Hey, some people are into pain @_@
But seriously, ZFS is pretty cool. (as long as it doesn't eat your data)
-m
On Wed, Feb 13, 2013 at 3:29 PM, Adam Armstrong adama@memetic.org wrote:
ZFS is quite possibly the least optimal filesystem for running RRDs from. You want a simple filesystem without much overhead on operations, like EXT with journalling and atime turned off.
Also, it's possible that RRD is poorly optimised on solaris and uses slow system calls?
You say 41 devices in an hour, but your paste suggests 468 devices in 73 minutes. What is your I/O subsystem? disk? ssd? how many? A spindled disk will not behave well with more than 4-8 concurrent processes, an SSD might behave better.
You should also look at the new poller wrapper script, which might help you squeeze a bit more out of it, once you've sized it correctly
One must ask why, if you have a dedicated machine, are you not just running it on Ubuntu, like we recommend?
adam.
On Wed, 13 Feb 2013 18:37:21 -0300, Ciro Iriarte cyruspy@gmail.com wrote:
Hi!, I've been running Observium on SLES11 for almost a year. This was
on a
8 vCPU + 2GB RAM VMware guest with a 30GB RRD footprint.
After adding about 320 new hosts (all of them, network gear) the RRD database went to 130GB and the little machine got peaks of 3k IOPS. The
I/O
wait was rather hi and the machine would suddently stop responding (Hypervisor stats showed 0% CPU usage).
So, I've migrated the installation to a physical machine running Solaris
11
(I know, it's not supported) and without any tunning (mysql/zfs are candidates) I'm seeing polling of 41 devices in about an hour. Is this usual/expected?
--
./poller.php 0/24 February 13, 2013, 18:27 - 27 devices polled in 4048. secs ./poller.php 7/24 February 13, 2013, 18:27 - 27 devices polled in 4075. secs ./poller.php 0/24 February 13, 2013, 18:28 - 27 devices polled in 3803. secs ./poller.php 22/24 February 13, 2013, 18:28 - 27 devices polled in 4404. secs ./poller.php 3/24 February 13, 2013, 18:28 - 28 devices polled in 4417. secs --
IOPS climbed to 5k, comments?
Regards,
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