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  1. MariaDB Server
  2. MDEV-27160

main.long_unique failed on ppc64el on Ubuntu 21.10 autopkgtest

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      While uploading Mariadb 10.5.13 to Ubuntu 21.10 Impish the following failure in autopkgtests (that runs the mtr among others) was noticed on platform ppc64el:

      main.long_unique                         w1 [ fail ]
              Test ended at 2021-12-02 15:01:58
       
      CURRENT_TEST: main.long_unique
      mysqltest: At line 409: query 'insert into t1 values(concat(repeat('sachin',10000000),'1'),concat(repeat('sachin',10000000),'1'),
      concat(repeat('sachin',10000000),'1'))' failed: 2013: Lost connection to MySQL server during query
       
      The result from queries just before the failure was:
      < snip >
      Field	Type	Null	Key	Default	Extra
      a	longblob	YES	UNI	NULL	
      b	longblob	YES	MUL	NULL	
      c	longblob	YES		NULL	
      show create table t1;
      Table	Create Table
      t1	CREATE TABLE `t1` (
        `a` longblob DEFAULT NULL,
        `b` longblob DEFAULT NULL,
        `c` longblob DEFAULT NULL,
        UNIQUE KEY `a` (`a`) USING HASH,
        UNIQUE KEY `b` (`b`,`c`) USING HASH
      ) ENGINE=MyISAM DEFAULT CHARSET=latin1
      show keys from t1;
      Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
      t1	0	a	1	a	A	NULL	NULL	NULL	YES	HASH		
      t1	0	b	1	b	A	NULL	NULL	NULL	YES	HASH		
      t1	0	b	2	c	A	NULL	NULL	NULL	YES	HASH		
      insert into t1 values(concat(repeat('sachin',10000000),'1'),concat(repeat('sachin',10000000),'1'),
      concat(repeat('sachin',10000000),'1'));
       
      More results from queries before failure can be found in /tmp/tmp.P0sky4MUVI/var/1/log/long_unique.log
       
       
      Server [mysqld.1 - pid: 4618, winpid: 4618, exit: 256] failed during test run
      Server log from this test:
      ----------SERVER LOG START-----------
      ----------SERVER LOG END-------------
      

      For more details please see https://bugs.launchpad.net/ubuntu/+source/mariadb-10.5/+bug/1951709/comments/5

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              Assignee:
              marko Marko Mäkelä
              Reporter:
              otto Otto Kekäläinen
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