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| Current File : //usr/opt/mysql57/mysql-test/include/rpl_init.inc |
# ==== Purpose ====
#
# Set up replication on several servers in a specified topology.
#
# By default, this script does the following:
# - Creates the connections server_1, server_2, ..., server_N, as
# well as extra connections server_1_1, server_2_1, ...,
# server_N_1. server_I and server_I_1 are connections to the same
# server.
# - Verifies that @@server_id of all servers are different.
# - Calls RESET MASTER, RESET SLAVE, USE test, CHANGE MASTER, START SLAVE.
# - Sets the connection to server_1 before exiting.
# - Sets the following mtr variables for convenience:
# $gtid_mode: the value of @@global.gtid_mode on server 1
# $gtid_mode_on: 1 if gtid_mode=on, 0 if gtid_mode=off
# $binlog_format: The value of @@global.binlog_format.
# $server_1_datadir, ..., $server_10_datadir: the @@datadir on each server.
# $server_1_uuid, ..., $server_10_uuid: the @@server_uuid on each server.
#
# ==== Usage ====
#
# 1. If you are going to use more than two servers, create
# rpl_test.cfg with the following contents:
#
# !include ../my.cnf
# [mysqld.1]
# log-slave-updates
# [mysqld.2]
# log-slave-updates
# ...
# [mysqld.N]
# log-slave-updates
#
# [ENV]
# SERVER_MYPORT_3= @mysqld.3.port
# SERVER_MYPORT_4= @mysqld.4.port
# SERVER_MYPORT_5= @mysqld.5.port
# ...
# SERVER_MYPORT_N= @mysqld.N.port
#
# (It is allowed, but not required, to configure SERVER_MYPORT_1
# and SERVER_MYPORT_2 too. If these variables are not set, the
# variables MASTER_MYPORT and SLAVE_MYPORT, configured in the
# default my.cnf used by the rpl and rpl_ndb suites, are used
# instead. In addition, in the rpl_ndb suite, SERVER_MYPORT_3 is
# not needed since MASTER_MYPORT1 can be used instead.)
#
# 2. Execute the following near the top of the test:
#
# [--let $rpl_server_count= 7]
# --let $rpl_topology= 1->2->3->1->4, 2->5, 6->7
# [--let $rpl_multi_source= 1]
# [--let $rpl_extra_connections_per_server= 1]
# [--let $rpl_check_server_ids= 1]
# [--let $rpl_skip_change_master= 1]
# [--let $rpl_skip_start_slave= 1]
# [--let $rpl_skip_reset_master_and_slave= 1]
# [--let $rpl_debug= 1]
# [--let $slave_timeout= NUMBER]
# [--let $use_gtids= 1]
# [--let $rpl_group_replication= 1]
# [--let $rpl_gtid_utils= 1]
# [--let $rpl_set_gtid_next_anonymous_in_new_connection= 1]
# [--let $rpl_skip_log_bin= 1]
# --source include/rpl_init.inc
#
# Parameters:
#
# $rpl_server_count
# The number of servers to configure. If this is not set, the largest
# number in $rpl_topology will be used.
#
# $rpl_topology
# A comma-separated list of replication chain
# specifications. Each replication chain specification has the
# form S1->S2->...->Sn, where 1 <= S1,...Sn <= $rpl_server_count.
# This file will configure S(i+1) to be a slave of S(i). If you
# want to specify the empty topology (no server replicates at
# all), you have to set $rpl_topology=none.
#
# $rpl_multi_source
# By default, multi-source topologies are not allowed, and the
# default channel is used always. To enable multi-source, set
# $rpl_multi_source=1. Then, the empty channel is never used,
# and the channel for connecting to server N is named
# 'channel_N'. However, rpl_sync.inc is not usable in this case,
# and rpl_end.inc must be used with the parameter.
#
# $rpl_extra_connections_per_server
# By default, this script creates connections server_N and
# server_N_1. If you can set this variable to a number, the
# script creates:
# server_N, server_N_1, ..., server_N_$rpl_extra_connections_per_server
#
# $rpl_check_server_ids
# If $rpl_check_server_ids is set, this script checks that the
# @@server_id of all servers are different. This is normally
# guaranteed by mtr, so it is only useful for debugging.
#
# $rpl_skip_reset_master_and_slave
# By default, this script issues RESET MASTER and RESET SLAVE
# before CHANGE MASTER and START SLAVE. RESET MASTER and RESET
# SLAVE are suppressed if $rpl_skip_reset_master_and_slave is
# set.
#
# $rpl_skip_change_master
# By default, this script issues CHANGE MASTER so that all slaves
# are ready to run as specified by $rpl_topology. CHANGE MASTER
# is suppressed if $rpl_skip_change_master is set.
#
# $rpl_skip_start_slave
# By default, this script issues START SLAVE on all slaves
# specified by $rpl_topology. START SLAVE is suppressed if
# $rpl_skip_change_master is set.
#
# $rpl_debug
# By default, this script only outputs a static text that says
# that rpl_init.inc was invoked. If $rpl_debug is set, additional
# debug info is printed. The debug info may be nondeterministic,
# so no test case should be checked in with $rpl_debug set.
#
# $slave_timeout
# Timeout used when waiting for the slave threads to start.
# See include/wait_for_slave_param.inc
#
# $use_gtids
# Use option MASTER_AUTO_POSITION = 1 to CHANGE MASTER, and use
# GTIDs in sync_*.inc. If the variable is not set, then this
# script sets it to 1 if GTID_MODE = ON and 0 otherwise.
#
# $rpl_group_replication
# This checks for whether we have Group Replication enabled or not. Based
# on the check this parameter we execute change master or not in this
# inc file. Moreover, it also sets the default timeouts for the group
# replication tests.
#
# $rpl_gtid_utils
# Create stored functions for GTID manipulation on every server (see
# gtid_utils.inc).
#
# $rpl_set_gtid_next_anonymous_in_new_connection
# Executes SET GTID_NEXT = 'ANONYMOUS' in each new connection.
#
# $rpl_skip_log_bin
# Bypasses the binlog related checking to allow testing --skip-log-bin
# servers.
#
# ==== Side effects ====
#
# Changes current connection to server_1.
#
#
# ==== Internal variables configured by this file ====
#
# $rpl_inited
# Set to 1 to indicate that this file has been sourced. This will
# be set to '' again by rpl_end.inc.
#
# $_rpl_server_count
# A backup of $rpl_server_count is stored in this variable. This is
# used to perform a sanity check in rpl_change_topology.inc, to
# check that $rpl_server_count does not between rpl_init.inc and
# rpl_end.inc
#
# $rpl_server_count_length
# Set to LENGTH($rpl_server_count). So if $rpl_server_count < 10,
# then $rpl_server_count_length = 1; if 10 <= $rpl_server_count <
# 100, then $rpl_server_count_length = 2, etc.
#
# $_rpl_space
# Contains a single space. This is used by other .inc files to
# append a single space character to the end of an
# $mysqltest_variable. This can't be done in any more direct way
# since mysqltest trims whitespace from string literals.
#
# $_rpl_no_server
# A sequence of $rpl_server_count_length spaces. Used internally by
# rpl_generate_sync_chain.inc
#
# $rpl_connection_count
# The number of master-slave connections. For instance, if
# $rpl_topology is '1->3', this is equal to 1; if $rpl_topology is
# '1->2->3->1', this is 3.
#
#
if (!$rpl_skip_log_bin)
{
# The default behaviour is to run the binlog checking
--source include/have_log_bin.inc
}
--let $include_filename= rpl_init.inc [topology=$rpl_topology]
--source include/begin_include_file.inc
if ($rpl_debug)
{
--echo ---- Check input ----
--echo MASTER_MYPORT='$MASTER_MYPORT' SLAVE_MYPORT='$SLAVE_MYPORT' MASTER_MYPORT1='$MASTER_MYPORT1' SLAVE_MYPORT1='$SLAVE_MYPORT1'
}
# Allow $MASTER_MYPORT as alias for $SERVER_MYPORT_1
if (!$SERVER_MYPORT_1)
{
--let SERVER_MYPORT_1= $MASTER_MYPORT
}
# Allow $SLAVE_MYPORT as alias for $SERVER_MYPORT_2
if (!$SERVER_MYPORT_2)
{
--let SERVER_MYPORT_2= $SLAVE_MYPORT
}
# Allow $MASTER_MYPORT1 as alias for $SERVER_MYPORT_3
# (this alias is used by rpl_ndb tests)
if (!$SERVER_MYPORT_3)
{
--let SERVER_MYPORT_3= $MASTER_MYPORT1
}
# Allow $SLAVE_MYPORT1 as alias for $SERVER_MYPORT_4
# (this alias is used by rpl_ndb tests)
if (!$SERVER_MYPORT_4)
{
--let SERVER_MYPORT_4= $SLAVE_MYPORT1
}
# Check that $rpl_server_count is set
if (!$rpl_server_count)
{
if ($rpl_topology == none)
{
--let $rpl_server_count= 1
}
if ($rpl_topology != none)
{
--let $rpl_server_count= `SELECT REPLACE('$rpl_topology', '->', ',')`
if (`SELECT LOCATE(',', '$rpl_server_count')`)
{
--let $rpl_server_count= `SELECT GREATEST($rpl_server_count)`
}
}
}
# Set $rpl_server_count_length and some auxiliary variables.
--let $rpl_server_count_length= `SELECT LENGTH('$rpl_server_count')`
--let $_rpl_server_count= $rpl_server_count
--let $_rpl_no_server= `SELECT REPEAT(' ', $rpl_server_count_length)`
--let $_rpl_space= `SELECT ' '`
--let $_rpl_extra_connections_per_server= $rpl_extra_connections_per_server
if ($_rpl_extra_connections_per_server == '')
{
--let $_rpl_extra_connections_per_server= 1
}
if ($rpl_debug)
{
--echo ---- Setup connections and reset each server ----
}
if (!$rpl_debug)
{
--disable_query_log
}
--let $gtid_mode= `SELECT @@GLOBAL.GTID_MODE`
--let $gtid_mode_on= 0
if ($gtid_mode == 'ON')
{
--let $gtid_mode_on= 1
}
--let $binlog_format= `SELECT @@GLOBAL.BINLOG_FORMAT`
# Create two connections to each server; reset master/slave, select
# database, set autoinc variables.
--let $_rpl_server= $rpl_server_count
--let $underscore= _
if ($group_replication_group_name == '')
{
--let $group_replication_group_name= `SELECT UUID()`
}
# if in group replication mode, set the default timeouts
if($rpl_group_replication)
{
# Reset default timeouts for the group replication tests
--source include/group_replication_timeouts.inc
}
while ($_rpl_server)
{
# Connect.
--let $rpl_server_number= $_rpl_server
--let $rpl_connection_name= server_$_rpl_server
--source include/rpl_connect.inc
--let $_rpl_connection_number= 1
while ($_rpl_connection_number <= $_rpl_extra_connections_per_server)
{
--let $rpl_connection_name= server_$_rpl_server$underscore$_rpl_connection_number
--source include/rpl_connect.inc
--inc $_rpl_connection_number
}
# Configure server.
--let $rpl_connection_name= server_$_rpl_server
--source include/rpl_connection.inc
USE test;
if ($rpl_gtid_utils)
{
--source include/gtid_utils.inc
}
if (!$rpl_skip_reset_master_and_slave)
{
RESET MASTER;
RESET SLAVE;
}
# Only way to do this in mtr :-(
if ($_rpl_server == 1) {
--let $server_1_datadir= `SELECT @@datadir`
--let $server_1_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 2) {
--let $server_2_datadir= `SELECT @@datadir`
--let $server_2_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 3) {
--let $server_3_datadir= `SELECT @@datadir`
--let $server_3_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 4) {
--let $server_4_datadir= `SELECT @@datadir`
--let $server_4_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 5) {
--let $server_5_datadir= `SELECT @@datadir`
--let $server_5_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 6) {
--let $server_6_datadir= `SELECT @@datadir`
--let $server_6_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 7) {
--let $server_7_datadir= `SELECT @@datadir`
--let $server_7_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 8) {
--let $server_8_datadir= `SELECT @@datadir`
--let $server_8_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 9) {
--let $server_9_datadir= `SELECT @@datadir`
--let $server_9_uuid= `SELECT @@server_uuid`
}
if ($_rpl_server == 10) {
--let $server_10_datadir= `SELECT @@datadir`
--let $server_10_uuid= `SELECT @@server_uuid`
}
if($rpl_group_replication)
{
--source include/store_group_replication_auto_increment.inc
if(!$rpl_skip_group_replication_start)
{
--source include/start_group_replication.inc
}
# Group Replication has its own auto_increment default value:
# GROUP_REPLICATION_AUTO_INCREMENT_INCREMENT= 7
# which on Group Replication start will set server variables:
# auto_increment_increment= 7
# auto_increment_offset= SERVER_ID
# This configuration enables conflict free auto-increment transactions
# on a group. Please see WL#8445 for further details.
#
# Group Replication plugin is tested with two MTR suites:
# group_replication: tests written with GR in mind that exploits all
# GR features.
# rpl: tests that are written for asynchronous
# replication, on which changes are written only on
# master and synced asynchronously later on slaves.
#
# Tests from rpl suite are run for regression testing. Since these
# assume that only master get changes, there is no need to use GR
# auto_increment default value. Actually if we use it, that will make
# the tests to fail with result content mismatch. Thence for rpl suite
# we revert GR auto_increment default value.
#
# We can distinguish if we are running rpl or group_replication suite
# by checking if rpl_group_replication_default_connections.inc file
# was included. Only group_replication suite includes it.
# So if the flag !$rpl_group_replication_default_connections is false,
# we are currently running rpl suite, which means that we need to
# revert GR auto_increment default value.
if (!$using_rpl_group_replication_default_connections)
{
--source include/restore_group_replication_auto_increment.inc
}
}
--dec $_rpl_server
}
# Set rpl_inited to indicate that initialization is done.
if ($rpl_inited)
{
--die Detected double invocation of rpl_init.inc. Use rpl_change_topology.inc or invoke rpl_end.inc before the second invocation of rpl_init.inc
}
--let $rpl_inited= 1
# Set $show_rpl_debug_info to make subsequent failures in
# e.g. wait_condition.inc print replication debug output.
--let $show_rpl_debug_info= 1
# Indicate that the server is in a dirty state and needs to be restarted
# if the test is skipped. If the test is not skipped, it will continue
# to the end and execute its cleanup section (and check-testcase will
# report if you forget to clean up).
--source include/force_restart_if_skipped.inc
# Assert that all hosts have different server_ids
if ($rpl_check_server_ids)
{
if ($rpl_debug)
{
--echo ---- Check that @@server_id is distinct for all servers ----
}
--let $_rpl_server= $rpl_server_count
while ($_rpl_server)
{
--let $_rpl_server2= $_rpl_server
--dec $_rpl_server2
while ($_rpl_server2)
{
--let $assert_text= Servers $_rpl_server and $_rpl_server2 should have different @@server_id
--let $assert_condition= [$_rpl_server:SELECT @@server_id AS i, i, 1] != [$_rpl_server2:SELECT @@server_id AS i, i, 1]
--source include/assert.inc
--dec $_rpl_server2
}
--dec $_rpl_server
}
}
# Determine if we should use gtids or not.
if ($use_gtids == '')
{
--let $use_gtids= $gtid_mode_on
}
--source include/rpl_change_topology.inc
# reconnect group_replication default connection
# so session variables values can be
# reinitialized with its corresponding global value.
if($rpl_group_replication)
{
if ($using_rpl_group_replication_default_connections)
{
--let $rpl_group_replication_reconnect= 1
--source include/rpl_group_replication_default_connections.inc
}
}
if (!$rpl_skip_start_slave)
{
if(!$rpl_group_replication)
{
--source include/rpl_start_slaves.inc
}
}
--let $rpl_connection_name= server_1
--source include/rpl_connection.inc
--let $skip_restore_connection= 1
--let $include_filename= rpl_init.inc
--source include/end_include_file.inc