mariadb/mysql-test/suite/binlog/t/binlog_flush_binlogs_delete_domain.test

# Prove basic properties of
#
#    FLUSH BINARY LOGS DELETE_DOMAIN_ID = (...)
#
# The command removes the supplied list of domains from the current
# @@global.gtid_binlog_state provided the binlog files do not contain
# events from such domains.

# The test is not format specific. One format is chosen to run it.
--source include/have_binlog_format_mixed.inc

# Reset binlog state
RESET MASTER;

# Empty list is accepted
FLUSH BINARY LOGS DELETE_DOMAIN_ID = ();
--echo and the command execution is effective thence rotates binlog as usual
--source include/show_binary_logs.inc

--echo Non-existed domain is warned, the command completes without rotation
--echo but with a warning
--let $binlog_pre_flush=query_get_value(SHOW MASTER STATUS, Position, 1)
FLUSH BINARY LOGS DELETE_DOMAIN_ID = (99);
--let $binlog_start=$binlog_pre_flush
--source include/show_binary_logs.inc

# Log one event in a specified domain and try to delete the domain
SET @@SESSION.gtid_domain_id=1;
SET @@SESSION.server_id=1;
CREATE TABLE t (a int);
SELECT @@GLOBAL.gtid_binlog_state, @@GLOBAL.gtid_binlog_pos;
--let $binlog_start=
--source include/show_binlog_events.inc

--error ER_BINLOG_CANT_DELETE_GTID_DOMAIN
FLUSH BINARY LOGS DELETE_DOMAIN_ID = (1);

# the same error after log rotation
FLUSH BINARY LOGS;
--error ER_BINLOG_CANT_DELETE_GTID_DOMAIN
FLUSH BINARY LOGS DELETE_DOMAIN_ID = (1);

# the latest binlog does not really contain any events incl ones from 1-domain
--let $purge_to_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
--eval PURGE BINARY LOGS TO '$purge_to_binlog';
# So now it's safe to delete
--error 0
FLUSH BINARY LOGS DELETE_DOMAIN_ID = (1);
--echo Gtid_list of the current binlog does not contain '1':
--let $binlog_file=query_get_value(SHOW MASTER STATUS, File, 1)
--source include/show_gtid_list.inc
--echo But the previous log's Gtid_list may have it which explains a warning from the following command
--let $binlog_file=$purge_to_binlog
--source include/show_gtid_list.inc

--echo Already deleted domain in Gtid_list of the earliest log is benign
--echo but may cause a warning
--error 0
FLUSH BINARY LOGS DELETE_DOMAIN_ID = (1);

# Few domains delete. The chosen number verifies among others how
# expected overrun of the static buffers of underlying dynamic arrays is doing.
--let $domain_cnt=17
--let $server_in_domain_cnt=3
--let $domain_list=
--disable_query_log
while ($domain_cnt)
{
  --let servers=$server_in_domain_cnt
  --eval SET @@SESSION.gtid_domain_id=$domain_cnt
  while ($servers)
  {
    --eval SET @@SESSION.server_id=10*$domain_cnt + $servers
    --eval INSERT INTO t SET a=@@SESSION.server_id

    --dec $servers
  }
  --let $domain_list= $domain_cnt, $domain_list

  --dec $domain_cnt
}
--enable_query_log
--let $zero=0
--let $domain_list= $domain_list$zero

--error ER_BINLOG_CANT_DELETE_GTID_DOMAIN
--eval FLUSH BINARY LOGS DELETE_DOMAIN_ID = ($domain_list)

# Now satisfy the safety condtion to purge log files containing $domain list
FLUSH BINARY LOGS;
--let $purge_to_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
--eval PURGE BINARY LOGS TO '$purge_to_binlog'
--error 0
--eval FLUSH BINARY LOGS DELETE_DOMAIN_ID = ($domain_list)
--echo Gtid_list of the current binlog does not contain $domain_list:
--let $binlog_file=query_get_value(SHOW MASTER STATUS, File, 1)
--source include/show_gtid_list.inc

# Show reaction on @@global.gtid_binlog_state not succeeding
# earlier state as described by the 1st binlog' Gtid_list.
# Now let it be out-order gtid logged to a domain unrelated to deletion.

--let $del_d_id=1
--eval SET @@SESSION.gtid_domain_id=$del_d_id;
SET @@SESSION.server_id=1;
SET @@SESSION.gtid_seq_no=1;
INSERT INTO t SET a=1;
SET @@SESSION.server_id=2;
SET @@SESSION.gtid_seq_no=2;
INSERT INTO t SET a=2;

SET @@SESSION.gtid_domain_id=11;
SET @@SESSION.server_id=11;
SET @@SESSION.gtid_seq_no=11;
INSERT INTO t SET a=11;

SET @gtid_binlog_state_saved=@@GLOBAL.gtid_binlog_state;
FLUSH BINARY LOGS;

# Inject out of order for domain '11' before
SET @@SESSION.gtid_domain_id=11;
SET @@SESSION.server_id=11;
SET @@SESSION.gtid_seq_no=1;
INSERT INTO t SET a=1;

SELECT @gtid_binlog_state_saved "as original state", @@GLOBAL.gtid_binlog_state as "out of order for 11 domain state";

# to delete '1', first to purge logs containing its events
--let $purge_to_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
--eval PURGE BINARY LOGS TO '$purge_to_binlog'

--echo the following command succeeds with warnings
--eval FLUSH BINARY LOGS DELETE_DOMAIN_ID = ($del_d_id)

# cleanup: forget the out-of-order
RESET MASTER;

#
# MDEV-14431
# Check rejection to delete a domain with value exceeding its range's maximum
#
--let $d_max_plus_1=`SELECT 1 << 32`
--error ER_BINLOG_CANT_DELETE_GTID_DOMAIN
--eval FLUSH BINARY LOGS DELETE_DOMAIN_ID = ($d_max_plus_1)

# accepted maximum:
--let $d_max=`SELECT (1 << 32) - 1`
--error 0
--eval FLUSH BINARY LOGS DELETE_DOMAIN_ID = ($d_max)

#
# Cleanup
#

DROP TABLE t;
RESET MASTER;