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https://issues.apache.org/jira/browse/HDFS-16039?focusedWorklogId=610095&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-610095
]
ASF GitHub Bot logged work on HDFS-16039:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Jun/21 07:16
Start Date: 14/Jun/21 07:16
Worklog Time Spent: 10m
Work Description: goiri commented on a change in pull request #3086:
URL: https://github.com/apache/hadoop/pull/3086#discussion_r650097026
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/metrics/RBFMetrics.java
##########
@@ -165,11 +172,46 @@ public RBFMetrics(Router router) throws IOException {
// Initialize the cache for the DN reports
Configuration conf = router.getConfig();
- this.timeOut = conf.getTimeDuration(RBFConfigKeys.DN_REPORT_TIME_OUT,
- RBFConfigKeys.DN_REPORT_TIME_OUT_MS_DEFAULT, TimeUnit.MILLISECONDS);
this.topTokenRealOwners = conf.getInt(
RBFConfigKeys.DFS_ROUTER_METRICS_TOP_NUM_TOKEN_OWNERS_KEY,
RBFConfigKeys.DFS_ROUTER_METRICS_TOP_NUM_TOKEN_OWNERS_KEY_DEFAULT);
+ // Initialize the cache for the DN reports
+ this.dnReportTimeOut = conf.getTimeDuration(
+ RBFConfigKeys.DN_REPORT_TIME_OUT,
+ RBFConfigKeys.DN_REPORT_TIME_OUT_MS_DEFAULT, TimeUnit.MILLISECONDS);
+ long dnCacheExpire = conf.getTimeDuration(
+ RBFConfigKeys.DN_REPORT_CACHE_EXPIRE,
+ RBFConfigKeys.DN_REPORT_CACHE_EXPIRE_MS_DEFAULT,
TimeUnit.MILLISECONDS);
+ this.dnCache = CacheBuilder.newBuilder()
Review comment:
I just want to avoid having two caches of the same thing.
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Issue Time Tracking
-------------------
Worklog Id: (was: 610095)
Time Spent: 1h 10m (was: 1h)
> 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: 1h 10m
> 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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