Hi TJ,
When you hit the issue, could you run these two commands on the riak console
(if riak is running as a daemon 'riak attach' to get to the console then ^D
to get out)
length(erlang:ports()).
length(erlang:processes()).
If ports is close to 4096 or ports to 32767 you'll need to up the limit in
vm.args.
Cheers,
Jon Meredith
Basho Technologies.
On Tue, Sep 20, 2011 at 2:13 PM, TJ Ninneman <t...@twopeasinabucket.com>wrote:
> On our RHEL servers I've been noticing a lot of:
>
> Failed to merge ...
> {{badmatch,{error,system_limit}},[{bitcask,scan_key_files,3},{bitcask,'merge1',3},{bitcask_merge_worker,do_merge,1}]}
>
> This is a RHEL 6 / Riak 1.0 test cluster which has Riak running as root. I
> have not noticed this at all on our production 0.14.2 FreeBSD cluster.
>
> My ulimit -a output is as follows:
>
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) unlimited
> pending signals (-i) 127400
> max locked memory (kbytes, -l) 64
> max memory size (kbytes, -m) unlimited
> open files (-n) 40560
> pipe size (512 bytes, -p) 8
> POSIX message queues (bytes, -q) 819200
> real-time priority (-r) 0
> stack size (kbytes, -s) 10240
> cpu time (seconds, -t) unlimited
> max user processes (-u) 1024
> virtual memory (kbytes, -v) unlimited
> file locks (-x) unlimited
>
> An lsof -p shows open files of around 3 - 5k during the merge and about
> 1,300 post fail. Anybody have an idea what system limit I may be hitting?
>
> Thanks!
>
> TJ
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