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Old 08-01-2012, 05:53 AM   #1
adiputra
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Registered: Jul 2012
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rhel 5.8 beta comsume almost all memory


hi, i have an issue with rhel memory management. i got pentaho data integration server installed and run the application. the application is set with maximum 6 GB of memory. after i ran the application, the memory usage increased to 16 GB, which is the total physical memory, leaving only 100 MB of free memory. i have tried to drop the memory cache, but only got some 100 MB added to free memory

when i used top:
Code:
top - 16:49:11 up 2 days,  1:45,  3 users,  load average: 0.12, 0.17, 0.22
Tasks: 183 total,   1 running, 182 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  16435872k total, 16345968k used,    89904k free,    12872k buffers
Swap:  4194296k total,  1405236k used,  2789060k free,    89208k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 6811 pentaho   18   0 6993m 5.2g 9828 S  0.0 33.0  93:26.13 java
 3929 root      11 -10 38936  32m 1740 S  0.0  0.2   0:00.11 iscsiuio
 5721 root      15   0 90160 3652 2920 S  0.0  0.0   0:00.04 sshd
27624 root      16   0 90156 3292 2560 S  0.0  0.0   0:00.04 sshd
 6897 root      16   0 90156 3288 2560 S  0.0  0.0   0:00.02 sshd
 5184 root      34  19  250m 3100 1480 S  0.0  0.0   0:02.34 yum-updatesd
 3937 root       5 -10  5096 3048 1900 S  0.0  0.0   0:00.77 iscsid
27737 pentaho   15   0 90156 1860 1096 S  0.0  0.0   0:01.13 sshd
27738 pentaho   16   0 66208 1760 1216 S  0.0  0.0   0:00.50 bash
 6899 pentaho   15   0 90156 1744  988 S  0.0  0.0   0:00.04 sshd
 3578 root      15   0 46644 1624 1332 S  0.0  0.0   0:24.15 vmtoolsd
 6900 pentaho   15   0 66088 1624 1196 S  0.0  0.0   0:00.02 bash
 5776 root      15   0 66088 1528 1180 S  0.0  0.0   0:00.28 bash
 4762 haldaemo  16   0 31436 1504  984 S  0.0  0.0   0:05.57 hald
12615 pentaho   15   0 12760 1156  816 R  0.0  0.0   0:00.87 top
 4891 root      18   0  151m  904  552 S  0.0  0.0   0:00.70 hpssd.py
 5127 avahi     15   0 23292  896  804 S  0.0  0.0   0:00.24 avahi-daemon
and when i use free:
Code:
             total       used       free     shared    buffers     cached
Mem:      16435872   16345424      90448          0      13124      89224
-/+ buffers/cache:   16243076     192796
Swap:      4194296    1405236    2789060
as you can see, the cached data is only 190MB and the buffer size is 16GB.

can anyone tell me what's the problem?

thanks you.

Last edited by adiputra; 08-01-2012 at 06:10 AM.
 
Old 08-01-2012, 09:53 PM   #2
chrism01
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Registered: Aug 2004
Location: Sydney
Distribution: Centos 6.5, Centos 5.10
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Start here http://www.linuxatemyram.com/.
Basically, Linux is fine, but looking at your swap figures, I'd say you may have a memory leak in the app code.
 
Old 08-02-2012, 01:21 AM   #3
adiputra
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Registered: Jul 2012
Posts: 2

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thanks for the reply
 
  


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