Current File : //usr/share/mysql-test/suite/ndb_rpl/t/wait_schema_logging.inc
# suite/t/rpl_ndb/wait_schema_logging.inc
#
# SUMMARY
# Waits until schema op performed on $source_server is
# being logged by $dest_server
# Assumes that source_server and dest_server are connected
# to the same cluster
# Assumes that $dest_server has binlogging enabled.
#
###############################################################
# Include file to wait for schema logging setup, where schema
# changes made on $source_server are logged on $dest_server
###############################################################
connection $dest_server;
#--echo Waiting for schema event logging to be active between $source_server and $dest_server
#--echo - First check that $dest_server has binary logging enabled
let $binlog= query_get_value(show variables like 'log_bin', Value, 1);
if (`SELECT "$binlog" != "ON"`)
{
show variables like 'server_id';
show variables like 'log_bin';
--die ERROR: Binlogging not activated
}
--disable_query_log
RESET MASTER;
--enable_query_log
# Following code 'inspired' by include/wait_for_binlog_event.inc
--let $wait_binlog_event=drop table
let $_loop_count= 10;
let $_event= ;
let $_event_pos= 1;
while (`SELECT INSTR("$_event","$wait_binlog_event") = 0`)
{
#--echo loop_count is $_loop_count;
dec $_loop_count;
if (!$_loop_count)
{
SHOW BINLOG EVENTS;
--die ERROR: failed while waiting local cluster schema event logging to start
}
connection $source_server;
--disable_query_log
create table wait_schema_logging (a int primary key) engine=ndb;
drop table wait_schema_logging;
--enable_query_log
connection $dest_server;
let $_event= query_get_value(SHOW BINLOG EVENTS, Info, $_event_pos);
#--echo Event is : $_event
while (`SELECT ("$_event" != "No such row") and (INSTR("$_event", "$wait_binlog_event") = 0)`)
{
inc $_event_pos;
let $_event= query_get_value(SHOW BINLOG EVENTS, Info, $_event_pos);
#--echo Event did not match- next event is $_event;
}
}
# Since we're attached to the same cluster, if we've seen the event
# then synchronous binlogging of changes is on (i.e. synchronous with
# the original schema change)
# Therefore it should now be safe to reset the master on the destination
# server as no more binlog changes are in-flight.
connection $dest_server;
--disable_query_log
RESET MASTER;
--enable_query_log
#--echo - Schema event logging is active
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