Tao Jie created HADOOP-15194:
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Summary: Some properties for FairCallQueue should be reloadable
Key: HADOOP-15194
URL: https://issues.apache.org/jira/browse/HADOOP-15194
Project: Hadoop Common
Issue Type: Improvement
Reporter: Tao Jie
When trying to make use of FairCallQueue for a large cluster, it is not easy to
set the properties appropriately at the first time. User may adjust those
properties frequently and restarting the namenode costs a lot for a large
multi-user hadoop clluster. We should support to reload some of those
properties in configuration without restarting.
Related properties:
ipc.8020.faircallqueue.multiplexer.weights
ipc.8020.faircallqueue.decay-scheduler.thresholds
ipc.8020.decay-scheduler.backoff.responsetime.thresholds
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