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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (GEARPUMP-122) KafkaSource Stuck
Date Tue, 31 May 2016 07:40:13 GMT


ASF GitHub Bot commented on GEARPUMP-122:

Github user huafengw commented on the pull request:
    UT failed

> KafkaSource Stuck
> -----------------
>                 Key: GEARPUMP-122
>                 URL:
>             Project: Apache Gearpump
>          Issue Type: Bug
>          Components: kafka
>    Affects Versions: 0.8.0
>            Reporter: Qi Shu
>            Assignee: Manu Zhang
>             Fix For: 0.8.1
>         Attachments: 2.png, screenshot-1.png
> Kafka's version is 2.10- and deployed on a cluster of 3 machines. Gearpump's version
is 2.11-0.8.0 and deployed on local mode.
> The app running on gearpump is a java example Kafka2Kafka.
> The topic has millions of messages in It。
> After app started for a while, there were no messages received from kafka, but kafka
console can recevie messages from that topic.
> And if I use the kafka source without offset checkpoint, then messages begin to flow.
> "screenshot-1.png" means app started for 7 minutes  and no messages received from kafka
> "2.png" was a screen shot of JProfiler, I use JProfiler to watch the thread of Gearpump,
and it seems the kafka source stucked when doing offset checkpoint.

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