Matthew Carr created TINKERPOP-2943:
---------------------------------------
Summary: GraphBinary serialization error when vertex ID is larger
than `2**31`.
Key: TINKERPOP-2943
URL: https://issues.apache.org/jira/browse/TINKERPOP-2943
Project: TinkerPop
Issue Type: Bug
Components: python
Affects Versions: 3.6.2
Environment: Python 3.10
Reporter: Matthew Carr
An exception occurs when using the "graphbinaryV1" serialization format and an
attempt is made to query a vertex whose ID is larger than `2**31`. I
encountered this issue on `gremlinpython` 3.6.2 running on Python 3.10. A
minimal reproduction is as follows:
```
from gremlin_python.driver.driver_remote_connection import
DriverRemoteConnection
from gremlin_python.process.anonymous_traversal import traversal
remote = DriverRemoteConnection("ws://127.0.0.1:8182/gremlin", "g")
g = traversal().withRemote(remote)
g.V(2**31 + 1).next()
```
This code produces the following stack trace on my machine:
```
Traceback (most recent call last):
File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
exec(code, run_globals)
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/__main__.py",
line 39, in <module>
cli.main()
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/server/cli.py",
line 430, in main
run()
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/server/cli.py",
line 284, in run_file
runpy.run_path(target, run_name="__main__")
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_runpy.py",
line 321, in run_path
return _run_module_code(code, init_globals, run_name,
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_runpy.py",
line 135, in _run_module_code
_run_code(code, mod_globals, init_globals,
File
"/home/matt/.vscode/extensions/ms-python.python-2023.4.1/pythonFiles/lib/python/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_runpy.py",
line 124, in _run_code
exec(code, run_globals)
File "/home/matt/Projects/tada/thermo/repro.py", line 6, in <module>
g.V(2**31 + 1).next()
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/process/traversal.py",
line 117, in next
return self.__next__()
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/process/traversal.py",
line 48, in __next__
self.traversal_strategies.apply_strategies(self)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/process/traversal.py",
line 684, in apply_strategies
traversal_strategy.apply(traversal)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/remote_connection.py",
line 78, in apply
remote_traversal = self.remote_connection.submit(traversal.bytecode)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/driver_remote_connection.py",
line 104, in submit
result_set = self._client.submit(bytecode,
request_options=self._extract_request_options(bytecode))
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/client.py",
line 150, in submit
return self.submit_async(message, bindings=bindings,
request_options=request_options).result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 458, in result
return self.__get_result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in
__get_result
raise self._exception
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/connection.py",
line 73, in cb
f.result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 451, in result
return self.__get_result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in
__get_result
raise self._exception
File "/usr/lib/python3.10/concurrent/futures/thread.py", line 58, in run
result = self.fn(*self.args, **self.kwargs)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/protocol.py",
line 86, in write
message = self._message_serializer.serialize_message(request_id,
request_message)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/serializer.py",
line 225, in serialize_message
args = processor_obj.get_op_args(op, args)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/serializer.py",
line 48, in get_op_args
return op_method(args)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/driver/serializer.py",
line 88, in bytecode
args['gremlin'] = self._writer.to_dict(gremlin)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/structure/io/graphbinaryV1.py",
line 168, in to_dict
return self.serializers[t].dictify(obj, self, to_extend)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/structure/io/graphbinaryV1.py",
line 811, in dictify
writer.to_dict(arg, to_extend)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/structure/io/graphbinaryV1.py",
line 168, in to_dict
return self.serializers[t].dictify(obj, self, to_extend)
File
"/home/matt/Projects/tada/thermo/.venv/lib/python3.10/site-packages/gremlin_python/structure/io/graphbinaryV1.py",
line 253, in dictify
to_extend.extend(cls.byte_format_pack(obj))
struct.error: 'i' format requires -2147483648 <= number <= 2147483647
```
In the actual project where this error was discovered I was passing a vertex
object to the `V()` method, but the underlying issue appears to be the way that
the vertex ID is being serialized. I have a graph with many more than `2^31`
vertices in it, so dealing with IDs larger than this is essential. I can work
around the problem by include the query for the vertex every time, but this is
inefficient. A better solution would be to remove this limitation.
This may be related to TINKERPOP-2363.
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