We have 40 Redhat machines that run analysis jobs 24/7. We seem to have a
problem with the memory usage once a job has finished and we are having to
reboot the machines to clear the memory down every three weeks or so. The
analysis jobs are stopped cleanly and are not leaving any rough processes
at all so i do not understand why the machines are not freeing the memory
up. The knock on affect of this is that jobs that are then run on these
machines run dramatically slower as there is not enough memory to use. I
have put the text from a top command below to help. Could someone please
advise on what i can do to fix this issue.
15:20:33 up 14 days, 2:16, 1 user, load average: 0.00, 0.00, 0.00
49 processes: 48 sleeping, 1 running, 0 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 0.8% 0.0% 0.2% 0.0% 0.6% 0.0% 198.4%
cpu00 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 100.0%
cpu01 0.8% 0.0% 0.2% 0.0% 0.6% 0.0% 98.4%
Mem: 3599032k av, 2926964k used, 672068k free, 0k shrd, 82052k
buff
469844k actv, 1731916k in_d, 54940k in_c
Swap: 2044072k av, 0k used, 2044072k free 2614264k
cached
Regards
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