Hi,
I am getting loads of exceptions such as :
java.lang.RuntimeException: java.net.UnknownHostException: $MYSERVER: $MYSERVER
at
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:107)
at
backtype.storm.utils.DisruptorQueue.consumeBatch(DisruptorQueue.java:66)
at backtype.storm.disruptor$consume_batch.invoke(disruptor.clj:74)
at
backtype.storm.daemon.executor$eval3848$fn__3849$fn__3864$fn__3893.invoke(executor.clj:539)
at backtype.storm.util$async_loop$fn__384.invoke(util.clj:433)
at clojure.lang.AFn.run(AFn.java:24)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.net.UnknownHostException: $MYSERVER: $MYSERVER
at java.net.InetAddress.getLocalHost(InetAddress.java:1473)
at backtype.storm.daemon.executor$metrics_tick.invoke(executor.clj:279)
at
backtype.storm.daemon.executor$eval3848$fn__3849$tuple_action_fn__3855.invoke(executor.clj:435)
at
backtype.storm.daemon.executor$mk_task_receiver$fn__3839.invoke(executor.clj:401)
at
backtype.storm.disruptor$clojure_handler$reify__1560.onEvent(disruptor.clj:58)
at
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:104)
... 6 more
Caused by: java.net.UnknownHostException: ns316721.ip-37-187-131.eu
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901)
at
java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1293)
at java.net.InetAddress.getLocalHost(InetAddress.java:1469)
... 11 more
where $MYSERVER is the hostname of the machine where Storm is running.
These exceptions happen at random and could be due to an issue with Bind,
which for some reason fails to return the information about the localhost.
>From what I understand from the code in [1], this happens when processing
the metrics-ticks. Would there be a way to store the information about the
localhost once and for all instead of asking for it every time and if so,
how would you do that in Clojure?
Thanks
Julien
[1]
https://github.com/apache/incubator-storm/blob/master/storm-core/src/clj/backtype/storm/daemon/executor.clj#L278
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