We are using Apache Camel to perform most of our ETLs. We are also using NodeRed for small things. For WebSphere MQ, I don’t think that it is possible to connect to the MQ using the IBM native protocol via NodeRed. So we will do this with Camel.
ElastAlert is a very nice package that can be installed on top of the ELK stack. It is a free replacement of the X Pack watcher product. The basic idea of the package is to use rules defined as yaml file in order to describe each alerting rule. You will find a nice introduction of the package possibilities here.
Elastic Search released the version 6.1 of its stack, and once again there are a tons of good new things but this is once again a disappointment for developers writing plugins for Kibana. Once again the compatibility is broken and the code has to be changed. This is painful and I stopped writing plugins for it. I will probably still port the traffic lights plugin for it. (I already have 3 different versions of it, one per Elastic flavour)
We already made a few blogs on Cassandra and Kairos DB. Unfortunately, the recipes used to build the cluster via docker-compose are no longer working with new versions of docker. You will find below a working docker-compose using version 3 of the docker-compose system that builds a three nodes Cassandra cluster.