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