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MDEV-4937: sql_slave_skip_counter does not work with GTID

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As a side-effect of purge_relay_logs(), sql_slave_skip_counter
was silently ignored in GTID mode.

But sql_slave_skip_counter in fact is not a good match with GTID.
And it is not really needed either, as users can explicitly set
@@gtid_slave_pos to skip specific GTIDs, in a way that matches
well how GTID replication works.

So with this patch, we give an error on attempts to set
sql_slave_skip_counter when using GTID, with a suggestion to use
gtid_slave_pos instead, if needed.
This commit is contained in:
unknown
2014-02-11 14:06:03 +01:00
parent f3a6f86ec3
commit cc7925765e
7 changed files with 45 additions and 1 deletions
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6
mysql-test/suite/rpl/r/rpl_gtid_basic.result
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@@ -61,7 +61,13 @@ include/stop_slave.inc
INSERT INTO t1 VALUES (5, "m1a");
INSERT INTO t2 VALUES (5, "i1a");
CHANGE MASTER TO master_host = '127.0.0.1', master_port = MASTER_PORT,
MASTER_USE_GTID=SLAVE_POS;
SET GLOBAL sql_slave_skip_counter=1;
ERROR HY000: When using GTID, @@sql_slave_skip_counter can not be used. Instead, setting @@gtid_slave_pos explicitly can be used to skip to after a given GTID position.
CHANGE MASTER TO master_host = '127.0.0.1', master_port = MASTER_PORT,
MASTER_USE_GTID=CURRENT_POS;
SET GLOBAL sql_slave_skip_counter=10;
ERROR HY000: When using GTID, @@sql_slave_skip_counter can not be used. Instead, setting @@gtid_slave_pos explicitly can be used to skip to after a given GTID position.
include/start_slave.inc
SELECT * FROM t1 ORDER BY a;
a b