Package org.apache.zookeeper.server.admin

Class Commands.LastSnapshotCommand

  • All Implemented Interfaces:
    Command
    Enclosing class:
    Commands
    public static class Commands.LastSnapshotCommand
extends CommandBase
    Command returns information of the last snapshot that zookeeper server has finished saving to disk. During the time between the server starts up and it finishes saving its first snapshot, the command returns the zxid and last modified time of the snapshot file used for restoration at server startup. Returned map contains: - "zxid": String - "timestamp": Long

    • Constructor Detail

      • LastSnapshotCommand

        public LastSnapshotCommand()

    • Method Detail

      • run

        public CommandResponse run​(ZooKeeperServer zkServer,
                           Map<String,​String> kwargs)
        Description copied from interface: Command
        Run this command. Commands take a ZooKeeperServer and String-valued keyword arguments and return a map containing any information constituting the response to the command. Commands are responsible for parsing keyword arguments and performing any error handling if necessary. Errors should be reported by setting the "error" entry of the returned map with an appropriate message rather than throwing an exception.
        kwargs - keyword -> argument value mapping
        Returns:
        Map representing response to command containing at minimum: - "command" key containing the command's primary name - "error" key containing a String error message or null if no error