[Durham] Swap fills up then out of memory errors

[Richard Mortimer]

On 18/02/2012 18:00, Dougie Nisbet wrote:
> On 17/02/2012 23:17, Richard Mortimer wrote:
> I've been experimenting trying to get top to work in batch (-b) mode
> with the view to running it with a long interval and trying to determine
> the rate of increase of swap usage. Not worked it out though. 'htop' is
> interesting but confusing. Running it in tree view shows about 15-20
> processes called x-www-browser, but none of the pids match real
> processes so I'm not sure what's going on there.

I suspect it is showing you the individual threads. Linux differs from 
many Unix implementations by assigning each thread to a PID. ps and 
similar normally only show you the main (lead) pid thread but you can 
add the -L option to ps to show threads too. without -L I only see pid 
5132 but with -L I get the threads too

richm at royalcounty:~$ ps -efL | grep bacula-dir
richm     4946 25312  4946  0    1 22:48 pts/0    00:00:00 grep bacula-dir
bacula    5132     1  5132  0    5 Feb01 ?        00:00:02 
/usr/sbin/bacula-dir -c /etc/bacula/bacula-dir.conf -u bacula -g bacula
bacula    5132     1  5242  0    5 Feb01 ?        00:00:00 
/usr/sbin/bacula-dir -c /etc/bacula/bacula-dir.conf -u bacula -g bacula
bacula    5132     1  5243  0    5 Feb01 ?        00:00:02 
/usr/sbin/bacula-dir -c /etc/bacula/bacula-dir.conf -u bacula -g bacula
bacula    5132     1  8947  0    5 21:05 ?        00:00:00 
/usr/sbin/bacula-dir -c /etc/bacula/bacula-dir.conf -u bacula -g bacula
bacula    5132     1  9398  1    5 21:05 ?        00:01:14 
/usr/sbin/bacula-dir -c /etc/bacula/bacula-dir.conf -u bacula -g bacula

BTW The 'H' key on htop seems to toggle showing individual threads.

Richard