I believe I have been having the same problem, so I appreciate this information.
When I run ulimit on my machine I get "unlimited." Is this acceptable? I ran ulimit -n 1024, and even after that it still returns unlimited. Chris On Mon, Jul 19, 2010 at 6:40 AM, Shane Holloway <[email protected]>wrote: > Thanks -- ulimit -n 1024 fixed my problem. It's wonderfully stable now -- > even under high load. > > > On Jul 19, 2010, at 2:30 AM, Daniel Reverri wrote: > > Hi Shane, > > Can you try increasing the number of allowed open file handles on your > system? > ulimit -n 1024 > > You can check this setting from a riak console by typing: > os:cmd("ulimit -a"). > > Thanks, > Dan > > Sent from my iPhone > > On Jul 18, 2010, at 10:32 PM, Shane Holloway <[email protected]> > wrote: > > I'm having a bit of a problem with Riak. When I keep my new documents to > about 10 per second, Riak works fine. But as I increase my speed to about > 100 docs per second, Riak gets dramatically slow. After a while, the beam > process takes 100% of my CPU and no longer responds to ping/stop or any > other command from the bin folder. I end up sending kill TERM to stop the > process. > > If I restart Riak, the bitcask backend seems to be limited to about 1-2 > document stores per second, but read seems fairly responsive still. I'd > appreciate any thoughts or troubleshooting tips you may have. It's an > in-development database with demo data, so I can run any experiments you'd > like to see. > > Thanks, > -Shane > > > > Riak/riakOne% ./bin/riak-admin status > 1-minute stats for '[email protected]' > ------------------------------------------- > vnode gets : 104 > vnode_puts : 103 > vnode_gets_total : 136 > vnode_puts_total : 127 > node_gets : 36 > node_gets_total : 47 > node_get_fsm_time_mean : 2635.1111111111113 > node_get_fsm_time_median : 667 > node_get_fsm_time_95 : 9156 > node_get_fsm_time_99 : 40652 > node_get_fsm_time_100 : 40652 > node_puts : 36 > node_puts_total : 44 > *node_put_fsm_time_mean : 1670575.611111111* > *node_put_fsm_time_median : 1157* > *node_put_fsm_time_95 : 23900* > *node_put_fsm_time_99 : 60000511* > *node_put_fsm_time_100 : 600005*11 > cpu_nprocs : 0 > cpu_avg1 : 0 > cpu_avg5 : 0 > cpu_avg15 : 0 > mem_total : 0 > mem_allocated : 0 > *disk : [{"none",0,0}]* > nodename : '[email protected]' > connected_nodes : ['[email protected]'] > sys_driver_version : <<"1.5">> > sys_global_heaps_size : 0 > sys_heap_type : private > sys_logical_processors : 2 > sys_otp_release : <<"R13B04">> > sys_process_count : 167 > sys_smp_support : true > sys_system_version : <<"Erlang R13B04 (erts-5.7.5) [source] [64-bit] > [smp:2:2] [rq:2] [async-threads:5] [hipe] [kernel-poll:true]\n">> > sys_system_architecture : <<"i386-apple-darwin9.4.0">> > sys_threads_enabled : true > sys_thread_pool_size : 5 > sys_wordsize : 8 > ring_members : ['[email protected]'] > ring_num_partitions : 64 > ring_ownership : <<"[{'[email protected]',64}]">> > ring_creation_size : 64 > storage_backend : riak_kv_bitcask_backend > pbc_connects_total : 0 > pbc_connects : 0 > pbc_active : 0 > > _______________________________________________ > riak-users mailing list > [email protected] > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > > > > _______________________________________________ > riak-users mailing list > [email protected] > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > > -- Chris Dawson 971-533-8335
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