[MCOL-4122] mariadb server crash on INSERT Created: 2020-06-29  Updated: 2021-04-28  Resolved: 2021-04-28

Status: Closed
Project: MariaDB ColumnStore
Component/s: MariaDB Server
Affects Version/s: 1.0.0
Fix Version/s: 5.6.1

Type: Bug Priority: Major
Reporter: alexschabel Assignee: David Hall (Inactive)
Resolution: Cannot Reproduce Votes: 0
Labels: crash
Environment:

Ubuntu 20.04 Server


Attachments: Text File mariadb-columnstore-dmesg.log     Text File mariadb-columnstore-error.log    
Issue Links:
Relates
relates to MCOL-4364 LOAD DATA crashes mariadb process Closed
Sprint: 2021-4, 2021-5, 2021-6, 2021-7

 Description   

Hello everybody, first time reporting a (possible) bug.
So thank you for your patience in case I do something wrong concerning report process.

I installed Ubuntu 20.04 freshly an installed mariadb 10.5.4 along with ColumnStore aiming to compare performance to standard InnoDB Instance.

I was able to successfully fill some ColumnStore tables with gigabytes of data.

However for three tables i run into an error which seems to be a server crash. See attached Server log.

One of the SQL Queries leading to the error is:

load data infile '/data/import/delta_180_result_op_rule.csv'
into table result_op_rule
character set utf8mb4
fields terminated by ',' optionally enclosed by '"'
lines terminated by '\r\n'
(point_value_prep_id,op_state_group,op_state,op_rule,@var_status)
set status = substring(@var_status, 6, 1);

When the csv file is needed, please let me know.

This is the defaults

system-admin@vm-mnt-cs-test:/var/lib/mysql$ my_print_defaults --mysqld
--socket=/run/mysqld/mysqld.sock
--innodb_buffer_pool_size=5G
--user=mysql
--pid-file=/run/mysqld/mysqld.pid
--basedir=/usr
--datadir=/var/lib/mysql
--tmpdir=/tmp
--lc-messages-dir=/usr/share/mysql
--lc-messages=en_US
--skip-external-locking
--bind-address=0.0.0.0
--log_error=/var/log/mysql/error.log
--expire_logs_days=10
--character-set-server=utf8mb4
--collation-server=utf8mb4_general_ci
--plugin-load-add=ha_columnstore.so
--plugin-maturity=beta

Best regards
Alex Schabel



 Comments   
Comment by Roman [ 2020-09-02 ]

Greetings Schabel
I believe we won't do much on this w/o the data b/c it seems like MCS crashes trying to convert data to send it to WriteEngine.
Did you try to insert the same data using cpimport tool?

Comment by David Hall (Inactive) [ 2020-11-04 ]

It looks like this is a duplicate of MCOL-4364. If I could get the CREATE TABLE statement and the csv load file, I could confirm this.

Generated at Thu Feb 08 02:47:57 UTC 2024 using Jira 8.20.16#820016-sha1:9d11dbea5f4be3d4cc21f03a88dd11d8c8687422.