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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2022/06/30 11:31:33 UTC

[GitHub] [ozone] JacksonYao287 commented on pull request #3570: HDDS-6127. file checksum to support both CRC32 and CRC32C.

JacksonYao287 commented on PR #3570:
URL: https://github.com/apache/ozone/pull/3570#issuecomment-1171104901

   > Just a question - does this actually help if the block sizes are different? Eg HDFS is mostly 128MB, Ozone is 256MB by default. Combining checksums with different blocks sizes will give a different combined checksum, right?
   
   md5md5crc32 will be influenced by chunk size and block size. 
   but for composite-crc32c,  since crc32c support incremental computation, block size and chunk size will take no effect on the final file checksum.


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