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NDB_MGMD(1)


NAME

  ndb_mgmd - the management server process


SYNOPSIS

  ndb_mgmd options


DESCRIPTION

  The management server is the process that reads the cluster configuration
  file and distributes this information to all nodes in the cluster that
  request it. It also maintains a log of cluster activities. Management
  clients can connect to the management server and check the cluster's
  status.

  It is not strictly necessary to specify a connectstring when starting the
  management server. However, if you are using more than one management
  server, a connectstring should be provided and each node in the cluster
  should specify its node ID explicitly.

  See Section 4.4.2, The Cluster connectstring, for information about using
  connectstrings.  Section 6.2, Command Options for MySQL Cluster Processes,
  describes other options for ndb_mgmd.

  The following files are created or used by ndb_mgmd in its starting
  directory, and are placed in the DataDir as specified in the config.ini
  configuration file. In the list that follows, node_id is the unique node
  identifier.

  ·  config.ini is the configuration file for the cluster as a whole. This
     file is created by the user and read by the management server.
     Section 4, MySQL Cluster Configuration, discusses how to set up this
     file.

  ·  ndb_node_id_cluster.log is the cluster events log file. Examples of such
     events include checkpoint startup and completion, node startup events,
     node failures, and levels of memory usage. A complete listing of cluster
     events with descriptions may be found in Section 7, Management of MySQL
     Cluster.

     When the size of the cluster log reaches one million bytes, the file is
     renamed to ndb_node_id_cluster.log.seq_id, where seq_id is the sequence
     number of the cluster log file. (For example: If files with the sequence
     numbers 1, 2, and 3 already exist, the next log file is named using the
     number 4.)

  ·  ndb_node_id_out.log is the file used for stdout and stderr when running
     the management server as a daemon.

  ·  ndb_node_id.pid is the process ID file used when running the management
     server as a daemon.


COPYRIGHT

  Copyright 1997-2007 MySQL AB

  This documentation is NOT distributed under a GPL license. Use of this
  documentation is subject to the following terms: You may create a printed
  copy of this documentation solely for your own personal use. Conversion to
  other formats is allowed as long as the actual content is not altered or
  edited in any way. You shall not publish or distribute this documentation
  in any form or on any media, except if you distribute the documentation in
  a manner similar to how MySQL disseminates it (that is, electronically for
  download on a Web site with the software) or on a CD-ROM or similar medium,
  provided however that the documentation is disseminated together with the
  software on the same medium. Any other use, such as any dissemination of
  printed copies or use of this documentation, in whole or in part, in
  another publication, requires the prior written consent from an authorized
  representative of MySQL AB. MySQL AB reserves any and all rights to this
  documentation not expressly granted above.

  Please email <docs@mysql.com> for more information.


SEE ALSO

  make_win_bin_dist(1), msql2mysql(1), my_print_defaults(1),
  myisam_ftdump(1), myisamchk(1), myisamlog(1), myisampack(1), mysql(1),
  mysql.server(1), mysql_config(1), mysql_explain_log(1),
  mysql_fix_privilege_tables(1), mysql_install_db(1), mysql_tzinfo_to_sql(1),
  mysql_upgrade(1), mysql_zap(1), mysqlaccess(1), mysqladmin(1),
  mysqlbinlog(1), mysqlcheck(1), mysqld(8), mysqld_multi(1), mysqld_safe(1),
  mysqldump(1), mysqlhotcopy(1), mysqlimport(1), mysqlmanager(8),
  mysqlshow(1), ndb_config(1), ndb_cpcd(1), ndb_delete_all(1), ndb_desc(1),
  ndb_drop_index(1), ndb_drop_table(1), ndb_error_reporter(1), ndb_mgm(1),
  ndb_print_backup_file(1), ndb_print_schema_file(1), ndb_print_sys_file(1),
  ndb_restore(1), ndb_select_all(1), ndb_select_count(1), ndb_show_tables(1),
  ndb_size.pl(1), ndb_waiter(1), ndbd(1), perror(1), replace(1),
  safe_mysqld(1)

  For more information, please refer to the MySQL Reference Manual, which may
  already be installed locally and which is also available online at
  http://dev.mysql.com/doc/.


AUTHOR

  MySQL AB (http://www.mysql.com/).  This software comes with no warranty.

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