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--source include/have_ndb.inc
--source include/have_log_bin.inc
--source include/have_debug.inc
# Bug#35217 Strange ndb_binlog_index error inserting rows in MyISAM table
# Verify that mysql.ndb_binlog_index is getting unique epoch values
# Do this by dropping the PK, inserting some data and checking
# uniqueness
#
alter table mysql.ndb_binlog_index drop primary key;
use test;
create table t1 (a int) engine=ndb;
delimiter %;
create procedure ins (rows int)
begin
set @x = 0;
repeat
insert into t1 values (1);
set @x = @x + 1;
until @x = rows
end repeat;
end%
delimiter ;%
call ins(10000);
# Did any of the epochs have > 1 entry?
# (Answer should be no !)
--echo Duplicate epochs according to mysql.ndb_binlog_index
select epoch >> 32 as gci,
(epoch << 32) >> 32 as ugci,
sum(1) as count
from mysql.ndb_binlog_index
group by epoch
having count > 1;
# Now look at what's in the Binlog events themselves, in case they also
# carry duplicate epochs
#
# Code here similar to ndb_binlog_get_binlog_stmts.inc
#
--disable_query_log
let $MYSQLD_DATADIR= `select @@datadir;`;
--exec $MYSQL_BINLOG --verbose $MYSQLD_DATADIR/mysqld-bin.000001 > $MYSQLTEST_VARDIR/tmp/ndb_binlog_mysqlbinlog.sql
create table raw_binlog_rows (txt varchar(1000));
--eval load data local infile '$MYSQLTEST_VARDIR/tmp/ndb_binlog_mysqlbinlog.sql' into table raw_binlog_rows columns terminated by '\n';
create table binlog_stmt_parts_unassoc (txt varchar(1000), line_count int, stmt_boundary int);
set @line_count=0;
set @stmt_boundary=0;
# Use replace() here to get rid of any unwanted Windows
# CRs
insert into binlog_stmt_parts_unassoc
select replace(txt, '\r', ''),
@line_count:= @line_count + 1, # So we can preserve order later
(txt like '%INSERT%' or # Identify statement boundaries
txt like '%UPDATE%' or
txt like '%DELETE%')
from raw_binlog_rows
where
txt like '###%'; # Discard non verbose output
create table binlog_stmt_parts_assoc (txt varchar(1000), line_count int, stmt_num int);
set @stmt_count = 0;
insert into binlog_stmt_parts_assoc
select txt,
line_count,
@stmt_count:= @stmt_count + stmt_boundary # All rows from same stmt will
# have same stmt_num
from binlog_stmt_parts_unassoc order by line_count;
create table binlog_stmts (txt varchar(1000), stmt_num int);
insert into binlog_stmts
select group_concat(right(txt, # Combine rows in statment into 1
length(txt) - 4) # Trim ### from line start
order by line_count
separator ' '), stmt_num
from binlog_stmt_parts_assoc
group by stmt_num;
create table epochs_in_binlog (epoch bigint);
# Trim INSERT INTO mysql.ndb_apply_status SET @1=1 @2=144115213845659648 @3='' @4=0 @5=0
# down to a list of epochs
#
insert into epochs_in_binlog
select substring_index(right(txt, length(txt) - instr(txt, '@2=') - 3),' ', 1)
from binlog_stmts
where txt like '%ndb_apply_status%'
order by txt;
--enable_query_log
--echo Duplicate epochs according to MySQLD Binlog entries
select epoch >> 32 as gci,
(epoch << 32) >> 32 as ugci,
sum(1) as count
from epochs_in_binlog
group by epoch
having count > 1;
--disable_query_log
drop table raw_binlog_rows;
drop table binlog_stmt_parts_unassoc;
drop table binlog_stmt_parts_assoc;
drop table binlog_stmts;
drop table epochs_in_binlog;
--enable_query_log
# Now cleanup
reset master;
alter table mysql.ndb_binlog_index add primary key (epoch, orig_server_id, orig_epoch);
drop procedure ins;
drop table t1;
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