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https://issues.apache.org/jira/browse/HDDS-4047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoyu Yao resolved HDDS-4047.
------------------------------
Fix Version/s: 0.6.0
Resolution: Fixed
Thanks [~maobaolong] for the contribution. Patch has been merged.
> OzoneManager met NPE exception while getServiceList
> ---------------------------------------------------
>
> Key: HDDS-4047
> URL: https://issues.apache.org/jira/browse/HDDS-4047
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Manager
> Affects Versions: 0.6.0
> Reporter: maobaolong
> Assignee: maobaolong
> Priority: Critical
> Labels: pull-request-available
> Fix For: 0.6.0
>
> Attachments: image-2020-07-30-22-46-53-040.png
>
>
> !image-2020-07-30-22-46-53-040.png!
> 2020-07-30 22:28:03,895 [IPC Server handler 77 on default port 9862] WARN
> org.apache.hadoop.ipc.Server: IPC Server handler 77 on default port 9862,
> call Call#61137 Retry#13
> org.apache.hadoop.ozone.om.protocol.OzoneManagerProtocol.submitRequest from
> 9.179.142.158:48848
> java.lang.NullPointerException
> at
> org.apache.hadoop.ozone.om.OzoneManager.getServiceList(OzoneManager.java:2505)
> at
> org.apache.hadoop.ozone.om.OzoneManager.getServiceInfo(OzoneManager.java:2578)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.getServiceList(OzoneManagerRequestHandler.java:451)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.handleReadRequest(OzoneManagerRequestHandler.java:176)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitRequestDirectlyToOM(OzoneManagerProtocolServerSideTranslatorPB.java:218)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.processRequest(OzoneManagerProtocolServerSideTranslatorPB.java:145)
> at
> org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:74)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitRequest(OzoneManagerProtocolServerSideTranslatorPB.java:113)
> at
> org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos$OzoneManagerService$2.callBlockingMethod(OzoneManagerProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:999)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:927)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2915)
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