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From Sachin Mittal <sjmit...@gmail.com>
Subject getting intermittent TimeoutException at producer side in streams application
Date Sun, 18 Dec 2016 07:26:09 GMT
Hi all,
I have a simple stream application pipeline

>From time to time I get the following exception:
Error sending record to topic test-stream-key-table-changelog
org.apache.kafka.common.errors.TimeoutException: Batch containing 2
record(s) expired due to timeout while requesting metadata from brokers for

What could be causing the issue?
I investigated a bit and saw none of the stage takes a long time. Even in
forEach stage where we commit the output to external db takes sub 100 ms in
worst case.

I have right now done a workaround of
props.put(ProducerConfig.REQUEST_TIMEOUT_MS_CONFIG, 1800000);

Increased the default timeout from 30 seconds to 3 minutes.

However to dig deep into the issue where can the problem be?

Is it that some stage is taking beyond 30 seconds to execute. Or is it some
network issue where it is taking a long time to connect to broker itself?

Any logging that I can enable at the streams side to get more complete

Note that issue occurs in bunches. Then everything works fine for a while
then these exceptions come in bunch and then it works fine for sometime
then again exceptions and so on.

Note that my version is kafka_2.10-


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