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https://issues.apache.org/jira/browse/HBASE-17182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15727254#comment-15727254
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Jian Yi commented on HBASE-17182:
---------------------------------
I test it, the server close the scanner before timeout. if call closeScanner
will get UnknownScannerException.
org.apache.hadoop.hbase.UnknownScannerException:
org.apache.hadoop.hbase.UnknownScannerException: Name: 49140346, already closed?
at
org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2374)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:33648)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2170)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:109)
at
org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
at java.lang.Thread.run(Thread.java:745)
> Memory leak from openScanner of HBase thrift2
> ---------------------------------------------
>
> Key: HBASE-17182
> URL: https://issues.apache.org/jira/browse/HBASE-17182
> Project: HBase
> Issue Type: Bug
> Components: Thrift
> Reporter: Jian Yi
> Assignee: Jian Yi
> Attachments: HBASE-17182-V1.patch, HBASE-17182-V2.patch
>
>
> Client call openScanner, but client (coredump or others) not closeScanner,
> the scanner will not be removed from scannerMap.
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