Pipelet

This problem is really strange, maybe its just coincidence...
After creating indexes on the tasks table with
create index task_idx2 on tasks(queued_on);
create index task_idx1 on tasks(seg_id, status);
The tracker does not init and
Operational Error: cannot commit transaction - SQL statements in progress
is raised in segments_registration.
Dropping the index seems to solve the issue. The segments_registration routine does not touch the tasks table.

I'm setting the priority to low as the speed of the web interface is acceptable even without those indexes. This could become a performance bottleneck for big projects.