Memory Errors when using RiakCS

Kota Uenishi kota at basho.com
Wed Nov 25 04:24:33 EST 2015


Hi Ben,
The memory size of your nodes looks rather small. I wrote a section
for such environment to design right configurations. Hope you could
take a look.

https://github.com/basho/riak_cs/blob/develop/RELEASE-NOTES.md#upgrading-riak---step-3-review-memory-size

On Tue, Nov 24, 2015 at 3:30 AM, Ben Rudolph <brudolph at dimagi.com> wrote:
> Hi,
>
> We've been trying to setup RiakCS for storing files on our website,
> http://commcarehq.org/. It's been difficult for us to deploy because we've
> been having issues with our servers not being able to start Riak due to
> memory errors. Here's what a traceback looks like when I try and start Riak
> with `riak-console`:
>
>> config is OK
>> -config /var/lib/riak-cs/generated.configs/app.2015.11.23.18.11.17.config
>> -args_file /var/lib/riak-cs/generated.configs/vm.2015.11.23.18.11.17.args
>> -vm_args /var/lib/riak-cs/generated.configs/vm.2015.11.23.18.11.17.args
>> Exec:  /usr/lib/riak-cs/erts-5.10.3/bin/erlexec -boot
>> /usr/lib/riak-cs/releases/2.0.1/riak-cs               -config
>> /var/lib/riak-cs/generated.configs/app.2015.11.23.18.11.17.config -args_file
>> /var/lib/riak-cs/generated.configs/vm.2015.11.23.18.11.17.args -vm_args
>> /var/lib/riak-cs/generated.configs/vm.2015.11.23.18.11.17.args
>> -pa /usr/lib/riak-cs/lib/basho-patches -- console
>> Root: /usr/lib/riak-cs
>> Erlang R16B02_basho8 (erts-5.10.3) [source] [64-bit] [smp:8:8]
>> [async-threads:64] [kernel-poll:true] [frame-pointer]
>>
>> =INFO REPORT==== 23-Nov-2015::18:11:18 ===
>>     alarm_handler: {set,{system_memory_high_watermark,[]}}
>> =INFO REPORT==== 23-Nov-2015::18:11:18 ===
>> opening log file: "/var/log/riak-cs/access.log.2015_11_23_18"
>> Eshell V5.10.3  (abort with ^G)
>> (**)1> [os_mon] memory supervisor port (memsup): Erlang has closed
>>
>>
>
> The machines we are trying to deploy to have 8GB of RAM and also running a
> few other services, but have 3-4GB of RAM available. Are there any
> configuration params we can use so it consumes less memory? I've taken a
> look at the `system_memory_high_watermark` which is the error we see
> (http://docs.basho.com/riak/latest/ops/running/recovery/errors/). Our
> configs can be found here in case that's useful:
>
> https://github.com/dimagi/commcarehq-ansible/tree/riak/ansible/roles/riakcs/templates
>
> Any insight would be useful! Thank you!
>
> Ben
>
>
> _______________________________________________
> riak-users mailing list
> riak-users at lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>



-- 
Kota UENISHI / @kuenishi
Basho Japan KK




More information about the riak-users mailing list