pl>
4721 sipxchan 18 0 247m 13m 4368 S 0.0 0.2 1:32.57 sipregistrar
7137 postgres 15 0 120m 12m 9m S 0.0 0.2 1:40.42 postmaster
2577 root 15 0 170m 12m 4288 S 0.0 0.2 0:36.86 snmpd
4416 sipxchan 18 0 254m 11m 3932 S 0.0 0.1 1:05.26 sipxpresence
5079 postgres 16 0 119m 11m 9m S 0.0 0.1 6:19.56 postmaster
3915 sipxchan 18 0 275m 11m 4036 S 0.0 0.1 0:18.81 sipxacd
5482 postgres 15 0 118m 11m 9.9m S 0.0 0.1 0:00.71 postmaster
5379 postgres 15 0 118m 11m 9.9m S 0.0 0.1 0:00.28 postmaster
7138 postgres 15 0 120m 10m 7736 S 0.0 0.1 0:01.25 postmaster
4120 sipxchan 18 0 210m 8552 3996 S 0.0 0.1 1:48.15 sipstatus
2705 postgres 15 0 118m 6932 6412 S 0.0 0.1 0:00.04 postmaster
7134 postgres 15 0 119m 6736 4580 S 0.0 0.1 0:00.23 postmaster
2969 root 18 0 115m 5952 2876 S 0.0 0.1 0:00.06 hpsmhd
6638 root 19 0 24936 5788 4752 S 0.0 0.1 0:00.04 vcagentd
4600 sipxchan 18 0 122m 5116 2980 S 0.0 0.1 0:00.50 sipxpark
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======================
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