Yuval Degani created HADOOP-16581:
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Summary: ValueQueue does not trigger an async refill when number
of values falls below watermark
Key: HADOOP-16581
URL: https://issues.apache.org/jira/browse/HADOOP-16581
Project: Hadoop Common
Issue Type: Bug
Components: common, kms
Affects Versions: 3.2.0, 2.7.4
Reporter: Yuval Degani
Assignee: Yuval Degani
Fix For: 3.2.1
The ValueQueue facility was designed to cache EDEKs for KMS KeyProviders so
that EDEKs could be served quickly, while the cache is replenished in a
background thread.
The existing code for triggering an asynchronous refill is only triggered when
a key queue becomes empty, rather than when it falls below the configured
watermark.
This is a relatively minor fix in the main code, however, most of the tests
require some changes as they verify the previous unintended behavior.
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