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Posted to hdfs-issues@hadoop.apache.org by "Felix N (Jira)" <ji...@apache.org> on 2022/01/06 11:13:00 UTC
[jira] [Updated] (HDFS-16417) RBF: StaticRouterRpcFairnessPolicyController init fails with division by 0 if concurrent ns handler count is configured
[ https://issues.apache.org/jira/browse/HDFS-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Felix N updated HDFS-16417:
---------------------------
Attachment: HDFS-16417.001.patch
Status: Patch Available (was: Open)
> RBF: StaticRouterRpcFairnessPolicyController init fails with division by 0 if concurrent ns handler count is configured
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16417
> URL: https://issues.apache.org/jira/browse/HDFS-16417
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: rbf
> Reporter: Felix N
> Priority: Minor
> Attachments: HDFS-16417.001.patch
>
>
> If {{dfs.federation.router.fairness.handler.count.concurrent}} is configured, unassignedNS is thus empty and {{handlerCount % unassignedNS.size()}} will throw a /0 exception.
> Changed it to assigning extra handlers to concurrent ns in case it's configured.
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