GitHub user radai-rosenblatt opened a pull request:

    KAFKA-4293 - improve ByteBufferMessageSet.deepIterator() performance by 
relying on underlying stream's available() implementation

    provided better available() for ByteBufferInputStream
    provided better available() for KafkaLZ4BlockInputStream
    added KafkaGZIPInputStream with a better available()
    fixed KafkaLZ4BlockOutputStream.close() to properly flush
    Signed-off-by: radai-rosenblatt <>

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To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2025


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