- 17.4 MySQL Cluster Programs
- 17.4.1 ndbd — The MySQL Cluster Data Node Daemon
- 17.4.2 ndb_mgmd — The MySQL Cluster Management Server Daemon
- 17.4.3 ndb_mgm — The MySQL Cluster Management Client
- 17.4.4 ndb_config — Extract MySQL Cluster Configuration Information
- 17.4.5 ndb_cpcd — Automate Testing for NDB Development
- 17.4.6 ndb_delete_all — Delete All Rows from an NDB Table
- 17.4.7 ndb_desc — Describe NDB Tables
- 17.4.8 ndb_drop_index — Drop Index from an NDB Table
- 17.4.9 ndb_drop_table — Drop an NDB Table
- 17.4.10 ndb_error_reporter — NDB Error-Reporting Utility
- 17.4.11 ndb_print_backup_file — Print NDB Backup File Contents
- 17.4.12 ndb_print_schema_file — Print NDB Schema File Contents
- 17.4.13 ndb_print_sys_file — Print NDB System File Contents
- 17.4.14 ndb_restore — Restore a MySQL Cluster Backup
- 17.4.15 ndb_select_all — Print Rows from an NDB Table
- 17.4.16 ndb_select_count — Print Row Counts for NDB Tables
- 17.4.17 ndb_show_tables — Display List of NDB Tables
- 17.4.18 ndb_size.pl — NDBCLUSTER Size Requirement Estimator
- 17.4.19 ndb_waiter — Wait for MySQL Cluster to Reach a Given Status
- 17.4.20 Options Common to MySQL Cluster Programs — Options Common to MySQL Cluster Programs
This is a Perl script that can be used to estimate the amount of
space that would be required by a MySQL database if it were
converted to use the NDBCLUSTER
storage engine. Unlike the other utilities discussed in this
section, it does not require access to a MySQL Cluster (in fact,
there is no reason for it to do so). However, it does need to
access the MySQL server on which the database to be tested
resides.
Requirements
A running MySQL server. The server instance does not have to provide support for MySQL Cluster.
A working installation of Perl.
The
DBIandHTML::Templatemodules, both of which can be obtained from CPAN if they are not already part of your Perl installation. (Many Linux and other operating system distributions provide their own packages for one or both of these libraries.)The
ndb_size.tmpltemplate file, which you should be able to find in theshare/mysqldirectory of your MySQL installation. This file should be copied or moved into the same directory asndb_size.pl—if it is not there already—before running the script.A MySQL user account having the necessary privileges. If you do not wish to use an existing account, then creating one using
GRANT USAGE ON—wheredb_name.*db_nameis the name of the database to be examined—is sufficient for this purpose.
ndb_size.pl and
ndb_size.tmpl can also be found in the
MySQL sources in storage/ndb/tools.
Usage
perl ndb_size.pldb_namehostnameusernamepassword>file_name.html
The command shown connects to the MySQL server at
hostname using the account of the
user username having the password
password, analyzes all of the tables
in database db_name, and generates a
report in HTML format which is directed to the file
file_name.htmlstdout.)
The output from this script includes the following information:
Minimum values for the
DataMemory,IndexMemory,MaxNoOfTables,MaxNoOfAttributes,MaxNoOfOrderedIndexes,MaxNoOfUniqueHashIndexes, andMaxNoOfTriggersconfiguration parameters required to accommodate the tables analyzed.Memory requirements for all of the tables, attributes, ordered indexes, and unique hash indexes defined in the database.
The
IndexMemoryandDataMemoryrequired per table and table row.
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