- Documentation Library
- Table of Contents
- MySQL 5.5 Manual
- MySQL 5.4 Manual
- MySQL 5.1 Manual
- MySQL 5.0 Manual
- MySQL 3.23/4.0/4.1 Manual
- Table of Contents
- 15.4 MySQL Cluster Programs
- 15.4.1 MySQL Server Usage for MySQL Cluster
- 15.4.2 ndbd — The MySQL Cluster Data Node Daemon
- 15.4.3 ndb_mgmd — The MySQL Cluster Management Server Daemon
- 15.4.4 ndb_mgm — The MySQL Cluster Management Client
- 15.4.5 ndb_config — Extract MySQL Cluster Configuration Information
- 15.4.6 ndb_cpcd — Automate Testing for NDB Development
- 15.4.7 ndb_delete_all — Delete All Rows from an NDB Table
- 15.4.8 ndb_desc — Describe NDB Tables
- 15.4.9 ndb_drop_index — Drop Index from an NDB Table
- 15.4.10 ndb_drop_table — Drop an NDB Table
- 15.4.11 ndb_error_reporter — NDB Error-Reporting Utility
- 15.4.12 ndb_print_backup_file — Print NDB Backup File Contents
- 15.4.13 ndb_print_schema_file — Print NDB Schema File Contents
- 15.4.14 ndb_print_sys_file — Print NDB System File Contents
- 15.4.15 ndb_restore — Restore a MySQL Cluster Backup
- 15.4.16 ndb_select_all — Print Rows from an NDB Table
- 15.4.17 ndb_select_count — Print Row Counts for NDB Tables
- 15.4.18 ndb_show_tables — Display List of NDB Tables
- 15.4.19 ndb_size.pl — NDBCLUSTER Size Requirement Estimator
- 15.4.20 ndb_waiter — Wait for MySQL Cluster to Reach a Given Status
- 15.4.21 Options Common to MySQL Cluster Programs
The ndb_mgm management client process is actually not needed to run the cluster. Its value lies in providing a set of commands for checking the cluster's status, starting backups, and performing other administrative functions. The management client accesses the management server using a C API. Advanced users can also employ this API for programming dedicated management processes to perform tasks similar to those performed by ndb_mgm.
To start the management client, it is necessary to supply the host name and port number of the management server:
shell> ndb_mgm [host_name [port_num]]
For example:
shell> ndb_mgm ndb_mgmd.mysql.com 1186
The default host name and port number are
localhost and 1186, respectively. (Prior to
MySQL 4.1.8, the default Cluster port was 2200.)
The following table includes command options specific to the MySQL Cluster management client program ndb_mgm. Additional descriptions follow the table. For options common to all MySQL Cluster programs, see Section 15.4.21, “Options Common to MySQL Cluster Programs”.
Table 15.11. ndb_mgm Command Line Options
| Format | Description | Introduction | Deprecated | Removed |
|---|---|---|---|---|
| --try-reconnect=# | Specify number of tries for connecting to ndb_mgmd (0 = infinite) |
-
Command-Line Format --try-reconnect=#Permitted Values Type booleanDefault TRUEIf the connection to the management server is broken, the node tries to reconnect to it every 5 seconds until it succeeds. By using this option, it is possible to limit the number of attempts to
numberbefore giving up and reporting an error instead.
Additional information about using ndb_mgm can be found in Section 15.5.2, “Commands in the MySQL Cluster Management Client”.
User Comments
Add your own comment.