[大数据]代码解剖之ZooKeeper

闲话少说，直入正题

源码地址?https://github.com/liming495/zookeeper.git

下载后先找启动脚本

zkServer.sh

从启动脚本可以找到一个入口

org.apache.zookeeper.server.quorum.QuorumPeerMain

之后直奔main方法

public static void main(String[] args) {
    QuorumPeerMain main = new QuorumPeerMain();
    try {
        main.initializeAndRun(args);
    } catch (IllegalArgumentException e) {
        LOG.error("Invalid arguments, exiting abnormally", e);
        LOG.info(USAGE);
        System.err.println(USAGE);
        ZKAuditProvider.addServerStartFailureAuditLog();
        ServiceUtils.requestSystemExit(ExitCode.INVALID_INVOCATION.getValue());
    } 
????.
????.
?   .
    LOG.info("Exiting normally");
    ServiceUtils.requestSystemExit(ExitCode.EXECUTION_FINISHED.getValue());
}