• 解决办法

原来ha的namenode 爆红了，于是把集群的namenode ha先去掉了，随后该问题就搞定了，后面又把ha加上去，ha也不报错了。

• 报错信息如下（里面有namenode.ha相关的报错）

Exception in thread "main" java.io.IOException: java.lang.reflect.InvocationTargetException
    at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:240)
    at org.apache.hadoop.hbase.client.ConnectionManager.createConnection(ConnectionManager.java:410)
    at org.apache.hadoop.hbase.client.ConnectionManager.createConnection(ConnectionManager.java:403)
    at org.apache.hadoop.hbase.client.ConnectionManager.getConnectionInternal(ConnectionManager.java:281)
    at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:178)
    at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:144)
    at LianJieHbase$.main(LianJieHbase.scala:18)
    at LianJieHbase.main(LianJieHbase.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:238)
    ... 12 more
Caused by: java.lang.AbstractMethodError: org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider.getProxy()Lorg/apache/hadoop/io/retry/FailoverProxyProvider$ProxyInfo;
    at org.apache.hadoop.io.retry.RetryInvocationHandler.<init>(RetryInvocationHandler.java:73)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.<init>(RetryInvocationHandler.java:64)
    at org.apache.hadoop.io.retry.RetryProxy.create(RetryProxy.java:58)
    at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:147)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:510)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:453)
    at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:136)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2591)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89)
    at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2625)
    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2607)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368)
    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
    at org.apache.hadoop.hbase.util.DynamicClassLoader.<init>(DynamicClassLoader.java:104)
    at org.apache.hadoop.hbase.protobuf.ProtobufUtil.<clinit>(ProtobufUtil.java:229)
    at org.apache.hadoop.hbase.ClusterId.parseFrom(ClusterId.java:64)
    at org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(ZKClusterId.java:75)
    at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(ZooKeeperRegistry.java:86)
    at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.retrieveClusterId(ConnectionManager.java:833)
    at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.<init>(ConnectionManager.java:623)
    ... 17 more