Hi all,

I’ve been playing with the ZOOM libraries and Zebra, and it seems like there’s a memory leak when using C4::Context->Zconn with the environmental variable GATEWAY_INTERFACE.

I had a script that was creating a new connection for each request, and C4::Context->Zconn did look like it was calling the destroy method on the connection before creating a new one, and it was clear that each request was using a new connection, but I noticed the memory usage on the script slowly started going up. For a long-running script, the memory usage got over a gigabyte.

If I re-use the connection (ie don’t have GATEWAY_INTERFACE turned on), there’s no memory leak.

It shouldn’t matter for CGI Koha, but I’m curious how this might affect Plack Koha. I haven’t looked yet, but I figured it was worth sharing my observation. I suppose Plack recycles workers, so it’s not dangerous, but I wonder if this is affecting the memory usage of Plack workers. Food for thought at least.

David Cook

Systems Librarian

Prosentient Systems

72/330 Wattle St

Ultimo, NSW 2007

Australia

Office: 02 9212 0899

Direct: 02 8005 0595