Github user Angus-Slalom commented on the issue:
https://github.com/apache/storm/pull/2157
@dossett the AbstractHDFSBolt uses AbstractHDFSWriter throughout, so any
implementation of a writer has to inherit from that. For example the
makeNewWriter protected function has to return an AbstractHDFSWriter
We've been subclassing the HDFS bolt to add more logging and to make tweaks
to our AVRO output
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