问题描述
Exception in thread "main" org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=36, exceptions:
Thu Mar 01 17:43:32 CST 2018, null, java.net.SocketTimeoutException: callTimeout=60000, callDuration=69098: row 'student,,00000000000000' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=dongjingnan,16201,1519896617441, seqNum=0
at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.throwEnrichedException(RpcRetryingCallerWithReadReplicas.java:276)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:210)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:60)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:210)
at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:327)
at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:302)
at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:167)
at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:162)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:797)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:193)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:89)
at org.apache.hadoop.hbase.client.MetaScanner.allTableRegions(MetaScanner.java:324)
at org.apache.hadoop.hbase.client.HRegionLocator.getAllRegionLocations(HRegionLocator.java:89)
at org.apache.hadoop.hbase.util.RegionSizeCalculator.init(RegionSizeCalculator.java:94)
at org.apache.hadoop.hbase.util.RegionSizeCalculator.<init>(RegionSizeCalculator.java:81)
at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.getSplits(TableInputFormatBase.java:256)
at org.apache.hadoop.hbase.mapreduce.TableInputFormat.getSplits(TableInputFormat.java:239)
at org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:125)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:252)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:250)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:250)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1958)
at org.apache.spark.rdd.RDD.count(RDD.scala:1157)
at SparkOperateHBase$.main(SparkOperateHBase.scala:20)
at SparkOperateHBase.main(SparkOperateHBase.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:738)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:187)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:212)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:126)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.SocketTimeoutException: callTimeout=60000, callDuration=69098: row 'student,,00000000000000' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=dongjingnan,16201,1519896617441, seqNum=0
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:169)
at org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture.run(ResultBoundedCompletionService.java:65)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: com.google.protobuf.ServiceException: java.lang.NoClassDefFoundError: com/yammer/metrics/core/Gauge
at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:332)
at org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:408)
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:204)
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:65)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:210)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call(ScannerCallableWithReplicas.java:364)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call(ScannerCallableWithReplicas.java:338)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:136)
... 4 more
Caused by: com.google.protobuf.ServiceException: java.lang.NoClassDefFoundError: com/yammer/metrics/core/Gauge
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:240)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:336)
at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:34094)
at org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:400)
... 10 more
Caused by: java.lang.NoClassDefFoundError: com/yammer/metrics/core/Gauge
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:225)
... 13 more
Caused by: java.lang.ClassNotFoundException: com.yammer.metrics.core.Gauge
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 14 more
出现该问题的原因是由于缺少metrics-core-2.2.0.jar，
把HBase的lib目录下的一些jar文件拷贝到Spark中，编程时需要引入的jar包包括如下
所有hbase开头的jar文件
guava-12.0.1.jar
htrace-core-3.1.0-incubating.jar
protobuf-java-2.5.0.jar
metrics-core-2.2.0.jar
~$ cp /usr/local/hbase/lib/hbase-*.jar /usr/local/spark/jars/hbase/
~$ cp /usr/local/hbase/lib/guava-12.0.1.jar /usr/local/spark/jars/hbase/
~$ cp /usr/local/hbase/lib/htrace-core-3.1.0-incubating.jar /usr/local/spark/jars/hbase/
~$ cp /usr/local/hbase/lib/protobuf-java-2.5.0.jar /usr/local/spark/jars/hbase/
~$ cp /usr/local/hbase/lib/metrics-core-2.2.0.jar /usr/local/spark/jars/hbase/
/usr/local/spark/jars/下hbase文件夹是我自己建的，提交的命令如下
/usr/local/spark/bin/spark-submit --driver-class-path /usr/local/spark/jars/hbase/*:/usr/local/hbase/conf --class "此处替换成自己定义的scala对象名" /usr/local/spark/mycode/hbase/target/scala-2.11/simple-project_2.11-1.0.jar