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https://issues.apache.org/jira/browse/HADOOP-15611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553882#comment-16553882
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Ryan Wu commented on HADOOP-15611:
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Hi [~linyiqun], the following output logs were tested in my local.
{noformat}
2018-07-24 14:24:16,431 DEBUG ipc.DecayRpcScheduler
(DecayRpcScheduler.java:decayCurrentCounts(394)) - Start to decay current
counts.
2018-07-24 14:24:16,431 DEBUG ipc.DecayRpcScheduler
(DecayRpcScheduler.java:decayCurrentCounts(415)) - The decayed count for the
user B is zero and being cleaned.
2018-07-24 14:24:16,431 DEBUG ipc.DecayRpcScheduler
(DecayRpcScheduler.java:decayCurrentCounts(428)) - After decaying the stored
counts, totalDecayedCount: 0, totalRawCallCount: 8.
{noformat}
{noformat}
2018-07-24 14:39:35,214 INFO ipc.WeightedRoundRobinMultiplexer
(WeightedRoundRobinMultiplexer.java:<init>(78)) - WeightedRoundRobinMultiplexer
is being used.
2018-07-24 14:39:35,214 DEBUG ipc.WeightedRoundRobinMultiplexer
(WeightedRoundRobinMultiplexer.java:moveToNextQueue(112)) - Moving to next
queue from queue index 0 to index 1, number of requests left for current queue:
2.
2018-07-24 14:39:35,215 DEBUG ipc.WeightedRoundRobinMultiplexer
(WeightedRoundRobinMultiplexer.java:moveToNextQueue(112)) - Moving to next
queue from queue index 1 to index 2, number of requests left for current queue:
1.
2018-07-24 14:39:35,215 DEBUG ipc.WeightedRoundRobinMultiplexer
(WeightedRoundRobinMultiplexer.java:moveToNextQueue(112)) - Moving to next
queue from queue index 2 to index 0, number of requests left for current queue:
4.
{noformat}
> Improve log in FairCallQueue
> ----------------------------
>
> Key: HADOOP-15611
> URL: https://issues.apache.org/jira/browse/HADOOP-15611
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 3.1.0
> Reporter: Ryan Wu
> Priority: Minor
> Attachments: HADOOP-15611.001.patch, HADOOP-15611.002.patch,
> HADOOP-15611.003.patch
>
>
> In the usage of the FairCallQueue, we find there missing some Key log. Only a
> few logs are printed, it makes us hard to learn and debug this feature.
> At least, following places can print more logs.
> * DecayRpcScheduler#decayCurrentCounts
> * WeightedRoundRobinMultiplexer#moveToNextQueue
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