背景和原因分析
hiveserver2配置prometheus需要使用到-javaagent:/cluster/hive/jmx-exporter/jmx_prometheus_javaagent-0.12.0.jar=28054:/cluster/hive/jmx-exporter/hiveserver2-agent.yaml
如果在HADOOP_OPTS或者HADOOP_CLIENT_OPTS配置javaagent，则hiveserver2在启动mapred时候同样会使用HADOOP_OPTS或者HADOOP_CLIENT_OPTS，就会导致hiveserver2的端口和mapred都启动javaaagent，他们又使用了相同的端口，hiveserver2先启动的就占用了此端口，mapred启动后无法使用端口就报了端口冲突错误。
Hiveservers2是在hadoop命令中启动，传递环境变量（HADOOP_OPTS,HADOOP_CLIENT_OPTS）会传递给mapred程序，导致和已有的端口冲突。
hiveserver2其他引擎spark、tez不会使用HADOOP_OPTS,HADOOP_CLIENT_OPTS启动计算任务，因此不会引发这个问题。
日志
hivesever2报错日志：
MapReduce Total cumulative CPU time: 5 seconds 990 msec
Ended Job = job_xxxxxxxxxx
java.lang.reflect.InvocationTargetException 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 sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
Caused by: java.net.BindException: Address already in useat sun.nio.ch.Net.bind0(Native Method)at sun.nio.ch.Net.bind(Net.java:433)at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)at sun.net.httpserver.HttpServerImpl.bind(HttpServerImpl.java:54)at io.prometheus.jmx.shaded.io.prometheus.client.exporter.HTTPServer.<init>(HTTPServer.java:145)at io.prometheus.jmx.shaded.io.prometheus.jmx.JavaAgent.premain(JavaAgent.java:31)... 6 more
Execution failed with exit status: 134
Obtaining error information
beeline报错如下：
ERROR : Execution failed with exit status: 134
ERROR : Obtaining error information
ERROR :
Task failed!
Task ID:Stage-5Logs:ERROR : /var/de_log/hive/hiveserver2.log
ERROR : FAILED: Execution Error, return code 134 from org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask