Hi guys
we are running a relatively big map reduce (covers around 20-30 millions
records) and I'm seeing a lot of these in the logs:
...
2012-02-06 11:14:57.631 [info]
<0.5703.3625>@riak_core_sysmon_handler:handle_event:85 monitor long_gc
<0.2086.3871> [{initial_call,{erlang,apply,2}},{almost_
current_function,{gen,do_call,4}}]
[{timeout,253},{old_heap_block_size,0},{heap_block_size,59786060},{mbuf_size,0},{stack_size,17},{old_heap_size,0},{heap_si
ze,17553801}]
2012-02-06 11:14:57.632 [info]
<0.5703.3625>@riak_core_sysmon_handler:handle_event:85 monitor large_heap
<0.2086.3871> [{initial_call,{erlang,apply,2}},{almo
st_current_function,{gen,do_call,4}}]
[{old_heap_block_size,0},{heap_block_size,59786060},{mbuf_size,0},{stack_size,17},{old_heap_size,0},{heap_size,17553801
}]
2012-02-06 11:15:10.995 [info]
<0.5703.3625>@riak_core_sysmon_handler:handle_event:85 monitor long_gc
<0.2086.3871> [{initial_call,{erlang,apply,2}},{almost_
current_function,{gen,do_call,4}}]
[{timeout,240},{old_heap_block_size,0},{heap_block_size,59786060},{mbuf_size,0},{stack_size,17},{old_heap_size,0},{heap_si
ze,17479047}]
2012-02-06 11:15:10.995 [info]
<0.5703.3625>@riak_core_sysmon_handler:handle_event:85 monitor large_heap
<0.2086.3871> [{initial_call,{erlang,apply,2}},{almo
st_current_function,{gen,do_call,4}}]
[{old_heap_block_size,0},{heap_block_size,59786060},{mbuf_size,0},{stack_size,17},{old_heap_size,0},{heap_size,17479047
}]This is probably harmless being logged as INFO, however, seeing a lot of these, I would be glad to understand why these are happening and what I can do to prevent them? Thanks Gal
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