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Posted to common-issues@hadoop.apache.org by "Vikas Vishwakarma (JIRA)" <ji...@apache.org> on 2017/04/17 02:21:41 UTC
[jira] [Created] (HADOOP-14313) Replace/improve Hadoop's byte[]
comparator
Vikas Vishwakarma created HADOOP-14313:
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Summary: Replace/improve Hadoop's byte[] comparator
Key: HADOOP-14313
URL: https://issues.apache.org/jira/browse/HADOOP-14313
Project: Hadoop Common
Issue Type: Improvement
Components: common
Reporter: Vikas Vishwakarma
Hi,
Recently we were looking at the Lexicographic byte array comparison in HBase. We did microbenchmark for the byte array comparator of HADOOP, HBase Vs the latest byte array comparator from guava ( https://github.com/google/guava/blob/master/guava/src/com/google/common/primitives/UnsignedBytes.java#L362 ) and observed that the guava main branch version is much faster.
Specifically we see very good improvement when the byteArraySize%8 != 0 and also for large byte arrays. I will update the benchmark results using JMH for Hadoop vs Guava. For the jira on HBase, please refer HBASE-17877.
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