inotify監控檔案變化執行腳本。

1.檢視是否支援inotify

ls -l /proc/sys/fs/inotify/
           

2.檢查是否安裝

rpm -qa inotify-tools
           

3.安裝epol源

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
           

4.檢查是否安裝epel源

ll /etc/yum.repos.d/epel.repo
           

若沒安裝，執行下面指令下載下傳到本地

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
           

5.安裝指令

yum install inotify-tools -y
           

離線安裝：

wget http://downloads.sourceforge.net/inotify-tools/inotify-tools-3.13.tar.gz
tar zxvf inotify-tools-3.13.tar.gz
cd inotify-tools-3.13
./configure --prefix=/usr/local/inotify
make
make install
           

6.監控路徑/home/kenick/logs下的ymhc_purchaseorder.*xlsx，星号為通配符号，如果有檔案建立或修改，就執行另一個腳本test.sh（列印資訊）。

#/bin/bash
################################################################
#  automatically run a script(action.sh) when the contents
#     of a directory (${EVENTPATH}) changed.
#  pls. install the inotify-tools-3.13-1.el4.rf.i386.rpm module
#       before use this scripts
#  Aborn Jiang ([email protected])
#  Sep.8, 2013
################################################################

EVENTPATH="/home/kenick/logs"
MSG="inotify.log"
PATTERN="ymhc_purchaseorder.*xlsx"         # only when the rpm files changed.
while /usr/local/inotify/bin/inotifywait -e modify -e create -e move \
                   ${EVENTPATH} 1>${EVENTPATH}/${MSG} 2>/dev/null;
do
        FILE=`cat $EVENTPATH/${MSG} |egrep ${PATTERN} | awk '{print $3}' `
        ACTION=`cat $EVENTPATH/${MSG} |egrep ${PATTERN} | awk '{print $2}' `
        [ ! -z ${FILE} ] && \
        echo "in the directory ${EVENTPATH}, the file: ${FILE} modified,  action:${ACTION} " && \
        ./test.sh
done
           

測試：

6.1.先執行該腳本

生産環境注意使用nohup方式執行

nohup inotify.sh &
           

6.2.在對應路徑下複制符合ymhc_purchaseorder.*xlsx規則的檔案。

6.3.當路徑下檔案發生變化後，列印了相關資訊和執行了test.sh腳本。

7.叢集伺服器檔案同步

  叢集伺服器中的每一個節點，都有可能在指定路徑下産生特定檔案，需要及時的把該檔案同步到其它節點上。

注意事項：a、由于同步檔案到其它節點上，也會觸發inotify監控，要防止重複傳播；b、有時同步可能耗時較長，監控和同步檔案要分開來做 b、注意監控最好設定一個間隔，不要消耗過多的伺服器資源。

監控腳本如下:

#/bin/bash
################################################################
#  automatically run a script(action.sh) when the contents
#     of a directory (${EVENTPATH}) changed.
#  pls. install the inotify-tools-3.13-1.el4.rf.i386.rpm module
#       before use this scripts
#  Aborn Jiang ([email protected])
#  Sep.8, 2013
################################################################
 
EVENTPATH="/home/order/app/files"
MSG=".inotify"
DATA_MSG="inotify_purchaseorder.log"
PATTERN="ymhc_purchaseorder.*xlsx"
DIR_PATH="/home/order/app/files/"
HOST_ARRAY=(xxx.xxx.xxx.xxx:22 xxx.xxx.xxx.xxx:22)
PID=$$
while /usr/local/inotify/bin/inotifywait -e create \
                   ${EVENTPATH} 1>${EVENTPATH}/${MSG} 2>/dev/null;
do
    FILE=`cat $EVENTPATH/${MSG} |egrep ${PATTERN} | awk '{print $3}' `
    ACTION=`cat $EVENTPATH/${MSG} |egrep ${PATTERN} | awk '{print $2}' `
	time=$(date "+%Y-%m-%d %H:%M:%S")
	FILE_NAME="${EVENTPATH}/${FILE:5}"
    if [ ! -z ${FILE} ];then
	  flagFile="${EVENTPATH}/.inotify.${FILE}"
      # file not exist
      if [ ! -f "$flagFile" ]; then
        echo $$ >> ${flagFile}
        echo "${time} pid:${PID} ${FILE_NAME} changed,action:${ACTION}" >> ${EVENTPATH}/${DATA_MSG}
        #execute sync
	    for HOST in ${HOST_ARRAY[@]}
	      do
            ./lftp_upload.sh ${HOST} ${DIR_PATH} ${flagFile}
            ./lftp_upload.sh ${HOST} ${DIR_PATH} ${FILE_NAME} &
	      done
	  fi
    fi
	sleep 1
done
           

lftp傳輸檔案腳本如下

#/bin/bash
time=$(date "+%Y-%m-%d %H:%M:%S")
DIR_PATH="/home/order/app/files/"
log="/home/order/app/files/inotify_purchaseorder.log"
HOST=$1
DIR_PATH=$2
FILE_NAME=$3
PID=$$
echo "${time} ${PID} start upload ${FILE_NAME} to ${HOST}" >> ${log}
lftp -u 使用者名,密碼 sftp://${HOST} << EOM
cd $DIR_PATH
put ${FILE_NAME}
bye
EOM
echo "${time} ${PID} start upload ${FILE_NAME} to ${HOST} end!" >> ${log}