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https://issues.apache.org/jira/browse/FLUME-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292157#comment-13292157
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Patrick Wendell commented on FLUME-1093:
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I had this same problem with the HBase sink and it was extremely frustrating.
It's tough because:
1) There is no error message - flume just hangs.
2) JStack doesn't give any helpful output.
Perhaps flume is eating an error here internally? It would be great if someone
could pick this up - it is a major blocker to smooth deployment.
> HDFSEventSink gives no indication of failure when Hadoop jars aren't in the
> classpath
> -------------------------------------------------------------------------------------
>
> Key: FLUME-1093
> URL: https://issues.apache.org/jira/browse/FLUME-1093
> Project: Flume
> Issue Type: Bug
> Components: Sinks+Sources
> Affects Versions: v1.2.0
> Environment: CentOS 5.7 64-bit
> Reporter: Will McQueen
> Priority: Critical
> Fix For: v1.2.0
>
>
> If HDFS sink starts up, but the hadoop jars aren't in the classpath, then the
> HDFS sink doesn't fail-fast with an error. I think we should fail the
> validation of the config file if it specifies an HDFS Sink when the hadoop
> jars aren't in the classpath.
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