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https://issues.apache.org/jira/browse/HBASE-30495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HBASE-30495 started by Xiao Liu.
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> Incorrect remote RPC retry count when reopening a scanner
> ---------------------------------------------------------
>
> Key: HBASE-30495
> URL: https://issues.apache.org/jira/browse/HBASE-30495
> Project: HBase
> Issue Type: Bug
> Components: Client
> Reporter: Xiao Liu
> Assignee: Xiao Liu
> Priority: Minor
> Fix For: 4.0.0-alpha-1, 2.7.0, 3.1.0, 3.0.1, 2.6.8, 2.5.17
>
>
> {\{AsyncScanSingleRegionRpcRetryingCaller.completeWhenError}} passes
> \{{closeScanner}} to \{{incRPCRetriesMetrics}}, but the method expects
> whether the RegionServer is remote.
> This causes:
> * Remote retries to be undercounted when the scanner is already closed, e.g.
> after \{{ScannerResetException}}.
> * Local retries to be incorrectly counted as remote when the scanner needs
> closing, e.g. after \{{OutOfOrderScannerNextException}}.
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