#=== Neo4j.rb configuration settings # The folder location of the neo4j and lucene database storage_path: db # When using the Neo4j::Model you can let neo4j automatically set timestamps when updating/creating nodes. # If set to true neo4j.rb automatically timestamps create and update operations if the model has properties named created_at/created_on or updated_at/updated_on # (similar to ActiveRecord). timestamps: true # Configuration for lucene lucene: { fulltext: { provider: lucene, type: fulltext }, exact: { provider: lucene, type: exact} } # If migrations should be run in a new thread # If set to true it you can use the database while it is migrating. migration_thread: false #use the clustered Neo4j GraphDatabase (org.neo4j.kernel.HighlyAvailableGraphDatabase) ha.db: false # Example of HA Configuration, see http://wiki.neo4j.org/content/High_Availability_Cluster # This is only used when ha.db is set to true ha.machine_id: 2 ha.server: 'localhost:6002' ha.zoo_keeper_servers: 'localhost:2181,localhost:2182,localhost:2183' # if enabled you can use the bin/neo4j-shell command to access the database enable_remote_shell: "port=9332" #===Memory mapped I/O settings=== #Each file in the Neo store can use memory mapped I/O for reading/writing. #Best performance is achived if the full file can be memory mapped but if #there isn't enough memory for that Neo will try and make the best use of #the memory it gets (regions of the file that get accessed often will more #likley be memory mapped). #For high traversal speed it is important to have the nodestore.db and #relationshipstore.db files. neostore.nodestore.db.mapped_memory: 25M neostore.relationshipstore.db.mapped_memory: 50M neostore.propertystore.db.mapped_memory: 90M neostore.propertystore.db.index.mapped_memory: 1M neostore.propertystore.db.index.keys.mapped_memory: 1M neostore.propertystore.db.strings.mapped_memory: 130M neostore.propertystore.db.arrays.mapped_memory: 130M #: ": ": "Cache settings: ": ": " #use adaptive caches YES|NO. Let Neo try make best use of available heap. use_adaptive_cache: YES #heap usage/max heap size ratio. Neo will increase caches while ratio #is less and decrease if greater. Default 0.77 seems to be a good over #all ratio of heap usage to avoid GC trashing. Larger heaps may allow for #a higher ratio while tiny heaps may need even less. adaptive_cache_heap_ratio: 0.77 #how aggressive Neo will decrease caches once heap ratio reached adaptive_cache_manager_decrease_ratio: 1.15 #how aggresive Neo will increase caches if ratio isn't yet reached adaptive_cache_manager_increase_ratio: 1.1 #if no requests are made to Neo this is the amount of time in ms Neo will wait #before it checks the heap usage and adapts the caches if needed adaptive_cache_worker_sleep_time: 3000 #minimum size (number of nodes) of node cache. If adaptive cache is in use #node cache will not be decreased under this value min_node_cache_size: 0 #minimum size (number of relationships) of relationship cache. If adaptive #cache is in use relationship cache will not be decreased under this value min_relationship_cache_size: 0 #maximum size (number of nodes) of node cache. If adaptive cache is not in #use the node cache will not be increased above this value max_node_cache_size: 1500 #maximum size (number of relationship) of node cache. If adaptive cache is #not in use the relationship cache will not be increased above this value max_relationship_cache_size: 3500