could not obtain a database connection within 5.000 seconds

[almmaslim]

I'm getting this error "could not obtain a database connection within 5.000 seconds" after installing octopus. Is there a possibility that there are some connections that are not disconnected properly or something?
here is my shards.yml, ENV["DB_POOL"] = 30

octopus:
  master_shard: group1
  default_migration_group: shards_group
  environments:
    - development
    - production
  development:
    shards_group:
      group1:
        database: group1
        adapter:  postgresql
        host: localhost
        pool: <%= ENV["DB_POOL"] %>
      group2:
        database: group2
        adapter: postgresql
        host: localhost
        pool: <%= ENV["DB_POOL"] %>

[abelorian]

you could try this gem:

https://rubygems.org/gems/active_record_slave

[mufid]

I am experiencing the same issue using Rails 5.2. Did you happen to find a solution?