由於更新了最新的Hbase為2.0，在其基礎上部署OpenTSDB會導致異常：

Exception in thread "main" java.lang.RuntimeException: Initialization failed     at net.opentsdb.tools.TSDMain.main(TSDMain.java:237) Caused by: com.stumbleupon.async.DeferredGroupException: At least one of the Deferreds failed, first exception:     at com.stumbleupon.async.DeferredGroup.done(DeferredGroup.java:169)     at com.stumbleupon.async.DeferredGroup.recordCompletion(DeferredGroup.java:142)     at com.stumbleupon.async.DeferredGroup.access$000(DeferredGroup.java:36)     at com.stumbleupon.async.DeferredGroup$1Notify.call(DeferredGroup.java:82)     at com.stumbleupon.async.Deferred.doCall(Deferred.java:1278)     at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257)     at com.stumbleupon.async.Deferred.access$300(Deferred.java:430)     at com.stumbleupon.async.Deferred$Continue.call(Deferred.java:1366)     at com.stumbleupon.async.Deferred.doCall(Deferred.java:1278)     at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257)     at com.stumbleupon.async.Deferred.handleContinuation(Deferred.java:1313)     at com.stumbleupon.async.Deferred.doCall(Deferred.java:1284)     at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257)     at com.stumbleupon.async.Deferred.callback(Deferred.java:1005)     at org.hbase.async.HBaseRpc.callback(HBaseRpc.java:712)     at org.hbase.async.RegionClient.decode(RegionClient.java:1533)     at org.hbase.async.RegionClient.decode(RegionClient.java:88)     at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500)     at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:485)     at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)     at org.hbase.async.RegionClient.handleUpstream(RegionClient.java:1223)     at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)     at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)     at org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142)     at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)     at org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStateAwareChannelHandler.java:36)     at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)     at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)     at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:294)     at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)     at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)     at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)     at org.hbase.async.HBaseClient$RegionClientPipeline.sendUpstream(HBaseClient.java:3121)     at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)     at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)     at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)     at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)     at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)     at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)     at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)     at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang.Thread.run(Thread.java:748) Caused by: org.hbase.async.RemoteException: org.apache.hadoop.hbase.exceptions.UnknownProtocolException: Is this a pre-hbase-1.0.0 or asynchbase client? Client is invoking getClosestRowBefore removed in hbase-2.0.0 replaced by reverse Scan.     at org.apache.hadoop.hbase.regionserver.RSRpcServices.get(RSRpcServices.java:2438)     at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41998)     at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)     at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)

    at org.hbase.async.RegionClient.makeException(RegionClient.java:1755)     at org.hbase.async.RegionClient.decodeException(RegionClient.java:1773)     at org.hbase.async.RegionClient.decode(RegionClient.java:1485)     at org.hbase.async.RegionClient.decode(RegionClient.java:88)     at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500)     at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)     ... 26 more 我部署的是OpenTSDB2.3.0，這個版本不相容Hbase2.0，部署2.3.1即可