Connection hangs when commiting data using Graph traversal

Support Bug
1

Hi,

I am using Tinkerpop for traversing some nodes of the dbpedia. The process is the following given a URI expand it on dbpedia a certain level and commit results on Stardog. When expanding without committing changes, there is not problem; data is stored when closing the connection. However when committing, it seems that a connection is not closed. And as a consequence of this the program hangs at a certain point.

2018-01-02 16:55:04 DEBUG PoolingHttpClientConnectionManager:249 - Connection request: [route: {}->http://localhost:5820][total kept alive: 0; route allocated: 20 of 20; total allocated: 20 of 200]

I can see that Tinkerpop Graph supports transactions, and I am using as a configuration AUTO (default). I use g.tx().commit() to commit changes. Is there a specific way to commit changes using tinkerpop and avoid the connection pool problem?

This problem might be related this.

Thanks!

2

Hi,

What versions of Tinkerpop and Stardog are you using? What kind of object is g in your g.tx().commit() call?

3

Ohh I am sorry, thanks for your answer.

I am using Tinkerpop 3.0.2-incubating and Stardog 5 (here is my complete POM). g is a org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource, but it should have the same effect as calling tx() from org.apache.tinkerpop.gremlin.structure.Graph.