Hi,

I've installed zimbra 5.0.11 on a ubuntu 8.04 box with 1GB RAM. I've 20 useres frequently sending emails and another 20 users that only receiving and ocasionally sending emails.

After one hour more or less the cpu load of the server is increased and the only way to make the server to work again is reseting it.

I've added the following lines to /etc/sysctl.conf to try to minimize the cpu load but seems like is not working:

Code:
# For Zimbra
vm.swappiness=0
net.ipv4.tcp_fin_timeout=15
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle=1

I've disabled too the hyperthreading feature of the processor on the bios settings.

The only one error that seems out of order is the following regarding deprecated sysctl system call:

Code:
[   28.988044] EXT3 FS on sda3, internal journal
[   28.988048] EXT3-fs: mounted filesystem with ordered data mode.
[   29.751416] ip_tables: (C) 2000-2006 Netfilter Core Team
[   39.498628] eth0: no IPv6 routers present
[  118.774001] warning: process `nginx' used the deprecated sysctl system call with 1.33.
Please check my zimbra box features:
Code:
cat /proc/cpuinfo 
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 2
model name	: Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping	: 9
cpu MHz		: 2992.707
cache size	: 512 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe up pebs bts sync_rdtsc cid xtpr
bogomips	: 5988.76
clflush size	: 64
The meminfo:
Code:
cat /proc/meminfo 
MemTotal:      1034412 kB
MemFree:         53904 kB
Buffers:         20364 kB
Cached:         187616 kB
SwapCached:          0 kB
Active:         848060 kB
Inactive:       101700 kB
HighTotal:      130180 kB
HighFree:         7924 kB
LowTotal:       904232 kB
LowFree:         45980 kB
SwapTotal:     1502036 kB
SwapFree:      1502036 kB
Dirty:            2212 kB
Writeback:           0 kB
AnonPages:      741816 kB
Mapped:          69804 kB
Slab:            16408 kB
SReclaimable:     7164 kB
SUnreclaim:       9244 kB
PageTables:       4748 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   2019240 kB
Committed_AS:  1887540 kB
VmallocTotal:   118776 kB
VmallocUsed:      3812 kB
VmallocChunk:   114484 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
HugePages_Surp:      0
Hugepagesize:     2048 kB
The hardisk (IDE) info:
Code:
fdisk -l

Disk /dev/sda: 80.0 GB, 80060424192 bytes
255 heads, 63 sectors/track, 9733 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xd105d105

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        2432    19535008+  83  Linux
/dev/sda2            9547        9733     1502077+   5  Extended
/dev/sda3            2433        9546    57143205   83  Linux
/dev/sda5            9547        9733     1502046   82  Linux swap / Solaris

Partition table entries are not in disk order

df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              19G  2,7G   15G  16% /
varrun                506M   52K  506M   1% /var/run
varlock               506M     0  506M   0% /var/lock
udev                  506M   48K  506M   1% /dev
devshm                506M     0  506M   0% /dev/shm
/dev/sda3              55G  2,4G   49G   5% /opt
What can be bad with this server?