我正在尝试将一些数据放入kudu，但是工作者找不到kerberos令牌，所以我无法将一些数据放入kudu数据库。
在这里你可以看到我的spark2-submit语句
spark2-submit --master yarn "spark.yarn.maxAppAttempts=1" --conf "spark.authenticate=true" --deploy-mode cluster --properties-file ./custom.properties --keytab /home/stream_ingest/stream_ingest.keytab --principal xxx@xxx --class app.test.Task
例外情况如下：
18/06/08 08:33:02 INFO client.ConnectToCluster: Unable to connect to master xxx:7051: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available
18/06/08 08:33:02 INFO client.ConnectToCluster: Unable to connect to master xxx:7051: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available
18/06/08 08:33:02 INFO client.ConnectToCluster: Unable to connect to master xxx:7051: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available
ERROR: exception occured during an insert to kudu, sending record ConsumerRecord(topic = custom, partition = 0, offset = 120, CreateTime = 1528444250889, checksum = 3907376269, serialized key size = -1, serialized value size = 1067790, key = null, value = [B@1623bffa) to error topic custom
org.apache.kudu.client.NonRecoverableException: Couldn't find a valid master in (xxx:7051,xxx:7051,xxx:7051). Exceptions received: [org.apache.kudu.client.NonRecoverableException: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available, org.apache.kudu.client.NonRecoverableException: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available, org.apache.kudu.client.NonRecoverableException: server requires authentication, but client does not have Kerberos credentials (tgt). Authentication tokens were not used because no token is available]
at org.apache.kudu.client.KuduException.transformException(KuduException.java:110)
at org.apache.kudu.client.KuduClient.joinAndHandleException(KuduClient.java:352)
at org.apache.kudu.client.KuduClient.openTable(KuduClient.java:222)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at org.apache.spark.api.java.JavaRDDLike$$anonfun$foreachPartition$1.apply(JavaRDDLike.scala:219)
at org.apache.spark.api.java.JavaRDDLike$$anonfun$foreachPartition$1.apply(JavaRDDLike.scala:219)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$29.apply(RDD.scala:926)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$29.apply(RDD.scala:926)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2064)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2064)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87)
at org.apache.spark.scheduler.Task.run(Task.scala:108)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:338)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Suppressed: org.apache.kudu.client.KuduException$OriginalException: Original asynchronous stack trace
at org.apache.kudu.client.ConnectToCluster.incrementCountAndCheckExhausted(ConnectToCluster.java:246)
at org.apache.kudu.client.ConnectToCluster.access$100(ConnectToCluster.java:49)
at org.apache.kudu.client.ConnectToCluster$ConnectToMasterErrCB.call(ConnectToCluster.java:365)
at org.apache.kudu.client.ConnectToCluster$ConnectToMasterErrCB.call(ConnectToCluster.java:354)
at com.stumbleupon.async.Deferred.doCall(Deferred.java:1280)
at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1259)
at com.stumbleupon.async.Deferred.handleContinuation(Deferred.java:1315)
at com.stumbleupon.async.Deferred.doCall(Deferred.java:1286)
at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1259)
at com.stumbleupon.async.Deferred.callback(Deferred.java:1002)
at org.apache.kudu.client.KuduRpc.handleCallback(KuduRpc.java:246)
at org.apache.kudu.client.KuduRpc.errback(KuduRpc.java:300)
at org.apache.kudu.client.RpcProxy.responseReceived(RpcProxy.java:221)
at org.apache.kudu.client.RpcProxy.access$000(RpcProxy.java:60)
at org.apache.kudu.client.RpcProxy$1.call(RpcProxy.java:132)
at org.apache.kudu.client.RpcProxy$1.call(RpcProxy.java:128)
at org.apache.kudu.client.Connection.cleanup(Connection.java:715)
at org.apache.kudu.client.Connection.exceptionCaught(Connection.java:460)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at org.apache.kudu.client.Connection.handleUpstream(Connection.java:244)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.exceptionCaught(SimpleChannelUpstreamHandler.java:153)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.exceptionCaught(SimpleChannelUpstreamHandler.java:153)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:60)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
at org.apache.kudu.shaded.org.jboss.netty.channel.Channels.fireExceptionCaught(Channels.java:525)
at org.apache.kudu.shaded.org.jboss.netty.channel.AbstractChannelSink.exceptionCaught(AbstractChannelSink.java:48)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.notifyHandlerException(DefaultChannelPipeline.java:658)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:566)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.handler.timeout.ReadTimeoutHandler.messageReceived(ReadTimeoutHandler.java:184)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:70)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.apache.kudu.shaded.org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
at org.apache.kudu.shaded.org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
at org.apache.kudu.shaded.org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.apache.kudu.shaded.org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
at org.apache.kudu.shaded.org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
at org.apache.kudu.shaded.org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
at org.apache.kudu.shaded.org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
at org.apache.kudu.shaded.org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at org.apache.kudu.shaded.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
at org.apache.kudu.shaded.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
at org.apache.kudu.shaded.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
at org.apache.kudu.shaded.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at org.apache.kudu.shaded.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
... 3 more
看起来kudu客户端找不到keytab文件。在他们提到的kudu文档中，您只需指定 keytab 和 principal 参数。
如果在驱动程序中的KuduClient上执行openTable，一切正常。