Hadoop 启动脚本

执行脚本时需传入一个参数

参数为：start、stop、restart、status

• start：启动 hadoop 所有服务
• stop：关闭 hadoop 所有服务
• restart：重启 hadoop 所有服务
• status：查看 hadoop 所有服务状态

#!/bin/bash 
HADOOP_SBIN="/opt/hadoop/sbin"
case $1 instart)$HADOOP_SBIN/start-dfs.sh$HADOOP_SBIN/start-yarn.sh$HADOOP_SBIN/mr-jobhistory-daemon.sh start historyserverecho "the hadoop is ok";;stop)$HADOOP_SBIN/mr-jobhistory-daemon.sh stop historyserver$HADOOP_SBIN/stop-yarn.sh$HADOOP_SBIN/stop-dfs.shecho "the hadoop  is stop";;restart|reload|force-reload)$HADOOP_SBIN/mr-jobhistory-daemon.sh stop historyserver$HADOOP_SBIN/stop-yarn.sh$HADOOP_SBIN/stop-dfs.shecho "the hadoop  is stop"sleep 3$HADOOP_SBIN/start-dfs.sh$HADOOP_SBIN/start-yarn.sh$HADOOP_SBIN/mr-jobhistory-daemon.sh start historyserverecho "the hadoop is ok";;status)jps;;*) echo "$0 {start|stop|restart|status}"exit 4;;
esac

启动 hive metastore 和 hiveserver2 服务脚本

执行脚本时需传入一个参数

参数为：start、stop、restart、status

• start：启动 metastore 和 hiveserver2 服务
• stop：关闭 metastore 和 hiveserver2 服务
• restart：重启 metastore 和 hiveserver2 服务
• status：查看 metastore 和 hiveserver2 服务状态

#!/bin/bash
HIVE_LOG_DIR=$HIVE_HOME/logsmkdir -p $HIVE_LOG_DIR#检查进程是否运行正常，参数1为进程名，参数2为进程端口
function check_process()
{pid=$(ps -ef 2>/dev/null | grep -v grep | grep -i $1 | awk '{print $2}')ppid=$(netstat -nltp 2>/dev/null | grep $2 | awk '{print $7}' | cut -d '/' -f 1)echo $pid[[ "$pid" =~ "$ppid" ]] && [ "$ppid" ] && return 0 || return 1
}function hive_start()
{metapid=$(check_process HiveMetastore 9083)cmd="nohup hive --service metastore >$HIVE_LOG_DIR/metastore.log 2>&1 &"cmd=$cmd" sleep 4; hdfs dfsadmin -safemode wait >/dev/null 2>&1"[ -z "$metapid" ] && eval $cmd || echo "Metastroe服务已启动"server2pid=$(check_process HiveServer2 10000)cmd="nohup hive --service hiveserver2 >$HIVE_LOG_DIR/hiveServer2.log 2>&1 &"[ -z "$server2pid" ] && eval $cmd || echo "HiveServer2服务已启动"
}function hive_stop()
{metapid=$(check_process HiveMetastore 9083)[ "$metapid" ] && kill $metapid || echo "Metastore服务未启动"server2pid=$(check_process HiveServer2 10000)[ "$server2pid" ] && kill $server2pid || echo "HiveServer2服务未启动"
}
case $1 in
"start")hive_start;;
"stop")hive_stop;;
"restart")hive_stopsleep 2hive_start;;
"status")check_process HiveMetastore 9083 >/dev/null && echo "Metastore服务运行正常" || echo "Metastore服务运行异常"check_process HiveServer2 10000 >/dev/null && echo "HiveServer2服务运行正常" || echo "HiveServer2服务运行异常";;
*)echo Invalid Args!echo 'Usage: '$(basename $0)' start|stop|restart|status';;
esac