Cloudera Docs

Usage

The zk-migrator tool is invoked as ./bin/zk-migrator.sh or bin\zk-migrator.bat.

To show help:


./bin/zk-migrator.sh -h

The following are available options:

  • -a,--auth <username:password> Allows the specification of a username and password for authentication with ZooKeeper. This option is mutually exclusive with the -k,--krb-conf option.

  • -f,--file <filename> The file used for ZooKeeper data serialized as JSON. When used with the -r,--receive option, data read from ZooKeeper will be stored in the given filename. When used with the -s,--send option, the data in the file will be sent to ZooKeeper.

  • -h,--help Prints help, displays available parameters with descriptions

  • --ignore-source Allows the ZooKeeper Migrator to write to the ZooKeeper and path from which the data was obtained.

  • -k,--krb-conf <jaas-filename> Allows the specification of a JAAS configuration file to allow authentication with a ZooKeeper configured to use Kerberos. This option is mutually exclusive with the -a,--auth option.

  • -r,--receive Receives data from ZooKeeper and writes to the given filename (if the -f,--file option is provided) or standard output. The data received will contain the full path to each node read from ZooKeeper. This option is mutually exclusive with the -s,--send option.

  • -s,--send Sends data to ZooKeeper that is read from the given filename (if the -f,--file option is provided) or standard input. The paths for each node in the data being sent to ZooKeeper are absolute paths, and will be stored in ZooKeeper under the path portion of the -z,--zookeeper argument. Typically, the path portion of the argument can be omitted, which will store the nodes at their absolute paths. This option is mutually exclusive with the -r,--receive option.

  • --use-existing-acl Allows the ZooKeeper Migrator to write ACL values retrieved from the source ZooKeeper server to destination server. Default action will apply Open rights for unsecured destinations or Creator Only rights for secured destinations.

  • -z,--zookeeper <zookeeper-endpoint> The ZooKeeper server(s) to use, specified by a connect string, comprised of one or more comma-separated host:port pairs followed by a path, in the format of host:port[,host2:port…​,hostn:port]/znode/path.