No, its on RHE on real hardware...
Although we went through a network upgrade couple day ago and all sort of
things started failing....


On Wed, Jul 23, 2014 at 1:43 PM, Andrew Montalenti <[email protected]>
wrote:

> Tomas,
>
> You don't happen to be running Ubuntu 14.04 on Xen kernel, do you? Eg on
> Amazon EC2.
>
> I discovered an issue where running Storm across many workers on that OS
> led to me hitting an annoying network driver bug that would cause timeouts
> and topology freezes like you are seeing. Check dmesg for odd messages from
> your network stack. Just a guess.
>
> (copied from my reply to another similar thread)
>
> -AM
> On Jul 23, 2014 10:07 AM, "Tomas Mazukna" <[email protected]> wrote:
>
>> I am really puzzled why processing stopped in the topology.
>> Looks like the acking threads all stopped communicating. Only hint I saw
>> was this netty exception:
>> Any hints how to prevent this from happening again?
>>
>> 2014-07-23 08:56:03 b.s.m.n.Client [INFO] Closing Netty Client
>> Netty-Client-ndhhadappp3.tsh.mis.mckesson.com/10.48.132.224:9703
>>
>> 2014-07-23 08:56:03 b.s.m.n.Client [INFO] Waiting for pending batchs to
>> be sent with
>> Netty-Client-ndhhadappp3.tsh.mis.mckesson.com/10.48.132.224:9703...,
>> timeout: 600000ms, pendings: 0
>>
>> 2014-07-23 08:56:03 b.s.m.n.Client [INFO] Closing Netty Client
>> Netty-Client-ndhhadappp3.tsh.mis.mckesson.com/10.48.132.224:9700
>>
>> 2014-07-23 08:56:03 b.s.m.n.Client [INFO] Waiting for pending batchs to
>> be sent with
>> Netty-Client-ndhhadappp3.tsh.mis.mckesson.com/10.48.132.224:9700...,
>> timeout: 600000ms, pendings: 0
>>
>> 2014-07-23 08:56:03 b.s.util [ERROR] Async loop died!
>>
>> java.lang.RuntimeException: java.lang.RuntimeException: Client is being
>> closed, and does not take requests any more
>>
>>         at
>> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:128)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:99)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.disruptor$consume_loop_STAR_$fn__758.invoke(disruptor.clj:94)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at backtype.storm.util$async_loop$fn__457.invoke(util.clj:431)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na]
>>
>>         at java.lang.Thread.run(Thread.java:745) [na:1.7.0_60]
>>
>> Caused by: java.lang.RuntimeException: Client is being closed, and does
>> not take requests any more
>>
>>         at backtype.storm.messaging.netty.Client.send(Client.java:194)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.utils.TransferDrainer.send(TransferDrainer.java:54)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.daemon.worker$mk_transfer_tuples_handler$fn__5927$fn__5928.invoke(worker.clj:322)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.daemon.worker$mk_transfer_tuples_handler$fn__5927.invoke(worker.clj:320)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.disruptor$clojure_handler$reify__745.onEvent(disruptor.clj:58)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         at
>> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:125)
>> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
>>
>>         ... 6 common frames omitted
>>
>> 2014-07-23 08:56:03 b.s.util [INFO] Halting process: ("Async loop died!")
>>
>>
>> Configuration:
>>
>> worker.childopts: "-Xmx2048m -Xss256k -XX:MaxPermSize=256m
>> -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseConcMarkSweepGC
>> -XX:NewSize=128m -XX:CMSInitiatingOccupancyFraction=70
>> -XX:-CMSConcurrentMTEnabled -Djava.net.preferIPv4Stack=true"
>>
>> supervisor.childopts: "-Xmx256m -Djava.net.preferIPv4Stack=true"
>>
>> nimbus.childopts: "-Xmx1024m -Djava.net.preferIPv4Stack=true"
>>
>> ui.childopts: "-Xmx768m -Djava.net.preferIPv4Stack=true"
>>
>> nimbus.thrift.threads: 256
>>
>>
>> storm.messaging.transport: "backtype.storm.messaging.netty.Context"
>>
>> storm.messaging.netty.server_worker_threads: 1
>>
>> storm.messaging.netty.client_worker_threads: 1
>>
>> storm.messaging.netty.buffer_size: 5242880
>>
>> storm.messaging.netty.max_retries: 100
>>
>> storm.messaging.netty.max_wait_ms: 1000
>>
>> storm.messaging.netty.min_wait_ms: 100
>>
>>
>> Thanks,
>> --
>> Tomas Mazukna
>> 678-557-3834
>>
>


-- 
Tomas Mazukna
678-557-3834

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