Daryn Sharp created HDFS-12172:
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Summary: Reduce EZ lookup overhead
Key: HDFS-12172
URL: https://issues.apache.org/jira/browse/HDFS-12172
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 2.7.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
A number of inefficiencies exist in EZ lookups. These are amplified by
frequent operations like list status. Once one encryption zone exists, all
operations take the performance penalty.
Ex. Operations should not perform redundant lookups. EZ path reconstruction
should be lazy since it's not required in the common case. Renames do not need
to reallocate new IIPs to check parent dirs for EZ.
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