Hi Guys,
I have 5 nodes riak cluster in use. Each machine is having 16GB ram. All
those 5 machines are
dedicated for riak only. No other application is there to eat resources.
I use to do a lot of work with
map reduce queries. Having a may map reduce queries with both map and
reduce phases.
I have many cases with the the following error and log messages,
"error":"[preflist_exhausted]"
RiakError: 'could not get a response'
All VMs are busy
I know above errors can be avoided with fine tuned riak configuration
options. I am looking for recommended values
Here are few riak configuration options currently I have on each node,
{ kernel, [
{inet_dist_listen_min, 6000},
{inet_dist_listen_max, 7999}
]},
{map_js_vm_count, 48 },
{reduce_js_vm_count, 26 },
{hook_js_vm_count, 12 },
{js_max_vm_mem, 32},
{js_thread_stack, 16}
--
Thanks & Regards,
Naveen Tamanam
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