Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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1.0.0, 1.5.2
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None
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CentOS 7
Description
Hello.
With our latest upgrade from CS 1.2 to Server 1.5 a typical select and insert between 2 tables is not working anymore.
– Test with derived sub: ERROR without limit in derived
insert into test_target_innodb ( C_, A_, B_, D_, E_) select C_, A_, B_, D_ , E_ |
FROM (select 'text' as C_, A_, B_, D_ , E_ FROM test_base_columnstore -- limit 5000 |
)derived;
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ERROR:
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CAL0055: ERROR: ExeMgr has caught an exception. InetStreamSocket::readToMagic(): I/O error2.1: err = -1 e = 104: Connection reset by peer
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Additional:
After repeating the insert a couple of times, the insert works wrong with empty or NULL Values and will not force any Warning or ERROR, just writing garbage int the target table:
select * from test_target_innodb order by rand(); |
# row_id, C_, A_, B_, D_, E_
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'28904', '', NULL, NULL, NULL, NULL |
'12174', '', NULL, NULL, NULL, NULL |
'7356', '', NULL, NULL, NULL, NULL |
With smaller result set ,e.g. with limit, it works). It works also when both tables are innodb tables. Hover, the full table insert is just 50K rows and a couple of columns is finally not really outstanding.
So far Errors coming up with default parameters from Upgrade. We've tried a lot of Parameter variations, like read_buffer_size, max_allowed_packet, etc., unfortunately with no success.
Alternative proceeding w/o derived table works fine with all tested larger result sets:
-- Test : works fine
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insert into test_target_innodb ( C_, A_, B_, D_, E_) select 'text' as C_, A_, B_, D_ , E_ |
FROM test_base_columnstore; |
If source and target tables are both columnstore, we've got the same result. The log entries:
Jul 30 19:14:05 127 cpimport.bin[20874]: 05.085591 |0|0|0| I 34 CAL0086: Initiating BulkLoad: -e 0 -s #007 -E #021 -R /tmp/columnstore_tmp_files/BrmRpt063019140520842.rpt -m 1 -P pm1-20842 -T SYSTEM -u7a2f86ab-8251-4753-9860-b0da6541a4df uii5 test_target_innodb
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Jul 30 19:14:05 127 cpimport.bin[20874]: 05.165076 |0|0|0| I 34 CAL0081: Start BulkLoad: JobId-5359; db-uii5
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Jul 30 19:14:07 127 ExeMgr[15996]: 07.310363 |7|0|0| D 16 CAL0042: End SQL statement
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Jul 30 19:14:07 127 ExeMgr[15996]: 07.310529 |7|0|0| C 16 CAL0055: ERROR: ExeMgr has caught an exception. InetStreamSocket::readToMagic(): I/O error2.1: err = -1 e = 104: Connection reset by peer
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Jul 30 19:14:07 127 writeenginesplit[20842]: 07.310631 |0|0|0| I 33 CAL0000: Send EOD message to All PMs
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Jul 30 19:14:07 127 writeengineserver[15990]: 07.315008 |0|0|0| D 32 CAL0000: 5671 : onReceiveEOD : child ID = 20874
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Jul 30 19:14:07 127 writeengineserver[15990]: 07.315128 |0|0|0| D 32 CAL0000: 5671 : Message Queue is empty; Stopping CF Thread
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Jul 30 19:14:07 127 cpimport.bin[20874]: 07.430849 |0|0|0| I 34 CAL0083: BulkLoad: JobId-5359; finished loading table uii5.test_target_innodb; 0 rows inserted
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Jul 30 19:14:07 127 cpimport.bin[20874]: 07.436008 |0|0|0| I 34 CAL0082: End BulkLoad: JobId-5359; status-SUCCESS
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Jul 30 19:14:07 127 writeengineserver[15990]: 07.451677 |0|0|0| I 32 CAL0000: 5671 : cpimport exit on success
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This Test indicates that we don't have a problem with structure of the data or memory in general. Therefore it seems to be a bug with result streaming from columnstore or Parameter we didn't found.
Your help would be really appreciated.
Thanks a lot in advance.
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Proceeding to reproduce the data for upon:
CREATE TABLE `test_base_columnstore_stage` ( |
`C_` varchar(100) DEFAULT NULL, |
`A_` varchar(100) DEFAULT NULL, |
`B_` varchar(100) DEFAULT NULL, |
`D_` varchar(100) DEFAULT NULL, |
`E_` varchar(100) DEFAULT NULL |
) ENGINE=innodb DEFAULT CHARSET=utf8 ; |
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CREATE TABLE `test_base_columnstore` ( |
`C_` varchar(100) DEFAULT NULL, |
`A_` varchar(100) DEFAULT NULL, |
`B_` varchar(100) DEFAULT NULL, |
`D_` varchar(100) DEFAULT NULL, |
`E_` varchar(100) DEFAULT NULL |
) ENGINE=columnstore DEFAULT CHARSET=utf8 ; |
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DELIMITER $$
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CREATE PROCEDURE generate_demo() |
BEGIN
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DECLARE i INT DEFAULT 0; |
WHILE i < 50000 DO
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INSERT INTO `test_base_columnstore_stage` (C_,A_,B_,D_,E_) VALUES ( |
ROUND((RAND() * 100000),0), ROUND((RAND() * 100000),0), ROUND((RAND() * 100000),0), ROUND((RAND() * 100000),0),
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1
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);
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SET i = i + 1; |
END WHILE; |
insert into test_base_columnstore select * from test_base_columnstore_stage; |
END$$ |
DELIMITER ;
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CALL generate_demo();
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