Server load
Pirate Praveen
Public
Seen by 20
I think we are hitting the load limits on our server.
diaspora@poddery:~$ free -m
total used free shared buffers cached
Mem: 3965 3816 149 0 4 575
-/+ buffers/cache: 3235 730
Swap: 3355 1256 2099
Stream is loading slow and sometimes nginx gives a page not found message. How do we handle this?
Pirate Praveen Sat 29 Mar 2014 10:25AM
@manukrishnantv that would be a good option. Important point is to sustain quality of service. We can try a reboot and see if it improves the performance.
Pirate Praveen Sun 30 Mar 2014 4:46PM
@manukrishnantv @nandajavarma I think we should move yatra.diasporafoundation.org also to another host as it does not need a vps. Nandaja, can you try to move it to autistici.org or riseup.net hosting?
Manu Krishnan T V Sun 30 Mar 2014 7:08PM
Moving out wordpress won't be a hard task. @nandajavarma @balasankarchelamat Hope you can do that.
Nandaja Varma Mon 31 Mar 2014 2:14AM
@manukrishnantv @praveenarimbrathod Sure! I will try to move it tonight(will have a better Internet connection, by then).
Pirate Praveen Mon 31 Mar 2014 6:00AM
@manukrishnantv I still feel we should stop new sign ups until we can guarantee a good performance. Otherwise new people joining will have a bad impression of diaspora.
Pirate Praveen Mon 31 Mar 2014 9:08AM
I saw two extra sidekiq processes on the server. I killed them and restarted diaspora. Sign ups are closed now. Once we see good performance for next two days, we can open it again.
Pirate Praveen Mon 31 Mar 2014 9:34AM
seems stable now
$ free -m
total used free shared buffers cached
Mem: 3965 2076 1889 0 42 929
-/+ buffers/cache: 1105 2860
Swap: 3355 140 3215
Pirate Praveen Mon 31 Mar 2014 10:19AM
I have re-enabled sign ups. Load and memory usage is normal so I was tempted to re-open registrations.
Manu Krishnan T V Sat 5 Apr 2014 4:02AM
The stream now loads faster, but the memory usage has gone to the old state.
poddery@poddery:~$ free -mMem: 3965 3815 150 0 178 1899
total used free shared buffers cached
-/+ buffers/cache: 1736 2228
`Swap: 3355 122 3233
Swap usage is not high though.
Manu Krishnan T V · Fri 28 Mar 2014 4:01PM
Just did a dd test, to look at whether disk IO is causing issues and it seems fine. 150MB/s is good enough I believe. The result is as below:
poddery@poddery:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 7.13325 s, 151 MB/s