Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.2.10
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Ubuntu 16.04 LTS 64 Bit (fresh install in VM)
mariadb 10.2.10-MariaDB-10.2.10+maria~xenial-log from official repository (fresh install)
Description
hi,
i discovered a bug when using the storage-engine ARIA with row_format=FIXED. we use this combination for an efficient storage of a highly partioned table with more than 4*10^9 rows.
after migration from mariadb 10.1 to 10.2 our import was broken because of
ERROR 1114 (HY000) at line 34: The table 'nutzung' is full
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my first thought was that it is a problem related to partitioning (we create a new partition every month and first occurence of the problem was on the same day).
i started a clean rebuild of the complete database, but the error remains and already occured during the import.
after playing around with the create-statement i detected that this problem is not related to partitioning but to the row_format.
our table definition is not very complex
>CREATE TABLE `nutzung` ( |
> `id1` mediumint(8) unsigned NOT NULL, |
> `id2` int(10) unsigned NOT NULL, |
> `start` int(10) unsigned NOT NULL, |
> `ende` int(10) unsigned NOT NULL, |
> `laenge` mediumint(8) unsigned NOT NULL, |
> `bytes` bigint(20) unsigned NOT NULL, |
> `flag` tinyint(3) unsigned NOT NULL DEFAULT 0, |
> `ident` char(16) CHARACTER SET ascii COLLATE ascii_bin NOT NULL, |
> `dummy` char(2) CHARACTER SET ascii COLLATE ascii_bin NOT NULL DEFAULT '', |
> KEY `idx_id2` (`id2`), |
> KEY `idx_id1` (`id1`), |
> KEY `idx_start` (`start`), |
> KEY `idx_ende` (`ende`) |
>) ENGINE=Aria DEFAULT CHARSET=ascii row_format=FIXED; |
when we now insert data into this table, then the table is full after the fourth multi-insert-statement (1MB sql per statement ).
"show table status" now shows
nutzung | Aria | 10 | Fixed | 65535 | 46 | 3014610 | 3014655 | 1957888 | 0 | NULL | ... | row_format=FIXED
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you will note that max_data_length is a small value
and "check table" reports
...nutzung | check |warning | datefile ist almost full, 3014610 of 3014655 used
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we now reverted the database to current release of mariadb 10.1 and after reimport everything was ok again.
"show table" in 10.1 reports for the table
| nutzung | Aria | 10 | Fixed | 4186352479 | 46 | 192572214034 | 0 | 121799540736 | 0 | NULL | 2017-11-08 01:37:42 | 2017-11-08 10:29:43 | 2017-11-08 12:49:30 | ascii_general_ci | NULL | row_format=FIXED partitioned |
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regards
marc
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