Unrelated general error message after killing tokubackup process

[Shahriyar Rzayev]

If you try to kill TokuBackup backup process you will get:

mysql> select @@version;
+-----------------+
| @@version |
+-----------------+
| 5.6.27-76.0-log |
+-----------------+
1 row in set (0.00 sec)

mysql> set tokudb_backup_dir='/home/tokubackupdir';
^CCtrl-C -- sending "KILL QUERY 41" to server ...
Ctrl-C -- query aborted.
ERROR 1231 (42000): Variable 'tokudb_backup_dir' can't be set to the value of '/home/tokubackupdir'

Error is similar to errors when backup directory is missing, not writeable etc.

We can get "User aborted backup" message only with query:

mysql> SELECT @@tokudb_backup_last_error_string;
+------------------------------------------------------------------------------------------+
| @@tokudb_backup_last_error_string |
+------------------------------------------------------------------------------------------+
| User aborted backup; COPY phase returned an error: 1152 error 1152 (Unknown error 1152) |
+------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

Instead of confusing users just leave it with usual "query aborted" message.

[George Ormond Lorch III (gl-az)]

https://tokutek.atlassian.net/browse/BACKUP-122

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1680