Hi community, as the ELK version in Bigtop is too old, and Logstash is rarely used in bigdata related projects, I'd like to propose we remove Logstash from Bigtop stack.
Since Elasticsearch still has lots of users, I recommend we can upgrade it to 6.1.4 which is the latest version support JDK8 compilation, once we are supporting JDK9 compilation, we can upgrade it to 6.2.4 as our final supported version, if the compilation is conflicted with other components in the future, we can remove Elasticsearch too. Regarding the Kibana, I'll try to upgrade it too, but I'm not sure if I can fix the compilation errors since it's a NodeJS project and I'm not very familiar with it, if I cannot fix it, and no one can help, I'd like to remove it too. Can you please tell me your opinion? Thanks. Best Regards, Zhiguo Wu
