Completly deinstall and remove Elasticsearch for complete restart and begin new

Question

After experimenting with Elasticsearch I'm searching for a way to completely remove everything concerning Elasticsearch on my server. I made quite a few mistakes and want to start completely new with a new installation.

Answer 1

Simply find the Java process that Elasticsearch is in and kill, or use curl -XPOST /*Your Ip*/:9200/_shutdown.

Then remove Elasticsearch from your system by simply deleting the ES files/folder.

Various different setups could require different deletion methods (linux use rm -rf ES dirs, windows the good ol' delete button will work, logstash may require additional steps) but as a general rule it's quite simply to remove.

If you wish to remove only the data you can delete the data dir, or wipe all your indexes and reindex.