[Koha-devel] Occasional problems with koha-dump (LOCK TABLES)

[dcook at prosentient.com.au]

Hi all,

 

I was testing koha-dump on a new Ubuntu 18.04 server I put together, and I
noticed that 2 out of 3 instances were failing to dump. Here are the errors:

 

mysqldump: Error: 'Access denied; you need (at least one of) the PROCESS
privilege(s) for this operation' when trying to dump tablespaces

mysqldump: Got error: 1045: Access denied for user
'koha_<instance>'@'localhost' (using password: YES) when using LOCK TABLES

 

The first isn't really relevant. The key one is the second one. You can
workaround it by adding "--single-transaction" to mysqldump in koha-dump,
but I'm still intrigued why it only happened to 2 out of 3 instances on that
server.

 

I haven't seen this issue on other 18.04 servers either. All the permissions
and what not were the same across the instances, the database connections
were sleeping, etc. Nothing made sense. 

 

mysql> show grants for 'koha_<instance>'@'localhost';

+--------------------------------------------------------------------------+

| Grants for koha_<instance>@localhost
|

+--------------------------------------------------------------------------+

| GRANT USAGE ON *.* TO 'koha_<instance>'@'localhost'
|

| GRANT ALL PRIVILEGES ON `koha_<instance>`.* TO
'koha_<instance>'@'localhost' |

+--------------------------------------------------------------------------+

 

Has anyone else had this problem?

 

David Cook

Software Engineer

Prosentient Systems

Suite 7.03

6a Glen St

Milsons Point NSW 2061

Australia

 

Office: 02 9212 0899

Online: 02 8005 0595

 

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