MQSeries.net :: View topic - Too many open files with HTTP async and SSL

campbela · Posted: Mon Oct 19, 2015 8:26 am Post subject:

Hi,

We have just started to use the HTTP async nodes in MB 8 (on AIX) and encountered a problem with socket connections.

Our request flow will receive a message over MQ and make a web service call to a HTTPS endpoint. The response is recieved by the corresponding response flow. Both flows are deployed with no additional instances.

I left this running all week and messages were being processed at a steady rate in our test environment (1 transaction every few minutes)

When I checked today, I saw that they had been failing with java.net.SocketException: Too many files open

lsof showed that there were 2000 connections to the IP address on port 443 for the web service endpoint.

I stopped and restarted the Broker and the connections were cleared. As new transactions came through, the number of connections started to build up again.

I switched the flow to point to the HTTP instance of the web service (its a UDP) and no new connections were shown by lsof (only the ones created when it was HTTPS). When I switched it back to HTTPS, they started building up again.

Any idea why these connections are not cleared/reused?

Thanks