CODEWITHSUNDEEP
rubyneo4jneography
Jey Balachandran
Jey Balachandran

Reputation: 3935

Neo4j Batch Inserts

I used the Neo4j API to batch insert a few million records, which normally would take much longer if done individually. The import finished considerably faster but I do not see the millions of records I inserted. Does Neo4j keep some form of queue for the batch insertions and insert it over time?

If so, how can I see the progress of this queue? I am doing a count and I notice the records are increasing, but at a very slow pace.

I am using the Neography gem's batch insertion (https://github.com/maxdemarzi/neography/wiki/Batch) and the code that does the batch insert is below:

User.find_in_batches(batch_size: 500) do |group|
   $neo4j.batch(*group.map { |user| ["create_unique_node", "users", "id", user.id, user.graph_node_properties] })
end

Running Neo4j 2.1.2 enterprise edition on Ubuntu 12.04 LTS.

Upvotes: 1

Views: 174

Answers (1)

Michael Hunger
Michael Hunger

Reputation: 41706

Did you shutdown the batch inserter correctly after finishing your insert?

Which Neo4j version and OS are you using?

Also make sure your memory config is correct. Configure the memory-mapping fore the nodestore and relationshipstore correctly, see Rik's blog post for that.

It is not a queue, it is writing those records directly. How do you "check" and count? You must not access the database concurrently.

Can you share your code?

Upvotes: 0

Related Questions