Daryn Sharp created HDFS-12171:
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Summary: Reduce IIP object allocations for inode lookup
Key: HDFS-12171
URL: https://issues.apache.org/jira/browse/HDFS-12171
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 2.7.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
{{IIP#getReadOnlyINodes}} is invoked frequently for EZ and EC lookups. It
allocates unnecessary objects to make the primitive array an immutable array
list. IIP already has a method for indexed inode retrieval that can be tweaked
to further improve performance.
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