Fetching a new cluster composition can sometimes result in NoMethodError

[danielmconrad]

After a period of moderate inactivity, we began seeing this error on all subsequent requests. Restarting our instances temporarily fixed the issue. From the look of things, the key used in address_to_pool for Neo4j::Driver::Internal::Async::Pool::ConnectionPoolImpl is somehow replaced with a Set instead of an address.

Docker image: ruby:3.1.2

Gems:

gem 'activegraph', '11.1.0.alpha.4'
gem 'neo4j-ruby-driver', '4.4.0'

Error:

NoMethodError:
undefined method `attributes' for #<Set: {#<Neo4j::Driver::Internal::BoltServerAddress:0x00007ff5f7337940 @host="XXXXXXXX.databases.neo4j.io", @connection_host="XX.XXX.XXX.XXX", @port=7687>}>

        attributes == other&.attributes
                           ^^^^^^^^^^^^

File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/lib/neo4j/driver/internal/bolt_server_address.rb:74 in ==
File /usr/local/bundle/gems/set-1.0.3/lib/set.rb:404 in include?
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/pool/connection_pool_impl.rb:34 in block (2 levels) in retain_all
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/pool/connection_pool_impl.rb:33 in each
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/pool/connection_pool_impl.rb:33 in block in retain_all
File /usr/local/bundle/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/atomic/reentrant_read_write_lock.rb:147 in with_write_lock
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/pool/connection_pool_impl.rb:32 in retain_all
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/routing_table_handler_impl.rb:69 in fresh_cluster_composition_fetched
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/routing_table_handler_impl.rb:35 in block in ensure_routing_table
File /usr/local/bundle/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/atomic/reentrant_read_write_lock.rb:147 in with_write_lock
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/routing_table_handler_impl.rb:30 in ensure_routing_table
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/routing_table_registry_impl.rb:19 in block in ensure_routing_table
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/routing_table_registry_impl.rb:19 in ensure_routing_table
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/cluster/loadbalancing/load_balancer.rb:24 in acquire_connection
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/network_session.rb:95 in acquire_connection
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/async/network_session.rb:28 in begin_transaction_async
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/internal_session.rb:66 in private_begin_transaction
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/internal_session.rb:56 in block in transaction
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/retry/exponential_backoff_retry_logic.rb:23 in retry
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/internal_session.rb:55 in transaction
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/lib/neo4j/driver/synchronizable.rb:16 in block (4 levels) in with_sync_wrapper
File /usr/local/bundle/gems/async-2.2.1/lib/kernel/sync.rb:20 in Sync
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/lib/neo4j/driver/synchronizable.rb:16 in block (3 levels) in with_sync_wrapper
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/ruby/neo4j/driver/internal/internal_session.rb:41 in read_transaction
File /usr/local/bundle/gems/activegraph-11.1.0.alpha.4/lib/active_graph/transactions.rb:43 in run_transaction_work
File /usr/local/bundle/gems/activegraph-11.1.0.alpha.4/lib/active_graph/transactions.rb:37 in block in send_transaction
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/lib/neo4j/driver/auto_closable.rb:19 in block (3 levels) in with_block_definer
File /usr/local/bundle/gems/neo4j-ruby-driver-4.4.0/lib/neo4j/driver/synchronizable.rb:16 in block (4 levels) in with_sync_wrapper
File /usr/local/bundle/gems/async-2.2.1/lib/async/task.rb:107 in block in run
File /usr/local/bundle/gems/async-2.2.1/lib/async/task.rb:243 in block in schedule