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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HADOOP-17165) Implement service-user feature in DecayRPCScheduler
Date Tue, 08 Sep 2020 17:05:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-17165?focusedWorklogId=480287&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-480287

ASF GitHub Bot logged work on HADOOP-17165:

                Author: ASF GitHub Bot
            Created on: 08/Sep/20 17:04
            Start Date: 08/Sep/20 17:04
    Worklog Time Spent: 10m 
      Work Description: sunchao commented on a change in pull request #2240:
URL: https://github.com/apache/hadoop/pull/2240#discussion_r485068150

File path: hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/DecayRpcScheduler.java
@@ -178,6 +188,7 @@
   private static final double PRECISION = 0.0001;
   private MetricsProxy metricsProxy;
   private final CostProvider costProvider;
+  private Set<String> serviceUsernames;

Review comment:
       nit nit: usually it is `UserName` instead of `Username`, so better follow that pattern.

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Issue Time Tracking

    Worklog Id:     (was: 480287)
    Time Spent: 1.5h  (was: 1h 20m)

> Implement service-user feature in DecayRPCScheduler
> ---------------------------------------------------
>                 Key: HADOOP-17165
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17165
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Takanobu Asanuma
>            Assignee: Takanobu Asanuma
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HADOOP-17165.001.patch, HADOOP-17165.002.patch, after.png, before.png
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
> In our cluster, we want to use FairCallQueue to limit heavy users, but not want to restrict
certain users who are submitting important requests. This jira proposes to implement the service-user
feature that the user is always scheduled high-priority queue.
> According to HADOOP-9640, the initial concept of FCQ has this feature, but not implemented

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