Riak nodes constantly crashing

Ricardo Mayerhofer ricardo.ekm at gmail.com
Tue Oct 25 13:35:07 EDT 2016


What's weird is that the node crashes every minute at the same second. Is
there anything Riak may be running every minute?

On Mon, Oct 24, 2016 at 8:28 PM, Ricardo Mayerhofer <ricardo.ekm at gmail.com>
wrote:

> I'm also pasting the free -m:
>
>              total       used       free     shared    buffers     cached
> Mem:         15039      14557        482          0         37       4594
> -/+ buffers/cache:       9925       5114
> Swap:            0          0          0
>
> On Mon, Oct 24, 2016 at 8:24 PM, Ricardo Mayerhofer <ricardo.ekm at gmail.com
> > wrote:
>
>> Hi Alexander,
>> Thanks for your response. We use multi-backend with bitcask and leveldb.
>>
>> - File descriptors seems to be ok, at least the config.
>>
>> ubuntu at ip-10-2-58-5:/var/log/riak$ sudo su riak
>> sudo: unable to resolve host ip-10-2-58-5
>> riak at ip-10-2-58-5:/var/log/riak$ ulimit -n
>> 65535
>>
>> - Memory seems to be ok as well:
>>
>> KiB Mem: * 15400916 *total,* 14493744 *used,*   907172 *free,*    36244 *
>> buffers
>>
>> - Disk is ok
>>
>> /dev/xvda1       20G  4.1G   15G  22% / # root device
>> /dev/xvdb       148G   69G   72G  49% /mnt/riak-data  # bitcask and riak
>> data disk
>> /dev/xvdc       296G   23G  258G   8% /mnt/riak-data/leveldb #leveldb disk
>>
>> Any other idea? Thanks.
>>
>> On Mon, Oct 24, 2016 at 8:06 PM, Alexander Sicular <siculars at basho.com>
>> wrote:
>>
>>> Disk, memory or file descriptors would be my guess. Bitcask?
>>>
>>>
>>> On Monday, October 24, 2016, Ricardo Mayerhofer <ricardo.ekm at gmail.com>
>>> wrote:
>>>
>>>> Hi all,
>>>> I have a Riak 1.4 where the nodes seems to be constantly crashing. All
>>>> 5 nodes are affected.
>>>>
>>>> However it seems Riak manage to get them up again.
>>>>
>>>> Any idea on whats going on? Erros logs below.
>>>>
>>>> Thanks.
>>>>
>>>> error.log
>>>> ...
>>>> 2016-10-24 21:57:29.185 [error] <0.24570.1174> CRASH REPORT Process
>>>> <0.24570.1174> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>> 2016-10-24 21:58:29.187 [error] <0.7109.1175> CRASH REPORT Process
>>>> <0.7109.1175> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>> 2016-10-24 21:59:29.228 [error] <0.19612.1175> CRASH REPORT Process
>>>> <0.19612.1175> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>> 2016-10-24 22:00:29.218 [error] <0.1356.1176> CRASH REPORT Process
>>>> <0.1356.1176> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>> 2016-10-24 22:01:29.197 [error] <0.11380.1176> CRASH REPORT Process
>>>> <0.11380.1176> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>> 2016-10-24 22:02:29.231 [error] <0.24279.1176> CRASH REPORT Process
>>>> <0.24279.1176> with 0 neighbours crashed with reason: no case clause
>>>> matching {ok,{http_error,"exit\r\n"},<<>>} in mochiweb_http:request/3
>>>> line 107
>>>>
>>>> crash.log
>>>> 2016-10-24 21:51:56 =CRASH REPORT====
>>>>   crasher:
>>>>     initial call: mochiweb_acceptor:init/3
>>>>     pid: <0.28136.1621>
>>>>     registered_name: []
>>>>     exception error: {{case_clause,{ok,{http_error,
>>>> "exit\r\n"},<<>>}},[{mochiweb_http,request,3,[{file,"src/moc
>>>> hiweb_http.erl"},{line,107}]},{proc_lib,init_p_do_apply,3,[{
>>>> file,"proc_lib.erl"},{line,227}]}]}
>>>>     ancestors: ['http_0.0.0.0:8098_mochiweb',riak_core_sup,<0.148.0>]
>>>>     messages: []
>>>>     links: [<0.201.0>,#Port<0.235869290>]
>>>>     dictionary: []
>>>>     trap_exit: false
>>>>     status: running
>>>>     heap_size: 377
>>>>     stack_size: 24
>>>>     reductions: 423
>>>>   neighbours:
>>>> 2016-10-24 21:52:56 =CRASH REPORT====
>>>>   crasher:
>>>>     initial call: mochiweb_acceptor:init/3
>>>>     pid: <0.7845.1622>
>>>>     registered_name: []
>>>>     exception error: {{case_clause,{ok,{http_error,
>>>> "exit\r\n"},<<>>}},[{mochiweb_http,request,3,[{file,"src/moc
>>>> hiweb_http.erl"},{line,107}]},{proc_lib,init_p_do_apply,3,[{
>>>> file,"proc_lib.erl"},{line,227}]}]}
>>>>     ancestors: ['http_0.0.0.0:8098_mochiweb',riak_core_sup,<0.148.0>]
>>>>     messages: []
>>>>     links: [<0.201.0>,#Port<0.235879110>]
>>>>     dictionary: []
>>>>     trap_exit: false
>>>>     status: running
>>>>     heap_size: 377
>>>>     stack_size: 24
>>>>     reductions: 406
>>>> --
>>>> Ricardo Mayerhofer
>>>>
>>>
>>>
>>> --
>>>
>>>
>>> Alexander Sicular
>>> Solutions Architect
>>> Basho Technologies
>>> 9175130679
>>> @siculars
>>>
>>>
>>
>>
>> --
>> Ricardo Mayerhofer
>>
>
>
>
> --
> Ricardo Mayerhofer
>



-- 
Ricardo Mayerhofer
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