Following the steps to configure the titan srever
bin/titan.sh
Forking Cassandra...
Running `nodetool statusthrift`... OK (returned exit status 0 and printed string "running").
Forking Elasticsearch...
Connecting to Elasticsearch (127.0.0.1:9300)... OK (connected to 127.0.0.1:9300).
Forking Gremlin-Server...
Connecting to Gremlin-Server (127.0.0.1:8182)... OK (connected to 127.0.0.1:8182).
Run gremlin.sh to connect.
The server started perfectly but when i am connecting with python and then run the script the error which i got mentioned below
Traceback (most recent call last):
File "/home/admin-12/Documents/bitbucket/ecodrone/ecodrone/GremlinConnector.py", line 28, in <module>
data = (execute_query("""g.V()"""))
File "/home/admin-12/Documents/bitbucket/ecodrone/ecodrone/GremlinConnector.py", line 22, in execute_query
results = future_results.result()
File "/usr/lib/python3.6/concurrent/futures/_base.py", line 432, in result
return self.__get_result()
File "/usr/lib/python3.6/concurrent/futures/_base.py", line 384, in __get_result
raise self._exception
File "/home/admin-12/.local/lib/python3.6/site-packages/gremlin_python/driver/resultset.py", line 81, in cb
f.result()
File "/usr/lib/python3.6/concurrent/futures/_base.py", line 425, in result
return self.__get_result()
File "/usr/lib/python3.6/concurrent/futures/_base.py", line 384, in __get_result
raise self._exception
File "/usr/lib/python3.6/concurrent/futures/thread.py", line 56, in run
result = self.fn(*self.args, **self.kwargs)
File "/home/admin-12/.local/lib/python3.6/site-packages/gremlin_python/driver/connection.py", line 77, in _receive
self._protocol.data_received(data, self._results)
File "/home/admin-12/.local/lib/python3.6/site-packages/gremlin_python/driver/protocol.py", line 71, in data_received
result_set = results_dict[request_id]
KeyError: None
versioning i am using
titan - 1.0.0
gremlin-python - 3.3.2
apache-tinkerpop-gremlin-server-3.3.1
Titan supports some an extremely old version of TinkerPop and I'm sure you'll find some incompatibility there if you try to use gremlin-python 3.3.2. As Titan is no longer supported, I suggest you upgrade to JanusGraph, a more current and maintained version of Titan.
Related
We get the following error when we try to push backup using wal-e:
2020-07-16T21:18:55Z <Greenlet at 0x7f2a59fadc48: <wal_e.worker.upload.PartitionUploader object at 0x7f2a59f96cc0>([ExtendedTarInfo(submitted_path='/var/lib/postgres)> failed with PermissionError
wal_e.operator.backup WARNING MSG: blocking on sending WAL segments
DETAIL: The backup was not completed successfully, but we have to wait anyway. See README: TODO about pg_cancel_backup
STRUCTURED: time=2020-07-16T21:18:55.651073-00 pid=19697
wal_e.main CRITICAL MSG: An unprocessed exception has avoided all error handling
DETAIL: Traceback (most recent call last):
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/operator/backup.py", line 197, in database_backup
**kwargs)
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/operator/backup.py", line 500, in _upload_pg_cluster_dir
pool.put(tpart)
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/worker/upload_pool.py", line 108, in put
self._wait()
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/worker/upload_pool.py", line 65, in _wait
raise val
File "src/gevent/greenlet.py", line 766, in gevent._greenlet.Greenlet.run
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/worker/upload.py", line 96, in __call__
gpg_key=self.gpg_key) as pl:
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/pipeline.py", line 92, in __enter__
self.stdin = pipebuf.NonBlockBufferedWriter(stdin)
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/pipebuf.py", line 225, in __init__
_setup_fd(self._fd)
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/pipebuf.py", line 62, in _setup_fd
set_buf_size(fd)
File "/var/lib/postgresql/virtualenvs/wal-e/lib/python3.5/site-packages/wal_e/pipebuf.py", line 53, in set_buf_size
fcntl.fcntl(fd, fcntl.F_SETPIPE_SZ, OS_PIPE_SZ)
PermissionError: [Errno 1] Operation not permitted
It's not clear why fcntl call may lead to PermissionError.
PostgreSQL version: 9.6, Python: 3.5, Wal-e : 1.1.1 (tried also 1.0.3 and 1.1.0).
It was working previously and stopped working at some point (without any noticeable changes).
Well, I'm late to the game. See https://github.com/wal-e/wal-e/issues/270
I've worked around it by patching wal-e to not set this.
I'm getting what appears to be a version mismatch error from client.connect() when using what I believe to be the most recent versions of pyorient and the orientdb server
Protocol version 37 is not supported yet by this client.
Is there a more up-to-date version of pyclient available?
here's the test script
#!/usr/bin/env python
import pyorient
client = pyorient.OrientDB( "localhost", 2424 )
session_id = client.connect( "root", "password" )
Here's the full traceback
Traceback (most recent call last):
File "./test1.py", line 7, in <module>
session_id = client.connect( "root", "D1sOri3nted" )
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/orient.py", line 325, in connect
return self.get_message("ConnectMessage") \
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/orient.py", line 540, in get_message
message_instance = _Message(self._connection)\
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/messages/connection.py", line 17, in __init__
super( ConnectMessage, self ).__init__(_orient_socket)
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/messages/base.py", line 24, in __init__
sock.get_connection()
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/orient.py", line 78, in get_connection
self.connect()
File "~/.local/lib/python2.7/site-packages/pyorient-1.5.5-py2.7.egg/pyorient/orient.py", line 103, in connect
" is not supported yet by this client.", [])
pyorient.exceptions.PyOrientWrongProtocolVersionException: Protocol version 37 is not supported yet by this client.
I'm using the pyorient version from https://github.com/orientechnologies/pyorient
The server comes from the distributed docker image.
I'm uncertain of how to get the server version, but from within the docker container the console reports v3.0.1
Thanks in advance for any help or advice on this!
I am using the latest master branch of the git repo https://github.com/celery/librabbitmq and installing librabbitmq==2.0.0 for Python 3.6 by following the instructions in the readme
Using the development version
You can clone the repository by doing the following:
$ git clone git://github.com/celery/librabbitmq.git
Then install it by doing the following:
$ cd librabbitmq
$ make install # or make develop
This works fine (after installing certain binaries for c compliation in the OS), but when I then make a small a+b add task and call it with add.delay(2,2) it fails with the following error. I looked up and saw that Celery 4 uses json as serializer, so clearly it is not because if pickle serialization
Changing from librabbitmq to pyamqp broker works normally
Same exact situation in both MacOS and Ubuntu 16
[2018-04-30 23:40:02,956: CRITICAL/MainProcess] Unrecoverable error:
SystemError(' returned a result with an error set',) Traceback (most
recent call last): File
"/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/kombu/messaging.py",
line 624, in _receive_callback
return on_m(message) if on_m else self.receive(decoded, message) File
"/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/consumer/consumer.py",
line 570, in on_task_received
callbacks, File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/strategy.py",
line 145, in task_message_handler
handle(req) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/worker.py",
line 221, in _process_task_sem
return self._quick_acquire(self._process_task, req) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/kombu/async/semaphore.py",
line 62, in acquire
callback(*partial_args, **partial_kwargs) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/worker.py",
line 226, in _process_task
req.execute_using_pool(self.pool) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/request.py",
line 531, in execute_using_pool
correlation_id=task_id, File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/concurrency/base.py",
line 155, in apply_async
**options) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/billiard/pool.py",
line 1486, in apply_async
self._quick_put((TASK, (result._job, None, func, args, kwds))) File
"/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/concurrency/asynpool.py",
line 813, in send_job
body = dumps(tup, protocol=protocol) TypeError: can't pickle memoryview objects
The above exception was the direct cause of the following exception:
Traceback (most recent call last): File
"/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/worker.py",
line 203, in start
self.blueprint.start(self) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/bootsteps.py",
line 119, in start
step.start(parent) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/bootsteps.py",
line 370, in start
return self.obj.start() File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/consumer/consumer.py",
line 320, in start
blueprint.start(self) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/bootsteps.py",
line 119, in start
step.start(parent) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/consumer/consumer.py",
line 596, in start
c.loop(*c.loop_args()) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/celery/worker/loops.py",
line 88, in asynloop
next(loop) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/kombu/async/hub.py",
line 354, in create_loop
cb(*cbargs) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/kombu/transport/base.py",
line 236, in on_readable
reader(loop) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/kombu/transport/base.py",
line 218, in _read
drain_events(timeout=0) File "/Users/somghosh/.virtualenvs/ctdb/lib/python3.6/site-packages/librabbitmq-2.0.0-py3.6-macosx-10.6-intel.egg/librabbitmq/init.py",
line 227, in drain_events
self._basic_recv(timeout) SystemError: returned a result with an error set
This library is not recommended to use as rabbitmq broker with celery. Instead please try py-amqp. this is more maintained and less buggy.
I'm upgrating from version 2.4 to version 2.6 using the documentation link
I'm getting the following paster error when executing the paster command
paster db upgrade -c /etc/ckan/default/production.ini
Traceback (most recent call last):
File "/usr/lib/ckan/default/bin/paster", line 7, in
from paste.script.command import run
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 54, in
dist = pkg_resources.get_distribution('PasteScript')
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 330, in get_distribution
if isinstance(dist,Requirement): dist = get_provider(dist)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 209, in get_provider
return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 686, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 584, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: PasteScript
Any idea?
It looks like you didn't run the 'pip install' step (step 3)with an activated virtual environment. All these commands should be run with an activated virtual environment (step 1) so don't forget to do that again if you start a new terminal/shell.
I always got the error below when I try to run mongo-connector with neo4j doc manager. I also tried with a config file as in https://github.com/mongodb-labs/mongo-connector/blob/master/config.json
Where is the problem?
mongo-connector -m localhost:27017 -t http://localhost:7474/db/data -d neo4j_doc_manager
No handlers could be found for logger "mongo_connector.util"
Traceback (most recent call last):
File "/usr/bin/mongo-connector", line 11, in <module>
sys.exit(main())
File "/usr/lib/python2.6/site-packages/mongo_connector/util.py", line 85, in wrapped
func(*args, **kwargs)
File "/usr/lib/python2.6/site-packages/mongo_connector/connector.py", line 1041, in main
conf.parse_args()
File "/usr/lib/python2.6/site-packages/mongo_connector/config.py", line 118, in parse_args
option, dict((k, values.get(k)) for k in option.cli_names))
File "/usr/lib/python2.6/site-packages/mongo_connector/connector.py", line 824, in apply_doc_managers
module = import_dm_by_name(dm['docManager'])
File "/usr/lib/python2.6/site-packages/mongo_connector/connector.py", line 803, in import_dm_by_name
module = __import__(full_name, fromlist=(name,))
File "/usr/lib/python2.6/site-packages/mongo_connector/doc_managers/neo4j_doc_manager.py", line 16, in <module>
from py2neo import Graph, authenticate
File "/usr/lib/python2.6/site-packages/py2neo/__init__.py", line 28, in <module>
from py2neo.database import *
File "/usr/lib/python2.6/site-packages/py2neo/database/__init__.py", line 65
parameters = {k: v for k, v in parameters.items() if k not in presub_parameters}
It looks like you are using Python 2.6. I'm not sure if that version is officially supported for this project. I would suggest upgrading to Python 2.7 or preferably 3.4 and trying to reproduce.