问题：
修改hbase的配置文件hbase-env.sh，hbase-site.xml后，启动hbase集群，slave2启动异常，查看日志时报如下错误：

regionserver.HRegionServer: reportForDuty to master=master,16000,1535782912381 with port=16020, startcode=1535782914403
2018-09-01 14:27:06,028 WARN [regionserver/localhost/127.0.0.1:16020] regionserver.HRegionServer: error telling master we are up
com.google.protobuf.ServiceException: java.net.SocketException: Invalid argument
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:240)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:336)
at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:8982)
at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2316)
at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:907)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketException: Invalid argument
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:454)
at sun.nio.ch.Net.connect(Net.java:446)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)

原因：
报错提示

com.google.protobuf.ServiceException: java.net.SocketException: Invalid argument
at

Invalid argument，应该是配置文件写错了，
解决办法：
检查刚更改的配置文件，比如我的hbase-env.sh，hbase-site.xml。删除了添加的注释，重启hdfs，zookeeper，hbase。还是报错，推荐重启主机