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While refreshing the IO_CACHE, do not update its parameters (read_pos, read_end & pos_in_file) if there is nothing left to read.
30 lines
633 B
Text
30 lines
633 B
Text
#
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# MDEV-9044 : Getting binlog corruption on my Galera cluster (10.1.8)
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# making it impossible to async slave.
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#
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START SLAVE;
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SELECT @@GLOBAL.BINLOG_CACHE_SIZE;
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@@GLOBAL.BINLOG_CACHE_SIZE
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8192
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CREATE TABLE t1 (c1 INTEGER PRIMARY KEY, c2 VARCHAR(12000)) ENGINE=INNODB;
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CREATE TABLE t2 (c1 INTEGER PRIMARY KEY) ENGINE=INNODB;
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START TRANSACTION;
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INSERT INTO t1 VALUES(1, REPEAT('-', 10000));
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COMMIT;
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INSERT INTO t2 VALUES(1);
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SELECT c1, LENGTH(c2) FROM t1;
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c1 LENGTH(c2)
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1 10000
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SELECT * FROM t2;
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c1
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1
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SELECT c1, LENGTH(c2) FROM t1;
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c1 LENGTH(c2)
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1 10000
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SELECT * FROM t2;
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c1
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1
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# Cleanup
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DROP TABLE t1, t2;
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STOP SLAVE;
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RESET SLAVE ALL;
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