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# ==== Purpose ====
#
# Test verifies that when flushing an event to binary log fails the transaction
# is successfully rolled back and following COMMIT command doesn't report any
# assert.
#
# ==== Implementation ====
#
# Steps:
# 0 - SET max_binlog_cache_size=64K
# 1 - Create an Innodb table and insert required amount of data. Execute an
# UPDATE operation which generates a big update event whose size exceeds
# max_binlog_cache_size.
# 2 - Wait for error 1197. Execute COMMIT command.
# 3 - COMMIT should be successful.
#
# ==== References ====
#
# MDEV-18514: Assertion `!writer.checksum_len || writer.remains == 0' failed
#
--source include/have_innodb.inc
--source include/have_binlog_format_row.inc
--source include/master-slave.inc
--connection master
let $old_max_binlog_cache_size= query_get_value(SHOW VARIABLES LIKE "max_binlog_cache_size", Value, 1);
SET GLOBAL max_binlog_cache_size = 65536;
CREATE TABLE t1(a INT PRIMARY KEY, data VARCHAR(30000)) ENGINE=INNODB;
let $data = `select concat('"', repeat('a',6000), '"')`;
let $data1 = `select concat('"', repeat('b',6000), '"')`;
--disable_query_log
eval INSERT INTO t1 (a, data) VALUES (1, CONCAT($data, $data));
eval INSERT INTO t1 (a, data) VALUES (2, CONCAT($data, $data));
eval INSERT INTO t1 (a, data) VALUES (3, CONCAT($data, $data));
eval INSERT INTO t1 (a, data) VALUES (4, CONCAT($data, $data));
eval INSERT INTO t1 (a, data) VALUES (5, CONCAT($data, $data));
START TRANSACTION;
--error ER_TRANS_CACHE_FULL
eval UPDATE t1 SET data=$data1;
COMMIT;
--enable_query_log
--replace_result $old_max_binlog_cache_size ORIGINAL_VALUE
--eval SET GLOBAL max_binlog_cache_size= $old_max_binlog_cache_size
DROP TABLE t1;
--source include/rpl_end.inc
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