Bryan Beaudreault created HBASE-28459:
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Summary: HFileOutputFormat2 ClassCastException with s3 magic
committer
Key: HBASE-28459
URL: https://issues.apache.org/jira/browse/HBASE-28459
Project: HBase
Issue Type: Bug
Reporter: Bryan Beaudreault
In hadoop3 there's the s3 magic committer which can speed up s3 writes
dramatically. In HFileOutputFormat2.createRecordWriter we cast the passed in
committer as a FileOutputCommitter. This causes a class cast exception when the
s3 magic committer is enabled:
Error: java.lang.ClassCastException: class
org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitter cannot be cast to
class org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
We can cast to PathOutputCommitter instead, but its only available in hadoop3+.
So we will need to use reflection to work around this in branch-2.
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