[jira] [Created] (TINKERPOP-2188) PartitionStrategy from Python causes a 599 GremlinServer error

["Kelvin R. Lawrence (JIRA)" <ji...@apache.org>]

Kelvin R. Lawrence created TINKERPOP-2188:
---------------------------------------------

             Summary: PartitionStrategy from Python causes a 599 GremlinServer error
                 Key: TINKERPOP-2188
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2188
             Project: TinkerPop
          Issue Type: Bug
          Components: python
    Affects Versions: 3.4.1
         Environment: Linux client, Python 3, pip install of gremlinpython 3.4.1
            Reporter: Kelvin R. Lawrence


Using the code snippet below to any GremlinServer running even an empty TinkerGraph causes GremlinServer to fail with a 599 error. I assume as this is a decoration strategy that the client side Python is generating something invalid. I could not find any coverage for PartitionStrategy in the strategy test cases for the Python client. Maybe I missed them but did not find any. I opened this against 3.4.1 but I have not tried to use this strategy from Python before so not sure if it worked previously.

 

 
{code:java}
 
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
from gremlin_python.structure.graph import Graph
from gremlin_python import statics
from gremlin_python.process.graph_traversal import __
from gremlin_python.process.strategies import *
from gremlin_python.process.traversal import *
from gremlin_python.process.anonymous_traversal import traversal
import sys

endpoint = 'ws://localhost:8182/gremlin'
graph=Graph()
connection = DriverRemoteConnection(endpoint,'g')
g = traversal().withRemote(connection)

g2 = g.withStrategies(PartitionStrategy(partition_key="partition",write_partition="a", read_partitions="a"))
try:
x = g2.addV('test').property("p1",1).toList()
except:
print("Exception trying to add a vertex")
print(sys.exc_info())
finally:
connection.close(){code}
When run the code above will generate this error:

 
{code:java}
Exception trying to add a vertex
(<class 'gremlin_python.driver.protocol.GremlinServerError'>, GremlinServerError('599: None',), <traceback object at 0x7f723781ff88>)
 connection.close(){code}
 



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