[hobbit] Memory check

[Jeff Newman]

I have seen in the past from various companies products graphs which
plot memory usage by process, so you can see which process is using
the most memory. In addition, there have been CPU usage per process
graphs as well.
Seeing the below made me think about the memory/per process.

I tried the ps vax command on both an AIX and Redhat box and both worked.
Would it be possible to implement this sort of a graph in hobbit?

-Jeff


On 5/1/06, Michael Lowery <mlowery at alliedtechgroup.com> wrote:
> Ok, I don't have a clear understanding of the memory check.  I do
> understand what has been discussed, but I have a Redhat 9 where the
> "actual" memory utilized is 96%.  However, when I run: ps vax --sort
> -rss, I get the following.  It looks like my actual memory usage
> shouldn't be at 96%, is this correct?
>
>  PID TTY      STAT   TIME  MAJFL   TRS   DRS  RSS %MEM COMMAND
>  2916 ?        SL     0:00    470   298  2093 2388  0.9 [ntpd]
>  2948 pts/1    R      0:00    187    66  2561  684  0.2 ps vax --sort
> -rss
>  2690 ?        S      0:00  11252   265  6594  612  0.2 /usr/sbin/sshd
>  2692 pts/1    S      0:00   2666   588  3775  604  0.2 -bash
>  891 ?        S      3:15  30426    24  1415  100  0.0 syslogd -m 0
> 31227 ?        S      0:00  50692    33  1374   60  0.0
> /home/hobbit/client/bin/hobbitlaunch
> --config=/home/hobbit/client/etc/client
>    1 ?        S      0:04  28806    23  1352   36  0.0 init
>  2878 ?        S      0:00   7714   131  4480   36  0.0 [nqmgr]
>  2885 ?        S      0:00   4231   190  4481   16  0.0 [smtpd]
>  2902 ?        S      0:00   2566   130  4485   16  0.0 [cleanup]
>  895 ?        S      0:00    124    18  1349    4  0.0 klogd -x
>  1029 ?        S      0:01    520   265  3238    4  0.0 /usr/sbin/sshd
>  1043 ?        S      0:00     97   129  1890    4  0.0 xinetd
> -stayalive -reuse -pidfile /var/run/xinetd.pid
>  1142 ?        S      0:00    340    56  1347    4  0.0 gpm -t ps/2 -m
> /dev/psaux
>  1151 ?        S      0:00  42450    19  1404    4  0.0 crond
>  1185 tty1     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty1
>  1186 tty2     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty2
>  1187 tty3     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty3
>  1188 tty4     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty4
>  1189 tty5     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty5
>  1190 tty6     S      0:00     98     6  1345    4  0.0 /sbin/mingetty
> tty6
> 31309 ?        S      0:10 185817    16  9287    4  0.0 /usr/sbin/snmpd
> -s -l /dev/null -P /var/run/snmpd -a
>  2941 ?        S      0:00    473   588  1447    4  0.0 sh -c vmstat 300
> 2 1>/home/hobbit/client/tmp/hobbit_vmstat.2930 2>&1; mv /ho
>  2943 ?        S      0:00    118     7  1408    4  0.0 vmstat 300 2
>    2 ?        SW     0:00      0     0     0    0  0.0 [keventd]
>
> Thanks,
> Michael
>
> -----Original Message-----
> From: Henrik Stoerner [mailto:henrik at hswn.dk]
> Sent: Wednesday, February 08, 2006 9:47 AM
> To: hobbit at hswn.dk
> Subject: Re: [hobbit] Memory check
>
> On Wed, Feb 08, 2006 at 09:26:31AM -0500, David Gilmore wrote:
> > Ok I understand the concept.  However, I don't want to continue to
> receive
> > Alerts because Linux is doing exactly what it is designed to do.  Does
> > anyone have a script that can clear the buffers and stop hobbit from
> paging
> > me?  Can I modify the script to only alert when REAL memory is at 100%
> or
> > higher?  Or do I have to reboot my server ever morning to resolve this
> > alert?  I currently have the alerts disabled, but I am concerned that
> I
> > could miss a critical error
>
> Assuming that you're using the Hobbit client on the Linux box, you
> can just configure the client to only go red if the actual memory
> usage goes above a certain threshold. In your hobbit-clients.cfg,
> you would have
>
> HOST=linux.foo.com
>    MEMPHYS 100 101
>    MEMACT   80  95
>    MEMSWAP  40  70
>
> Then it will stay green as long as the "actual" memory usage is
> below 80%, go yellow when it's between 80-95%, and go red when
> it is at 95% or higher.
>
>
> Regards,
> Henrik
>
>
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