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https://issues.apache.org/jira/browse/HBASE-25982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359282#comment-17359282
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Yulin Niu commented on HBASE-25982:
-----------------------------------
HBASE-25933 has resolved
> NettyRpcServerRequestDecoder.exceptionCaught log e instead of e.getCause
> ------------------------------------------------------------------------
>
> Key: HBASE-25982
> URL: https://issues.apache.org/jira/browse/HBASE-25982
> Project: HBase
> Issue Type: Improvement
> Reporter: Yulin Niu
> Assignee: Yulin Niu
> Priority: Minor
>
> After this change, we can get exception, otherwise null
> 2021-06-08T18:50:38,235 TRACE [NettyRpcServer-4-2]
> ipc.NettyRpcServerRequestDecoder(76): Connection /127.0.1.1:46443; caught
> unexpected downstream exception.2021-06-08T18:50:38,235 DEBUG
> [NettyRpcServer-4-2] ipc.NettyRpcServerRequestDecoder(76): Connection
> /127.0.1.1:46443; caught unexpected downstream
> exception.org.apache.hadoop.hbase.ipc.UnknownServiceException:
> CompactionService at
> org.apache.hadoop.hbase.ipc.ServerRpcConnection.processConnectionHeader(ServerRpcConnection.java:498)
> ~[classes/:?] at
> org.apache.hadoop.hbase.ipc.ServerRpcConnection.processOneRpc(ServerRpcConnection.java:450)
> ~[classes/:?] at
> org.apache.hadoop.hbase.ipc.NettyServerRpcConnection.process(NettyServerRpcConnection.java:89)
> ~[classes/:?] at
> org.apache.hadoop.hbase.ipc.NettyServerRpcConnection.process(NettyServerRpcConnection.java:73)
> ~[classes/:?] at
> org.apache.hadoop.hbase.ipc.NettyServerRpcConnection.process(NettyServerRpcConnection.java:68)
> ~[classes/:?] at
> org.apache.hadoop.hbase.ipc.NettyRpcServerRequestDecoder.channelRead(NettyRpcServerRequestDecoder.java:62)
> ~[classes/:?] at
> org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
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