[ 
https://issues.apache.org/jira/browse/KAFKA-2408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Geoffrey Anderson updated KAFKA-2408:
-------------------------------------
       Reviewer: Ewen Cheslack-Postava
    Description: 
There have been a few spurious failures in ReplicationTest.test_hard_bounce, 
where it was reported that a few of the acked messages were not consumed.

Checking the logs, however, it is clear that they were consumed, but 
ConsoleConsumerService failed to parse.

Lines causing parsing failure looks something like:

779725[2015-08-03 07:25:47,757] ERROR 
[ConsumerFetcherThread-console-consumer-78957_ip-172-31-5-20-1438586715191-249db71c-0-1],
 Error for partition [test_topic,0] to broker 1:class 
kafka.common.NotLeaderForPartitionException 
(kafka.consumer.ConsumerFetcherThread)

(i.e. the consumed message, and a log message appear on the same line)

ConsoleConsumerService simply tries to strip each line of whitespace and parse 
as an integer, which will clearly fail in this case.

Solution should either redirect stderr elsewhere or update parsing to handle 
this.

  was:

There have been a few spurious failures in ReplicationTest.test_hard_bounce, 
where it was reported that a few of the acked messages were not consumed.

Checking the logs, however, it is clear that they were consumed, but 
ConsoleConsumerService failed to parse.

Lines causing parsing failure looks something like:

779725[2015-08-03 07:25:47,757] ERROR 
[ConsumerFetcherThread-console-consumer-78957_ip-172-31-5-20-1438586715191-249db71c-0-1],
 Error for partition [test_topic,0] to broker 1:class 
kafka.common.NotLeaderForPartitionException 
(kafka.consumer.ConsumerFetcherThread)

(i.e. the consumed message, and a log message appear on the same line)

ConsoleConsumerService simply tries to strip each line of whitespace and parse 
as an integer, which will clearly fail in this case.

Solution should either redirect stderr elsewhere or update parsing to handle 
this.


> (new) system tests: ConsoleConsumerService occasionally fails to register 
> consumed message
> ------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-2408
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2408
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Geoffrey Anderson
>            Assignee: Geoffrey Anderson
>             Fix For: 0.8.3
>
>
> There have been a few spurious failures in ReplicationTest.test_hard_bounce, 
> where it was reported that a few of the acked messages were not consumed.
> Checking the logs, however, it is clear that they were consumed, but 
> ConsoleConsumerService failed to parse.
> Lines causing parsing failure looks something like:
> 779725[2015-08-03 07:25:47,757] ERROR 
> [ConsumerFetcherThread-console-consumer-78957_ip-172-31-5-20-1438586715191-249db71c-0-1],
>  Error for partition [test_topic,0] to broker 1:class 
> kafka.common.NotLeaderForPartitionException 
> (kafka.consumer.ConsumerFetcherThread)
> (i.e. the consumed message, and a log message appear on the same line)
> ConsoleConsumerService simply tries to strip each line of whitespace and 
> parse as an integer, which will clearly fail in this case.
> Solution should either redirect stderr elsewhere or update parsing to handle 
> this.



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