use ThreadLocal for HardLink command buffers
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Key: HADOOP-7181
URL: https://issues.apache.org/jira/browse/HADOOP-7181
Project: Hadoop Common
Issue Type: Improvement
Components: util
Affects Versions: 0.23.0
Reporter: Matt Foley
Assignee: Matt Foley
Fix For: 0.23.0
Referring to HADOOP-7133, Hairong observed that HardLink could be improved if
it used ThreadLocal to implement thread-safe re-usable buffers. We agreed to
open it in a new bug so the original patch could proceed.
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