Moayad Alyaghshi created TINKERPOP-2195:
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Summary: Add finally block in HttpGremlinEndpointHandler to commit
transaction
Key: TINKERPOP-2195
URL: https://issues.apache.org/jira/browse/TINKERPOP-2195
Project: TinkerPop
Issue Type: Improvement
Components: server
Affects Versions: 3.4.2
Reporter: Moayad Alyaghshi
The HttpGremlinEndpointHandler is attempting to commit the transaction before
serialisation to be consistent with how things work for websocket, so the
transaction will be committed regardless of the serialisation result.
This's causing a performance problem to our implementation which depends on
JPA, because serialisation will require to read the entities again from the
database since the transaction has been committed and the objects are still
managed by the entity manager.
An improvement is to do the serialisation first, and add a finally block to the
try...catch statement, where transaction commit can take place.
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