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HELP : Rampaging Java Processes
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HELP : Rampaging Java Processes


  • Subject: HELP : Rampaging Java Processes
  • From: Owen McKerrow <email@hidden>
  • Date: Thu, 23 Oct 2003 11:46:23 +1000

Hi All,

We wrote about this a month or so ago and thought we had fixed the
problem, but low and behold today its reared its ugly head again. Heres
the same message we sent last time. Can anyone help us ? Please.

Owen

Using WO 5.2 on Mac Server 10.2 and Java 1.4.1

We have deployed 12 different application each running one instance.
which normally works fine until last week when we started getting error
messages from monitor when adding new applications/ updating exiting
apps. Errors say:   "could not write to
/Library/WebObjects/Configuration/SiteConfig.xml"

even though the permissions are right ( i think)
and the other error message we get is "Java IO exception too many open
files"

And does not allow us to add any extra applications.

So i tried restarting the server and now none of the deployed sites
work, and the machine is running extremely slow.
I ran ps -xmauww and the results are below. Its seems its spawning huge
200Mb java processes and they number of them keep on growing? could
this be a memory leak in one of our projects?

We fixed it afew days ago by uninstalling and reinstalling webObjects.
We had to run kill `ps -aux|grep 'java'|awk '{print $2}'` first from
the command line to  be able to use the GUI since the server was so
slow.. and things seem to be working fine, better than ever. But today
the problems have started again.

Any help would be greatly appreciated.
Dave


root# ps -xmauww
USER      PID %CPU %MEM      VSZ    RSS  TT  STAT STARTED      TIME
COMMAND
root     3601   3.0  0.7   224684   5300  ??  RN    2:25PM   0:03.19
java
root     2927   3.0  0.8   207636   6480  ??  RN    2:21PM   0:05.12
java
root     1655   3.0  1.2   231864   9288  ??  RN    2:19PM   0:07.98
java
root     3213   3.0  0.9   214628   6872  ??  RN    2:24PM   0:03.19
java
root     2851   3.0  0.9   211832   7452  ??  RN    2:21PM   0:04.34
java
root     2807   3.0  0.8   211988   6220  ??  RN    2:21PM   0:05.59
java
root     1233   2.3  1.3   232328  10048  ??  RN    2:18PM   0:11.61
java
root     3772   2.3  0.7   208240   5876  ??  RN    2:26PM   0:01.71
java
root     2775   1.8  0.9   300124   6960  ??  RN    2:21PM   0:20.57
java
root     3625   1.8  0.6   208200   4524  ??  RN    2:25PM   0:22.98
java
root      789   1.8  1.4   219280  11060  ??  RN    2:17PM   0:11.35
java
root     2063   1.8  1.1   231156   8804  ??  RN    2:20PM   0:06.48
java
root     1934   1.4  1.3   215164   9856  ??  RN    2:20PM   0:07.11
java
root     3203   1.2  0.7   300172   5776  ??  RN    2:24PM   0:03.18
java
root     3149   1.2  0.8   211800   6440  ??  RN    2:23PM   0:03.18
java
root     3109   1.1  0.8   300236   6368  ??  RN    2:23PM   0:03.14
java
root     2378   1.1  1.2   212668   9132  ??  RN    2:20PM   0:05.86
java
root     3200   1.1  0.8   207676   5956  ??  RN    2:24PM   0:02.71
java
root     1234   1.1  1.3   216012  10148  ??  RN    2:18PM   0:09.98
java
root     1330   1.1  1.3   216304  10280  ??  RN    2:18PM   0:10.47
java
root     2850   1.1  0.9   228156   6764  ??  RN    2:21PM   0:04.22
java
root     1566   1.1  1.2   303840   9492  ??  RN    2:19PM   0:08.89
java
root      304   0.8  1.4   243516  11384  ??  RN    2:15PM   0:14.15
java
root      291   0.7  0.1     1836    472  ??  Ss    2:15PM   0:03.09
netinfod local (master)
root     1530   0.7  1.1   215808   8948  ??  RN    2:19PM   0:08.49
java
root     3103   0.7  0.8   214396   6648  ??  RN    2:23PM   0:03.13
java
root     3652   0.7  0.7   295772   5364  ??  RN    2:25PM   0:01.54
java
root     2259   0.7  1.1   208316   8684  ??  RN    2:20PM   0:06.26
java
root      762   0.7  1.4   307568  10948  ??  RN    2:17PM   0:11.15
java
root     4324   0.6  0.5   289544   3604  ??  RN    2:28PM   0:00.34
java
root      760   0.4  1.6   219500  12212  ??  RN    2:17PM   0:11.30
java

"As of tomorrow, employees will only be able to access the building
using individual security cards. Pictures will be taken next Wednesday
employees will receive their cards in two weeks."
- "Dilbert Quotes" Winner, Fred Dales, Microsoft Corp
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