counting the keys

Scott Lystig Fritchie fritchie at snookles.com
Tue Nov 22 19:14:57 EST 2011


Sorry about the late reply.

>>>>> "tb" == thomas bikeev <thomas.bikeev at mac.com> writes:

tb> Oops, actually I do get the following in the monitor: Does it mean
tb> that loose consistency because of low mem / resources?

tb> 14:21:00.395 [info] monitor long_gc <0.13156.5> [{initial_call,{riak_core_vnode_worker_pool,init,1}},{almost_current_function,{gen_fsm,loop,7}}] [{timeout,57},{old_heap_block_size,0},{heap_block_size,610},{mbuf_size, 0},{stack_size,10},{old_heap_size,0},{heap_size,184}]

No, those messages simply mean that the process had a single garbage
collection event that took 57 milliseconds.  If you're doing a lot of
work on a lot of data, then the default settings in the etc/app.config
file may be too low.  Edit the riak_sysmon section of that file and
revise the ceilings upward appropriately, particularly the gs_ms_limit
item, since that's the one that you might be seeing excessive
notifications.  You may also want to change the heap_word_limit item,
also.

-Scott



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