Hi Kelly
1.4.5 - Riak CS
1.4.8 - Riak
Anti Entropy is on (all nodes)
Deactivating n_val_1_get_requests still allows me to cause the issue
(with less occurrence), however a different error has cropped up now:
2014-07-17 21:15:38 =ERROR REPORT====
webmachine error: path="/buckets/<bucket
name>/objects/bf15f98c-eaa1-4ff9-83ff-24c1e7e1380f%2F847c340cfe2f44028d6fd5606f696796%2FAttachment-1.png"
{exit,{{{{case_clause,{error,timeout}},[{riak_cs_manifest_fsm,handle_get_manifests,1,[{file,"src/riak_cs_manifest_fsm.erl"},{line,265}]},{riak_cs_manifest_fsm,waiting_command,3,[{file,"src/riak_cs_manifest_fsm.erl"},{line,201}]},{gen_fsm,handle_msg,7,[{file,"gen_fsm.erl"},{line,494}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,227}]}]},{gen_fsm,sync_send_event,[<0.1383.0>,get_manifests,infinity]}},{gen_fsm,sync_send_event,[<0.1382.0>,get_manifest,infinity]}},[{gen_fsm,sync_send_event,3,[{file,"gen_fsm.erl"},{line,214}]},{riak_cs_wm_utils,ensure_doc,2,[{file,"src/riak_cs_wm_utils.erl"},{line,236}]},{riak_cs_wm_object,authorize,2,[{file,"src/riak_cs_wm_object.erl"},{line,64}]},{riak_cs_wm_common,authorize,2,[{file,"src/riak_cs_wm_common.erl"},{line,396}]},{riak_cs_wm_common,forbidden,2,[{file,"src/riak_cs_wm_common.erl"},{line,182}]},{webmachine_resource,resource_call,3,[{file,"src/webmachine_resource.erl"},{line,186}]},{webmachine_resource,do,3,
[{
file,"src/webmachine_resource.erl"},{line,142}]},{webmachine_decision_core,resource_call,1,[{file,"src/webmachine_decision_core.erl"},{line,48}]}]}
[{gen_fsm,sync_send_event,3,[{file,"gen_fsm.erl"},{line,214}]},{riak_cs_wm_utils,ensure_doc,2,[{file,"src/riak_cs_wm_utils.erl"},{line,236}]},{riak_cs_wm_object,authorize,2,[{file,"src/riak_cs_wm_object.erl"},{line,64}]},{riak_cs_wm_common,authorize,2,[{file,"src/riak_cs_wm_common.erl"},{line,396}]},{riak_cs_wm_common,forbidden,2,[{file,"src/riak_cs_wm_common.erl"},{line,182}]},{webmachine_resource,resource_call,3,[{file,"src/webmachine_resource.erl"},{line,186}]},{webmachine_resource,do,3,[{file,"src/webmachine_resource.erl"},{line,142}]},{webmachine_decision_core,resource_call,1,[{file,"src/webmachine_decision_core.erl"},{line,48}]}]
Thanks,
Dave
On 18 Jul 2014, at 2:19 am, Kelly McLaughlin <[email protected]
<mailto:[email protected]>> wrote:
Dave,
Can you tell me what versions of Riak and Riak CS you have
installed? Do you have AAE enabled or disabled? It's tough to come
up with an explanation without more information, but I would try
setting n_val_1_get_requests to false and see if you continue to
experience the problem. My guess is that will resolve the issue,
but let me know what happens.
Kelly
On July 17, 2014 at 1:00:19 AM, Dave Finster
([email protected] <mailto:[email protected]>) wrote:
Hi Everyone
Spent a bit of time trying to debug this one and not sure were to
from here. The use case that appears to cause this breakage is a
web page that links to 8 x 10MB images and it attempts to fetch
them simultaneously.
Occasionally, one or two of the images will just fail to load,
while other times they all work file. I've tracked it down to the
crash below. It isn't always the same image. To make the problem
more repeatable, I forced our load balancer into only using a
single Riak-CS node, so it will be getting hit with all the
requests. We are using HAProxy out the front and are running
SmartOS 64-bit images across the board.
arekinath helped me look into it and one thought was that I was
hit by the AAE bug prior to 1.4.8, but even clearing the AAE made
no difference. The n-val on the buckets is 3 and its a 4-node
cluster. All 4 nodes have both a Riak and a Riak-CS node on it. I
also have pb_backlog turned up to 256, n_val_1_get_requests set to
true and fold_objects_for_list_keys set to true. 'ring-status'
shows that the whole ring is reachable.
Any idea on how to diagnose this one further?
2014-07-17 06:38:54 =CRASH REPORT====
crasher:
initial call: mochiweb_acceptor:init/3
pid: <0.26119.1>
registered_name: []
exception exit:
{{normal,{gen_fsm,sync_send_event,[<0.27617.1>,get_next_chunk,infinity]}},[{gen_fsm,sync_send_event,3,[{file,"gen_fsm.erl"},{line,214}]},{riak_cs_wm_utils,streaming_get,4,[{file,"src/riak_cs_wm_utils.erl"},{line,272}]},{webmachine_decision_core,'-make_encoder_stream/3-fun-0-',3,[{file,"src/webmachine_decision_core.erl"},{line,667}]},{webmachine_request,send_stream_body_no_chunk,2,[{file,"src/webmachine_request.erl"},{line,334}]},{webmachine_request,send_response,3,[{file,"src/webmachine_request.erl"},{line,398}]},{webmachine_request,call,2,[{file,"src/webmachine_request.erl"},{line,251}]},{webmachine_decision_core,wrcall,1,[{file,"src/webmachine_decision_core.erl"},{line,42}]},{webmachine_decision_core,finish_response,3,[{file,"src/webmachine_decision_core.erl"},{line,92}]}]}
ancestors: [object_web_mochiweb,riak_cs_sup,<0.143.0>]
messages: []
links: [<0.298.0>,#Port<0.12015>]
dictionary:
[{reqstate,{wm_reqstate,#Port<0.12015>,[{'content-encoding',"identity"},{'content-type',"application/octet-stream"},{resource_module,riak_cs_wm_object}],undefined,"10.4.242.1",{wm_reqdata,'GET',http,{1,1},"10.4.242.1",undefined,[],"/buckets/<the
bucket
name>/objects/bf15f98c-eaa1-4ff9-83ff-24c1e7e1380f%2F847c340cfe2f44028d6fd5606f696796%2FAttachment-1.png","/buckets/<the
bucket
name>/objects/bf15f98c-eaa1-4ff9-83ff-24c1e7e1380f%2F847c340cfe2f44028d6fd5606f696796%2FAttachment-1.png?Signature=U0By3mIwaRIVBHNcYhSt6r5QgPk%3D&Expires=1405580057&AWSAccessKeyId=DGTXHHWIEDF4XUBSBYVI",[{bucket,"<the
bucket
name>"},{object,"bf15f98c-eaa1-4ff9-83ff-24c1e7e1380f%2F847c340cfe2f44028d6fd5606f696796%2FAttachment-1.png"}],[],"../../../..",{200,undefined},1073741824,67108864,[{"_ga","GA1.3.643660316.1404789703"}],[{"Signature","U0By3mIwaRIVBHNcYhSt6r5QgPk="},{"Expires","1405580057"},{"AWSAccessKeyId","DGTXHHWIEDF4XUBSBYVI"}],{9,{"cookie",{'Cookie',"_ga=GA1.3.643660316.1404789703"},{"accept-language",{'Accept-Language',"en-US,en;q=0.8"},{"accept-encoding",{'Accept-Encoding',"gzip,deflate,sdch"},{"accept",{'Accept',"image/webp,*/*;q=0.8"},nil,nil},nil},{"connection",{'Connection',"keep-alive"},nil,nil}},{"referer",{'Referer',"<the
referrer>"},{"host",{'Host',"<our riak-cs host
name>"},nil,nil},{"user-agent",{'User-Agent',"Mozilla/5.0
(Macintosh; Intel Mac OS X 10_10_0) AppleWebKit/537.36 (KHTML,
like Gecko) Chrome/35.0.1916.153
Safari/537.36"},nil,{"x-rcs-rewrite-path",{"x-rcs-rewrite-path","/<the
bucket
name>/bf15f98c-eaa1-4ff9-83ff-24c1e7e1380f/847c340cfe2f44028d6fd5606f696796/Attachment-1.png?AWSAccessKeyId=DGTXHHWIEDF4XUBSBYVI&Expires=1405580057&Signature=U0By3mIwaRIVBHNcYhSt6r5QgPk%3D"},nil,nil}}}}},not_fetched_yet,false,{3,{"content-type",{"Content-Type","application/octet-stream"},nil,{"etag",{"ETag","\"a3a32cf5d8f502d7e8d35fd8412a6878\""},nil,
trap_exit: false
status: running
heap_size: 28657
stack_size: 24
reductions: 80773
neighbours:
Thanks,
Dave Finster
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