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From GitBox <...@apache.org>
Subject [GitHub] [kylin] Smallhi edited a comment on issue #1052: KYLIN-4326 KYLIN support ZSTD codec done!
Date Wed, 01 Apr 2020 03:31:32 GMT
Smallhi edited a comment on issue #1052: KYLIN-4326 KYLIN support ZSTD codec done!
URL: https://github.com/apache/kylin/pull/1052#issuecomment-607005489
 
 
   @shaofengshi  Thanks for your reply! 
   I plan to rewrite this feature and solve these problems:
   1. use third-party lib licenced under  Apache License v2.
   2. If we know the original size of bytes array, when we use zstd  or lz4 to decompress
inputstream, we need't use try catch cluase to extend Bytebuffer size, which I think is more
efficient. so after we serialize bitmap  to BytesWritable , and write the long cardinality
and int byte lenght at the head the byte array user the BytesWritable
   
   

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