[jira] [Created] (HBASE-25234) [Upgrade]Incompatibility in reading RS report from 2.1 RS when Master is upgraded to 2.2+

["Sanjeet Nishad (Jira)" <ji...@apache.org>]

Sanjeet Nishad created HBASE-25234:
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             Summary: [Upgrade]Incompatibility in reading RS report from 2.1 RS when Master is upgraded to 2.2+
                 Key: HBASE-25234
                 URL: https://issues.apache.org/jira/browse/HBASE-25234
             Project: HBase
          Issue Type: Bug
    Affects Versions: 2.2.3
            Reporter: Sanjeet Nishad


Following the upgrade process suggested in HBASE-21075, when Master is upgraded, the following exception is observed while reading the rs report from old region servers :
{code:java}
2020-11-02 18:25:30,303 WARN [RS-EventLoopGroup-1-2] ipc.RpcServer: /10.20.253.188:16000 is unable to read call parameter from client 10.20.253.188
org.apache.hbase.thirdparty.com.google.protobuf.UninitializedMessageException: Message missing required fields: load.replLoadSink.timestampStarted, load.replLoadSink.totalOpsProcessed
 at org.apache.hbase.thirdparty.com.google.protobuf.AbstractMessage$Builder.newUninitializedMessageException(AbstractMessage.java:477)
 at org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos$RegionServerReportRequest$Builder.build(RegionServerStatusProtos.java:2411)
 at org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos$RegionServerReportRequest$Builder.build(RegionServerStatusProtos.java:2349)
 at org.apache.hadoop.hbase.ipc.ServerRpcConnection.processRequest(ServerRpcConnection.java:654)
 at org.apache.hadoop.hbase.ipc.ServerRpcConnection.processOneRpc(ServerRpcConnection.java:458)
 at org.apache.hadoop.hbase.ipc.ServerRpcConnection.saslReadAndProcess(ServerRpcConnection.java:351)
 at org.apache.hadoop.hbase.ipc.NettyServerRpcConnection.process(NettyServerRpcConnection.java:92)
 at org.apache.hadoop.hbase.ipc.NettyServerRpcConnection.process(NettyServerRpcConnection.java:68)
 at org.apache.hadoop.hbase.ipc.NettyRpcServerRequestDecoder.channelRead(NettyRpcServerRequestDecoder.java:62)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
 at org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321)
 at org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
 at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
 at org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
 at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
 at org.apache.hbase.thirdparty.io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:792)
 at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475)
 at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378)
 at org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
 at org.apache.hbase.thirdparty.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
 at org.apache.hbase.thirdparty.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 at java.lang.Thread.run(Thread.java:748){code}
A similar exception is observed when running *status 'replication'* command using old client (2.1.x).



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