查看zookeeper执行事务

有时候，我们会需要追溯zookeeper在某个时间点执行的事务日志，这个时候，我们可以通过zkTxnLogToolkit.sh查看zookeeper的事务日志，先通过如下代码来向zookeeper写入数据

@Log4j2
public class ZooKeeperWriteDataDemo {

    public static void main(String[] args) throws Exception {
        ZooKeeper zooKeeper = new ZooKeeper("localhost:2181", 30_000, null);
        zooKeeper.create("/zk-test", "hello".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        Stat stat = zooKeeper.setData("/zk-test", "world".getBytes(), -1);
        byte[] zooKeeperData = zooKeeper.getData("/zk-test", false, stat);
        log.info("zookeeper data len is {}", zooKeeperData);
        zooKeeper.close();
    }

}

使用./bin/zkTxnLogToolkit.sh脚本，执行如下命令行

bin/zkTxnLogToolkit.sh -v data/version-2/log.1

即可输出如下时间点的操作

10/21/22, 6:41:51 AM UTC session 0x10003415e890000 cxid 0x0 zxid 0x1 createSession 30000
10/21/22, 6:41:51 AM UTC session 0x10003415e890000 cxid 0x1 zxid 0x2 create /zk-test,hello,[31,s{'world,'anyone}
],false,1
10/21/22, 6:41:51 AM UTC session 0x10003415e890000 cxid 0x2 zxid 0x3 setData /zk-test,world,