定时清除Zookeeper日志

定时清除Zookeeper日志

命令格式：

java -cp zookeeper.jar:log4j.jar:conf org.apache.zookeeper.server.PurgeTxnLog <dataDir> <snapDir> -n <count>

举例：

java -cp zookeeper.jar:log4j.jar:conf org.apache.zookeeper.server.PurgeTxnLog /log/xres/zookeeper/zk_trlog /www/xres/app/zk_data -n 10

定时清除zookeeper日志和快照数据非常简单，只需简单3步。

Step1：在zookeeper/bin目录建立purgeTxnLog.sh文件，内容如下所示：

#!/bin/sh

# Only follow symlinks if readlink supports it
if readlink -f "$0" > /dev/null 2>&1
then
  ZOOBIN=`readlink -f "$0"`
else
  ZOOBIN="$0"
fi
ZOOBINDIR=`dirname "$ZOOBIN"`

. "$ZOOBINDIR"/zkEnv.sh

#echo "Purge transaction log is starting..."
PATH="/usr/local/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/java/jdk1.6.0_21/bin:/usr/java/jdk1.6.0_21/jre/bin:/bin:/home/smdev/bin:$PATH"
export PATH
#echo "PATH=$PATH"
#echo "CLASSPATH=$CLASSPATH"

java -cp "$CLASSPATH" org.apache.zookeeper.server.PurgeTxnLog /log/xres/zookeeper/zk_trlog /www/xres/app/zk_data -n 10

#echo "Purge transaction log is finished."

 Step2：创建cron任务。

[smdev@M12-131 bin]$ crontab –e

 任务内容如下： 

0 */1 * * * sh /www/xres/app/zookeeper-3.3.3/bin/purgeTxnLog.sh >> /log/xres/zookeeper/log/purgeTxnLog.log

Step3 ：启动服务

[smdev@M12-131 bin]$service crond start

到此为止，定时清除zookeeper日志和快照数据的全部工作已完成。