Re: Heavy load

[Eric Wong <e@80x24.org>]

Arkadi Colson <arkadi@smartbit.be> wrote:
> > Any idea? If you need more info, please just ask!
> We are having about 192 devices spread over about 23 cmogstored hosts. 
> Each device is one disk with one partition...
> > How many "/devXYZ" devices do you have?  Are they all
> > on different partitions?

OK, thanks.  I've only got a single host nowadays with 3
rotational HDD.  Most I ever had was 20 rotational HDD on a
host but that place is out-of-business.

Since your build did not include -ggdb3 with debug_info by default;
I wonder if there's something broken in your build system or
build scripts...  Which compiler are you using?

Can you share the output of "ldd /path/to/cmogstored" ?

Since this is Linux, you're not using libkqueue, are you?

Also, which Linux kernel is it?

Are you using "server aio_threads =" via mgmt interface?

Are you using the undocumented -W/--worker-processes or
-M (multi-config) option(s?)

Is your traffic read-heavy or write-heavy?
I just tested 10s parallel PUTs and 100s of parallel GETs
without any problems.