On Wednesday 15 Oct 2014 02:14:37 Kerin Millar wrote: > On 14/10/2014 23:25, Mick wrote: > > On Tuesday 14 Oct 2014 21:15:48 Kerin Millar wrote:
> >> * Have you upgraded MySQL recently without going through the > >> documented upgrade procedure? [1] > > > > I'm still on mysql-5.5.39 > > OK. If it has always been running MySQL 5.5, there's nothing to be > concerned about. No, sorry I wasn't clear. I have been upgrading mysql on this machine for some years now, always running stable versions. After each update I run: mysql_upgrade -h localhost -u root -p > >> * Have you otherwise removed or modified files in the data > >> directory? > > > > Not as far as I know. I have suspicions of fs corruption though (it's > > been running out of space lately and I haven't yet found out why). > > Not good. Which filesystem, if I may ask? XFS is preferable, due to its > very good performance with O_DIRECT, which ext4 coming in second. Other > filesystems may be problematic. In particular, ZFS does not support > asynchronous I/O. ext4 > In any case, go into /var/lib/mysql and check whether the file that it > mentions exists. If it does not exist, try running: > > DROP TABLE `website1@002dnew`.`webform_validation_rule_components` > > If that does not work then try again, using DISCARD TABLESPACE as > opposed to DROP TABLE. Note that the backtick quoting is necessary > because of the presence of the @ symbol in the database name, which > would otherwise be misinterpreted. Hmm ... I'm probably not doing this right. First of all, there is no local database /var/lib/mysql/website1, because this is the live website name, on the shared server. I only have /var/lib/mysql/website_test on the local dev machine. Then although I can see, e.g. -rw-rw---- 1 mysql mysql 8939 Oct 14 19:25 actions.frm -rw-rw---- 1 mysql mysql 98304 Oct 14 19:25 actions.ibd in /var/lib/mysql/website_test, if I try to run DROP TABlE, logged in as (mysql) root, I get an unknown table, error 1051. ========================= mysql> USE website_test; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> DROP TABLE `website1@002dnew`.`actions`; ERROR 1051 (42S02): Unknown table 'actions' mysql> DISCARD TABLESPACE `website1@002dnew`.`actions`; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DISCARD TABLESPACE `website1@002dnew`.`actions`' at line 1 ========================= I think in mysql-5.5 I should be using DROP TABLESPACE instead? PS. This is the only database I have problems with. There are another dozen or so which I have imported in a similar fashion and there are no errors in the logs about them. -- Regards, Mick
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