Advisor loads, checks, and runs rules for the various mk-*-advisor tools.

AdvisorRules is a parent class for advisor rule modules like QueryAdivsorRules.

BinaryLogParser parses binary log files converted to text by mysqlbinlog.

ChangeHandler creates SQL statements for changing rows in a table.

CompareQueryTimes compares query execution times.

CompareResults compares the query result sets.

CompareTableStructs compares CREATE TABLE defs.

CompareWarnings compares query warnings.

CopyRowsInsertSelect implements the copy rows phase of an online schema change.

Daemon daemonizes the caller and handles daemon-related tasks like PID files.

DSNParser parses DSNs and creates connections to MySQL using DBI and DBD::mysql.

DuplicateKeyFinder finds duplicate indexes (keys).

EventAggregator aggregates event values and calculates basic statistics.

EventTimeline aggregates events that are adjacent to each other.

ExecutionThrottle slows program execution if a threshold is exceeded.

ExplainAnalyzer contains utility methods for getting and manipulating EXPLAIN data.

FileIterator make iterators that return filenames.

ForeignKeyIterator iterates from or to a table by its foreign key constraints.

GeneralLogParser parses MySQL general logs.

HTTPProtocolParser parses HTTP traffic from tcpdump files.

IndexUsage tracks index and tables usage of queries.

InnoDBStatusParser parses SHOW INNODB STATUS.

KeySize calculates the size of MySQL indexes (keys).

LogSplitter splits MySQL query logs by sessions.

MaatkitTest is a collection of helper-subs for the Maatkit tests.

MasterSlave handles common tasks related to master-slave setups.

MemcachedEvent creates events from MemcachedProtocolParser data.

MemcachedProtocolParser parses memcached events from tcpdump files.

MockSth simulates a DBI statement handle without a database connection.

MockSync simulates a table syncer module.

MockSyncStream simulates a TableSyncStream module.

MySQLConfig parses and encapsulates system variables and values from SHOW VARIABLES, option files, mysqld --help --verbose or my_print_defaults.

MySQLConfigComparer compares and diffs C<MySQLConfig> objects.

MySQLDump gets CREATE TABLE defs from MySQL.

MySQLProtocolParser parses MySQL events from tcpdump files.

OptionParser parses command line options from a tool’s POD.

OSCCaptureSync implements the capture and sync phases of an online schema change.

Outfile writes rows to a file in SELECT INTO OUTFILE format.

PgLogParser parses Postgres logs.

Pipeline executes and controls a list of pipeline processes.

PodParser parses sections of a POD.

Processlist makes events when used to poll SHOW FULL PROCESSLIST.

ProcesslistAggregator aggregates PROCESSLIST entires.

Progress encapsulates a progress report.

ProtocolParser is a parent class for protocol-specific parsers.

QueryAdvisorRules encapsulates rules for checking queries.

QueryParser extracts parts of SQL statements, like table lists and subqueries.

QueryReportFormatter is used primarily by mk-query-digest to print reports.

QueryReview is an API to a query review table.

QueryRewriter rewrites and transforms queries.

Quoter handles value quoting, unquoting, escaping, etc.

ReportFormatter makes columnized reports given variable-width data lines.

Retry retries code until a condition succeeds.

RowDiff compares two sets of rows to find ones that are different.

Runtime keeps track of time to control how long a tool’s main loop runs.

Sandbox is an API for the test suite to access and control sandbox servers.

Schema encapsulates a data structure representing databases and tables.

SchemaIterator iterates schema objects.

SimpleTCPDumpParser parses simple tcpdump output.

SlowLogParser parses MySQL slow logs.

SlowLogWriter writes events to a file in MySQL slow log format.

SQLParser parses common MySQL SQL statements into data structures.

SysLogParser parses events from syslogs.

TableChecksum checksums tables.

TableChunker helps determine how to “chunk” a table.

TableNibbler determines how to nibble a table by chunks of rows.

TableParser parses SHOW CREATE TABLE.

TableSyncChunk is a table sync algo that uses discrete chunks.

TableSyncer helps sync tables with various table sync algo modules.

TableSyncGroupBy is a table sync algo that uses GROUP BY.

TableSyncNibble is a table sync algo that uses TableNibbler.

TableSyncStream is a table sync algo that selects all rows.

TableUsage determines how tables in a query are used.

TcpdumpParser parses TCP packets from tcpdump files.

TCPRequestAggregator aggregates TCP requests from tcpdump files.

TextResultSetParser converts a text result set to a data struct like DBI::selectall_arrayref().

TimeSeriesTrender calculates trends in time.

Transformers exports subroutines that convert and beautify values.

UpgradeReportFormatter formats the output of pt-upgrade.

VariableAdvisorRules specifies rules for checking MySQL variables.

VersionParser parses a MySQL version string.