cratedb cluster setup demo

with docker && docker-compose

How to Run

docker-compose up -d

search result

you can use pg client connect to the server(user is crate)

select count(*) from sys.nodes

some notes

• vm.max_map_count

CrateDB requires [vm.max_map_count to be at least 262166](https://crate.io/docs/reference/en/latest/configuration.html#virtual-memory).  You will get an error on startup if it is less.  This is set using a container init in the pod definition.

do like below:

echo  vm.max_map_count=655360 >> /etc/sysctl.conf && \
sysctl -p