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https://issues.apache.org/jira/browse/HDFS-16039?focusedWorklogId=614392&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-614392
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ASF GitHub Bot logged work on HDFS-16039:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Jun/21 09:07
Start Date: 24/Jun/21 09:07
Worklog Time Spent: 10m
Work Description: zhuxiangyi commented on a change in pull request #3086:
URL: https://github.com/apache/hadoop/pull/3086#discussion_r657769249
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java
##########
@@ -1757,7 +1757,7 @@ public void testRBFMetricsMethodsRelayOnStateStore() {
// These methods relays on
// {@link RBFMetrics#getActiveNamenodeRegistration()}
assertEquals("{}", metrics.getNameservices());
- assertEquals(0, metrics.getNumLiveNodes());
+ assertEquals(NUM_DNS * 2, metrics.getNumLiveNodes());
Review comment:
GetNumLiveNodes used to obtain dn information through StateStore, and
now it obtains it through RouterRpcServer#getCachedDatanodeReport. Now this
test is not applicable in StateStore, I deleted it.
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Issue Time Tracking
-------------------
Worklog Id: (was: 614392)
Time Spent: 2.5h (was: 2h 20m)
> RBF: Some indicators of RBFMetrics count inaccurately
> ------------------------------------------------------
>
> Key: HDFS-16039
> URL: https://issues.apache.org/jira/browse/HDFS-16039
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: rbf
> Affects Versions: 3.4.0
> Reporter: Xiangyi Zhu
> Assignee: Xiangyi Zhu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> RBFMetrics#getNumLiveNodes, getNumNamenodes, getTotalCapacity
> The current statistical algorithm is to accumulate all Nn indicators, which
> will lead to inaccurate counting. I think that the same ClusterID only needs
> to take one Max and then do the accumulation.
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