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https://issues.apache.org/jira/browse/HBASE-21937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zheng Hu updated HBASE-21937:
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Attachment: (was:
0001-HBASE-21951-Abstract-an-ByteBuffOutputStream-for-bui.patch)
> Make the Compression#decompress can accept ByteBuff as input
> -------------------------------------------------------------
>
> Key: HBASE-21937
> URL: https://issues.apache.org/jira/browse/HBASE-21937
> Project: HBase
> Issue Type: Sub-task
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
>
> When decompressing an compressed block, we are also allocating
> HeapByteBuffer for the unpacked block. should allocate ByteBuff from the
> global ByteBuffAllocator, skimmed the code, the key point is, we need an
> ByteBuff decompress interface, not the following:
> {code}
> # Compression.java
> public static void decompress(byte[] dest, int destOffset,
> InputStream bufferedBoundedStream, int compressedSize,
> int uncompressedSize, Compression.Algorithm compressAlgo)
> throws IOException {
> //...
> }
> {code}
> Not very high priority, let me make the block without compression to be
> offheap firstly.
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