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Subject [GitHub] [hadoop] virajjasani commented on pull request #3061: HADOOP-17152. Provide Hadoop's own Lists utility to reduce dependency on Guava
Date Wed, 02 Jun 2021 06:35:14 GMT

virajjasani commented on pull request #3061:
URL: https://github.com/apache/hadoop/pull/3061#issuecomment-852777497


   @jojochuang HADOOP-17098 provides best reasons for this.
   
   Shading Guava in HADOOP-17288 solves the conflicts of Guava library in Hadoop upstream,
downstreams, and the other projects (hbase,etc..).
   The Guava byte code will still be loaded and be part of the runtime.
   This Jira (when complete) gets rid of the Guava byte code which has the following benefits:
   
   - Reduce memory fooprint. (less classes to load)
   - Better code management: Guava will likely has security updates that forces Hadoop to
adopt new releases and dealing with compatibilities.
   - Avoid struggles analyzing guava performance


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