StartMoosefs.sh

```
#!/bin/bash

# Set the variables
username="root"
master="192.168.1.211"
metalogger="192.168.1.212"
chunkservers=("192.168.1.3" "192.168.1.5" "192.168.1.214")
umountmachines=("192.168.1.3" "192.168.1.5" "192.168.1.4" )
directory="/mfsdata"

#启动程序的函数 参数： start_service IP 服务名称
start_service() {
  starthostname=$1
  service=$2
  if ssh "${username}@${starthostname}" "systemctl status ${service} | grep -q 'Active: active (running)'";  then 
     echo "Service ${service} is already on!"
     return
  fi

echo "Starting service '${service}' on ${starthostname}..."
  ssh "${username}@${starthostname}" "systemctl start ${service}"
  while ssh "${username}@$1" "systemctl status $2 | grep -q 'Active: inactive'"; do
        echo "Waiting for service '$2' to stop on $1..."
        sleep 1
    done
  echo "service '${service}' on ${starthostname} started!"
}

#挂载函数 参数: mount_directory IP 挂载路径 
mount_directory() {
    local machine="$1"
    local dir="$2"
    #先检查是否已挂载？
    echo "Checking...mount or not ??"
    while ssh "${username}@$machine" "mount | grep -qF '$dir'"; do
         echo "${dir} Already Mounted on ${machine} ...  quit..."
         return
    done
    echo "not mount, start mounting"
    ssh "${username}@${machine}" "mfsmount ${dir} -H ${master}"
    echo "mounted on ${machine}"
    
}

##########################下面是主程序#####################
# 启动 MooseFS Master 节点 192.168.1.211
echo "start MooseFS Master ing..."
start_service "$master" "moosefs-master"

# 启动 MooseFS Metalogger 节点 192.168.1.211
echo "start MooseFS Metalogger  ing..."
start_service "$metalogger" "moosefs-metalogger"

# 启动 MooseFS Chunkserver 节点 192.168.1.3,192.168.1.5,192.168.1.214
echo "start MooseFS chunkservers  ing..."
for chunkserver in "${chunkservers[@]}"; do
    start_service "$chunkserver" "moosefs-chunkserver"
done

# 挂载 MooseFS 文件系统
echo "start mounting..."
for umounthost in "${umountmachines[@]}"; do
    mount_directory "${umounthost}" "${directory}" 
done
```