org.apache.hadoop.hbase.security.SaslUtil.splitKerberosName throwing NullPointer Exception

[#1]

[Default-IPC-NioEventLoopGroup-1-1] WARN org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise - An exception was thrown by org.apache.hadoop.hbase.ipc.NettyRpcConnection$2.operationComplete()
java.lang.NullPointerException
at org.apache.hadoop.hbase.security.SaslUtil.splitKerberosName(SaslUtil.java:69)
at org.apache.hadoop.hbase.security.provider.GssSaslClientAuthenticationProvider.createClient(GssSaslClientAuthenticationProvider.java:64)
at org.apache.hadoop.hbase.security.AbstractHBaseSaslRpcClient.<init>(AbstractHBaseSaslRpcClient.java:83)
at org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClient.<init>(NettyHBaseSaslRpcClient.java:47)
at org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClientHandler.<init>(NettyHBaseSaslRpcClientHandler.java:72)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection.saslNegotiate(NettyRpcConnection.java:207)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection.access$600(NettyRpcConnection.java:75)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection$2.operationComplete(NettyRpcConnection.java:287)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection$2.operationComplete(NettyRpcConnection.java:275)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:605)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84)
at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:300)
at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:335)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
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)

could anyone please help me with the above highlighted Exception? what could be the reason?

[#2]

@albert0087, Welcome to our community! To help you get the best possible answer, I have tagged in our Kerbero experts @Scharan @vamsi_redd who may be able to assist you further.

Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question.

[#3]

@albert0087 Are you using OpenTSDB's asynchbase client to try to connect to our hbase? If yes, make sure you are setting the configurations correctly as per https://opentsdb.github.io/asynchbase/docs/build/html/authentication.html

[#4]

hello,
i am new here from india, here to share some thoughts with you all