apache storm reliablity timeout configuration -

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i have nodejs->kafka>storm->mongo deployed in linux ubuntu. normal originally. changed method in storm worker makes storm worker process message slow, around 1 minute per message, notice message sent again , again storm. revert original method, fine. (original method process time 90ms per message).

i guess storm reliability come player. when message not acknowledged, or time out, sends message again.

if guess right, how configure timeout?

if guess wrong, why same message sent twice or 3 times?

you can set timeout via configuration parameter config.topology_message_timeout_secs. see https://storm.apache.org/javadoc/apidocs/backtype/storm/config.html#topology_message_timeout_secs

the default value 30 seconds, see defaults.yaml here: https://github.com/apache/storm/blob/master/conf/defaults.yaml

# maximum amount of time message has complete before it's considered failed topology.message.timeout.secs: 30

when tuple fails, should show in storm ui , should logged, (maybe need adjust log level). can double check if tuple times out or not.


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