Accessing dockerized neo4j using neo4j vs py2neo-CodePudding

I have setup neo4j to run in docker and exposed the http and bolt ports (7474, 7687).

This is the setup I used :

docker run \
    --name testneo4j \
    -p7474:7474 -p7687:7687 \
    -d \
    -v `pwd`/neo4j/data:/data \
    -v `pwd`/neo4j/logs:/logs \
    -v `pwd`/import:/var/lib/neo4j/import \
    -v `pwd`/neo4j/plugins:/plugins \
    --env NEO4J_AUTH=neo4j/XXXXXXX \

I am now trying to connect to the graph database using Python

Using the py2neo library works fine:

In [1]: from py2neo import Graph

In [2]: graph=Graph('bolt://localhost:7687',user="neo4j", password="XXXXXXX")
   ...: graph.run('MATCH(x) RETURN COUNT(x)')

 COUNT(x)
----------
        0

But when I use the neo4j module:

from neo4j import GraphDatabase, TRUST_ALL_CERTIFICATES
trust=TRUST_ALL_CERTIFICATES

neo4j_user="neo4j"
neo4j_passwd="XXXXXXX"
uri="bolt://localhost:7687"
driver = GraphDatabase.driver(uri, 
                       auth=(neo4j_user, neo4j_passwd),
                       encrypted=False, trust=trust)

I get this error:


File ~/local/anaconda3/lib/python3.8/site-packages/neo4j/__init__.py:120, in GraphDatabase.driver(cls, uri, **config)
    114 @classmethod
    115 def driver(cls, uri, **config):
    116     """ Create a :class:`.Driver` object. Calling this method provides
    117     identical functionality to constructing a :class:`.Driver` or
    118     :class:`.Driver` subclass instance directly.
    119     """
--> 120     return Driver(uri, **config)

File ~/local/anaconda3/lib/python3.8/site-packages/neo4j/__init__.py:161, in Driver.__new__(cls, uri, **config)
    159 for subclass in Driver.__subclasses__():
    160     if parsed_scheme in subclass.uri_schemes:
--> 161         return subclass(uri, **config)
    162 raise ValueError("URI scheme %r not supported" % parsed.scheme)

File ~/local/anaconda3/lib/python3.8/site-packages/neo4j/__init__.py:235, in DirectDriver.__new__(cls, uri, **config)
    232     return connect(address, **dict(config, **kwargs))
    234 pool = ConnectionPool(connector, instance.address, **config)
--> 235 pool.release(pool.acquire())
    236 instance._pool = pool
    237 instance._max_retry_time = config.get("max_retry_time", default_config["max_retry_time"])

File ~/local/anaconda3/lib/python3.8/site-packages/neobolt/direct.py:715, in ConnectionPool.acquire(self, access_mode)
    714 def acquire(self, access_mode=None):
--> 715     return self.acquire_direct(self.address)

File ~/local/anaconda3/lib/python3.8/site-packages/neobolt/direct.py:608, in AbstractConnectionPool.acquire_direct(self, address)
    606 if can_create_new_connection:
    607     try:
--> 608         connection = self.connector(address, error_handler=self.connection_error_handler)
    609     except ServiceUnavailable:
    610         self.remove(address)

File ~/local/anaconda3/lib/python3.8/site-packages/neo4j/__init__.py:232, in DirectDriver.__new__.<locals>.connector(address, **kwargs)
    231 def connector(address, **kwargs):
--> 232     return connect(address, **dict(config, **kwargs))

File ~/local/anaconda3/lib/python3.8/site-packages/neobolt/direct.py:972, in connect(address, **config)
    970     raise ServiceUnavailable("Failed to resolve addresses for %s" % address)
    971 else:
--> 972     raise last_error

File ~/local/anaconda3/lib/python3.8/site-packages/neobolt/direct.py:964, in connect(address, **config)
    962     s = _connect(resolved_address, **config)
    963     s, der_encoded_server_certificate = _secure(s, host, security_plan.ssl_context, **config)
--> 964     connection = _handshake(s, address, der_encoded_server_certificate, **config)
    965 except Exception as error:
    966     last_error = error

File ~/local/anaconda3/lib/python3.8/site-packages/neobolt/direct.py:920, in _handshake(s, resolved_address, der_encoded_server_certificate, **config)
    918 if agreed_version == 0:
    919     log_debug("[#X]  C: <CLOSE>", local_port)
--> 920     s.shutdown(SHUT_RDWR)
    921     s.close()
    922 elif agreed_version in (1, 2):

OSError: [Errno 57] Socket is not connected

Does anyone know why the former works but the latter doesn't?

CodePudding user response：

You're not using the same password.

CodePudding user response：

It turns out that the problem was I was using an older version of the neo4j library (1.7.6). I did a pip install neo4j --upgrade to version 5.5 and I am no longer getting any errors.