Re: [BackupPC-users] Hardware considerations for building dedicated back

I definitely don't have updated installed on the box. I'm monitoring it the moment and it seems BackupPC_nightly is running while performing a backup of 2 servers, it must run run backuppc_nightly for the first few hours every night.

Output from top, CPU usage is in the 9th column.

12269 backuppc 20   0 117m 114m 2364 D   55 2.9   2:47.40 BackupPC_dump
12270 backuppc 20   0 226m 216m 2356 D   35 5.5   1:22.66 BackupPC_dump
13538 backuppc 20   0 185m 176m 1324 D   29 4.5   0:25.90 BackupPC_dump
12264 backuppc 20   0 11116 8076 2060 D   10 0.2   0:22.06 BackupPC_nightl
12262 backuppc 20   0 11136 8092 2060 D    5 0.2   0:25.46 BackupPC_nightl
12267 backuppc 20   0 11160 8112 2060 D    4 0.2   0:23.40 BackupPC_nightl
13109 backuppc 20   0 106m 101m 1324 S    3 2.6   0:52.04 BackupPC_dump
12268 backuppc 20   0 11024 8088 2060 D    2 0.2   0:23.84 BackupPC_nightl
12261 backuppc 20   0 11148 8120 2072 D    1 0.2   0:24.46 BackupPC_nightl
12265 backuppc 20   0 11136 8088 2060 D    1 0.2   0:23.90 BackupPC_nightl
   10 root      15 -5     0    0    0 S    1 0.0 38:30.83 ksoftirqd/2
182 root      15 -5     0    0    0 S    1 0.0 16:12.28 kblockd/0
351 root      15 -5     0    0    0 S    1 0.0   1296:21 kswapd0
12263 backuppc 20   0 11132 8112 2060 D    1 0.2   0:21.20 BackupPC_nightl
12266 backuppc 20   0 11024 8084 2060 D    1 0.2   0:24.10 BackupPC_nightl

On Tue, Jul 7, 2009 at 6:20 PM, Leen Besselink <leen AT consolejunky DOT net> wrote:

Stephen Vaughan wrote:
> The box isn't used for anything else..I can keep an eye on it tonight
> and see whats causing the load in those first few hours..
>
> On Tue, Jul 7, 2009 at 1:57 PM, Les Mikesell <lesmikesell AT gmail DOT com

> <mailto:lesmikesell AT gmail DOT com>> wrote:
>
> Stephen Vaughan wrote:
> > I'm only running 2 concurrent backups. The disk is/was mounted with
> > noatime,data="" I've changed this to
> noatime,nodiratime,data=""> > >
> > I've also just enabled the checksum-seed option in rsyncargs. I have
> > munin running on the box, it looks as though there is a bit of
> iowait on
> > the cpu, iostat doesn't look too bad to me, but I might be reading it
> > wrong..
> >
> > I've attached some graphs which might shed some light..
>
> The only thing that seems slightly strange in the graphs is the load
> average
> going to 12 as the backups start and staying there a couple of
> hours. Normally
> that's the average number of 'other' processes that are waiting for
> CPU but
> otherwise runnable (i.e. not themselves blocked on i/o). Do you
> have other
> things running that should be active at this time? Idle daemons
> wouldn't count
> because they should be blocked waiting for input.

The load and waiting on I/O is definitly suspicious.

Maybe something like a cronjob running updatedb for locate ?

/etc/updatedb.conf holds the paths that should be excluded if you
don't want to turn it off completely.

As they are both doing a lot of disk activity it will slow down rsync.

I suggest having a good look at syslog looking for CRON and/or check:
/etc/crontab
/etc/cron.d/
/etc/cron.hourly/
/etc/cron.daily/
/etc/cron.weekly/
/etc/cron.monthly/
/var/spool/cron/

------------------------------------------------------------------------------
Enter the BlackBerry Developer Challenge
This is your chance to win up to $100,000 in prizes! For a limited time,
vendors submitting new applications to BlackBerry App World(TM) will have
the opportunity to enter the BlackBerry Developer Challenge. See full prize
details at: http://p.sf.net/sfu/blackberry
_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki: http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/

--
Best Regards,
Stephen

------------------------------------------------------------------------------
Enter the BlackBerry Developer Challenge  
This is your chance to win up to $100,000 in prizes! For a limited time, 
vendors submitting new applications to BlackBerry App World(TM) will have 
the opportunity to enter the BlackBerry Developer Challenge. See full prize 
details at: http://p.sf.net/sfu/blackberry

_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/

Re: [BackupPC-users] Hardware considerations for building dedicated backuppc server