Amanda-Users

High CPU running backup

2004-03-19 13:02:21
Subject: High CPU running backup
From: Simon Lorenz <simon.lorenz AT fresca.co DOT uk>
To: <amanda-users AT amanda DOT org>
Date: Fri, 19 Mar 2004 18:00:01 +0000
I have a Solaris 8 system running Amanda that ginds to a hault when the
backups are running. Amanda and the sub processes take all avliable CPU.
This is dispite having compression set to none (using tape device). It is
primarily the snedbackup, dumper and ufsrestore processes that are causing
trhe issue.

Any suggestions for stopping this would be much appreciated.

load averages:  2.21,  2.21,  2.02
17:48:54
142 processes: 131 sleeping, 5 running, 1 zombie, 4 stopped, 1 on cpu
CPU states:  0.0% idle, 13.7% user, 76.9% kernel,  9.3% iowait,  0.0% swap
Memory: 768M real, 13M free, 729M swap in use, 3911M swap free

   PID USERNAME THR PRI NICE  SIZE   RES STATE    TIME    CPU COMMAND
 10563 amanda     1  22    0 2232K  936K sleep    5:32 35.03% sendbackup
 10476 amanda     1   0   19 2640K 1920K run      2:26 15.04% dumper
 10568 amanda     1  32    0   11M 9928K sleep    1:49 12.55% ufsrestore
 10572 amanda     1  48    0   11M 2864K run      0:47  5.20% ufsdump
 10571 amanda     1  53    0   11M 2864K run      0:48  5.16% ufsdump
 10573 amanda     1  48    0   11M 2872K run      0:47  4.64% ufsdump
 10574 amanda     1  36    0   11M 3072K sleep    0:32  3.53% ufsdump
 10570 amanda     1  48    0   11M 7520K sleep    0:20  1.89% ufsdump
 10646 root       1  58    0 2104K 1208K cpu      0:01  0.35% top


Simon


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