Rajesh Balamohan created HADOOP-14081:
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Summary: S3A: Consider avoiding array copy in S3ABlockOutputStream
(ByteArrayBlock)
Key: HADOOP-14081
URL: https://issues.apache.org/jira/browse/HADOOP-14081
Project: Hadoop Common
Issue Type: Improvement
Components: fs/s3
Reporter: Rajesh Balamohan
Priority: Minor
In {{S3ADataBlocks::ByteArrayBlock}}, data is copied whenever {{startUpload}}
is called. It might be possible to directly access the byte[] array from
ByteArrayOutputStream.
Might have to extend ByteArrayOutputStream and create a method like
getInputStream() which can return ByteArrayInputStream. This would avoid
expensive array copy during large upload.
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