On Wed, Dec 18, 2013 at 03:55:22PM +0100, Albert Shih wrote: > > > > We at the Universität Konstanz in Germany have more than 16000 users. > > > Can you describe your infrastructure ? How many server ? (hardware & > Virtual), what size (Ram, CPU) ?
We have around 30.000 unique users daily.
The sogo-servers are 5 virtual machines with 4 cpus and 8 GB
memory each. Top output from one of these right now:
top - 16:17:22 up 15 days, 15:54, 1 user, load average: 0.16, 0.09, 0.03
Tasks: 277 total, 2 running, 275 sleeping, 0 stopped, 0 zombie
Cpu0 : 2.0%us, 0.7%sy, 0.0%ni, 97.0%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 1.7%us, 0.3%sy, 0.0%ni, 98.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 3.7%us, 1.0%sy, 0.0%ni, 94.6%id, 0.0%wa, 0.0%hi, 0.7%si, 0.0%st
Cpu3 : 0.3%us, 0.7%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 8059428k total, 5849244k used, 2210184k free, 540264k buffers
Swap: 2097144k total, 26476k used, 2070668k free, 2298216k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6580 root 20 0 273m 115m 3844 S 0.0 1.5 36:49.53 splunkd
7997 sogo 20 0 381m 62m 8796 S 0.0 0.8 0:44.65 sogod
6438 sogo 20 0 380m 60m 8108 S 0.0 0.8 0:55.09 sogod
2730 sogo 20 0 379m 59m 8708 S 0.0 0.8 0:42.99 sogod
6035 sogo 20 0 378m 59m 8568 S 0.0 0.8 0:44.89 sogod
6459 sogo 20 0 379m 59m 8164 S 0.0 0.8 0:51.07 sogod
17130 sogo 20 0 378m 59m 8672 S 0.0 0.8 0:46.98 sogod
13702 sogo 20 0 379m 58m 8600 S 0.0 0.7 0:43.08 sogod
6428 sogo 20 0 380m 58m 8356 S 0.0 0.7 0:51.75 sogod
25734 sogo 20 0 376m 57m 8896 S 0.0 0.7 0:42.47 sogod
8076 sogo 20 0 375m 56m 8616 S 0.0 0.7 0:38.01 sogod
2725 sogo 20 0 375m 56m 8336 S 2.7 0.7 0:35.36 sogod
2690 sogo 20 0 372m 55m 8388 S 0.0 0.7 0:38.71 sogod
14427 sogo 20 0 374m 55m 8620 S 0.0 0.7 0:36.37 sogod
8090 sogo 20 0 374m 55m 8552 S 0.0 0.7 0:36.86 sogod
23322 sogo 20 0 375m 54m 8244 S 0.0 0.7 0:28.58 sogod
13543 sogo 20 0 373m 54m 8448 S 0.0 0.7 0:25.63 sogod
9580 sogo 20 0 372m 54m 8584 S 0.0 0.7 0:34.44 sogod
28024 sogo 20 0 372m 53m 8780 S 0.0 0.7 0:33.48 sogod
7722 sogo 20 0 374m 53m 8640 S 0.0 0.7 0:35.03 sogod
8991 sogo 20 0 373m 52m 8272 S 0.0 0.7 0:23.42 sogod
8411 sogo 20 0 369m 50m 8496 S 0.0 0.6 0:34.35 sogod
6863 sogo 20 0 369m 50m 8016 S 0.0 0.6 0:32.21 sogod
5485 sogo 20 0 369m 50m 8668 S 0.0 0.6 0:34.20 sogod
<snip>
We kill sogod's that has been running for more than 15 cpuminutes, as
these are normally stuck in something. I believe your sogod's must
be stuck..
The sogo-servers are dedicated for sogo-webui. In addition we have
postgres-servers, SMTP-servers, imap-servers and loadbalancers in front
of everything.
-jf
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