Riak 0.11.0 hanging on OSX 10.6

Dan Reverri dan at basho.com
Tue Jul 20 14:00:56 EDT 2010


Hi Chris,

Can you try "ulimit -a"?

Thanks,
Dan

Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
dan at basho.com


On Tue, Jul 20, 2010 at 10:53 AM, Chris Dawson <xrdawson at gmail.com> wrote:

> 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 <shane.holloway at ieee.org>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 <shane.holloway at ieee.org>
>> 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 'riak at 172.20.0.49'
>> -------------------------------------------
>> 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 : 'riak at 172.20.0.49'
>> connected_nodes : ['riak_maint_61716 at 172.20.0.49']
>> 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 : ['riak at 172.20.0.49']
>> ring_num_partitions : 64
>> ring_ownership : <<"[{'riak at 172.20.0.49',64}]">>
>> ring_creation_size : 64
>> storage_backend : riak_kv_bitcask_backend
>> pbc_connects_total : 0
>> pbc_connects : 0
>> pbc_active : 0
>>
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>>
>>
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>>
>
>
> --
> Chris Dawson
> 971-533-8335
>
>
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