When To Use sub-flow, vs VM vs Flow

Need to remember the various use cases for the strategies with connecting components of a flow. Also need to remember what state/variables get passed from component to component. It looks like when doing enrichment, I call out with a sub-flow reference. ┬áNot sure why using a VM didn’t work for this case. Turns out, using[…]

RabbitMQ can run out of file descriptors

Got this helpful log message after complains things weren’t working: =WARNING REPORT==== 12-Aug-2016::07:16:55 === file descriptor limit alarm set. ******************************************************************** *** New connections will not be accepted until this alarm clears *** ********************************************************************   Found this: https://bugs.launchpad.net/fuel/+bug/1279594   need to adjust /etc/defaults/rabbitmq-server Uncomment #ulimit -n 1024 Change it to ulimit -n 102400 Restart rabbit.