FAQ

If you have any problem during the installation of OpenQuake, please check this list before asking on IRC/ML.

java.lang.ExceptionPyRaisable: java.lang.Exception: Class XYZ not found

This is probably due to the OpenQuake jar that is missing. Try to build the jar with:

cd /to/your/openquake/dir/
ant build-openquake-jar

And run the tests suite (or the smoke test) again.

RuntimeError: Unable to start JVM at src/native/common/jp_env.cpp:54

This is probably because the max_mem parameter is set too high in openquake/java.py. Try to decrease it and run the tests suite (or the smoke test) again.

TypeError: unsupported operand type(s) for +: ‘NoneType’ and ‘str’

A more detailed stack trace:

File "/usr/lib/pymodules/python2.6/jpype/_core.py", line 96, in getDefaultJVMPath
    return _linux.getDefaultJVMPath()
File "/usr/lib/pymodules/python2.6/jpype/_linux.py", line 36, in getDefaultJVMPath
    jvm = _getJVMFromJavaHome()
File "/usr/lib/pymodules/python2.6/jpype/_linux.py", line 55, in _getJVMFromJavaHome
    if os.path.exists(java_home+"/bin/javac") :
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

This is because the JAVA_HOME environment variable is empty. Try to export it again before launching celeryd and rerun the tests suite.

RuntimeError: Unable to load DLL [/usr/java/jre1.5.0_05/lib/i386/client/libjvm.so]

A more detailed stack trace:

File "/usr/lib/pymodules/python2.6/jpype/_core.py", line 44, in startJVM
    _jpype.startup(jvm, tuple(args), True)
RuntimeError: Unable to load DLL [/usr/java/jre1.5.0_05/lib/i386/client/libjvm.so],
error = /usr/java/jre1.5.0_05/lib/i386/client/libjvm.so: cannot open shared object file:
No such file or directory at src/native/common/include/jp_platform_linux.h:45

This is because the JAVA_HOME environment variable is set up, but it is pointing to the wrong directory. Try to export it again and rerun the tests suite.

ConnectionError: Error 111 connecting localhost:6379. Connection refused.

A more detailed stack trace:

File "/usr/lib/pymodules/python2.6/redis/client.py", line 315, in _execute_command
    self.connection.send(command, self)
File "/usr/lib/pymodules/python2.6/redis/client.py", line 82, in send
    self.connect(redis_instance)
File "/usr/lib/pymodules/python2.6/redis/client.py", line 62, in connect
    raise ConnectionError(error_message)
redis.exceptions.ConnectionError: Error 111 connecting localhost:6379. Connection refused.

This is because Redis server is not running. Please look at the running OpenQuake page to learn how to start Redis.

error: [Errno 111] Connection refused

A more detailed stack trace:

File "/usr/local/lib/python2.6/dist-packages/carrot/connection.py", line 135, in connection
    self._connection = self._establish_connection()
File "/usr/local/lib/python2.6/dist-packages/carrot/connection.py", line 148, in _establish_connection
    return self.create_backend().establish_connection()
File "/usr/local/lib/python2.6/dist-packages/carrot/backends/pyamqplib.py", line 208, in establish_connection
    connect_timeout=conninfo.connect_timeout)
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/connection.py", line 125, in __init__
    self.transport = create_transport(host, connect_timeout, ssl)
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/transport.py", line 220, in create_transport
    return TCPTransport(host, connect_timeout)
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/transport.py", line 58, in __init__
    self.sock.connect((host, port))
File "", line 1, in connect
error: [Errno 111] Connection refused

This is because RabbitMQ server is not running. Please look at the running OpenQuake":https://github.com/gem/openquake/wiki/Running-OpenQuake page to learn how to start RabbitMQ.

IOError: Socket closed

A more detailed stack trace:

File "/usr/local/lib/python2.6/dist-packages/carrot/connection.py", line 148, in _establish_connection
    return self.create_backend().establish_connection()
File "/usr/local/lib/python2.6/dist-packages/carrot/backends/pyamqplib.py", line 208, in establish_connection
    connect_timeout=conninfo.connect_timeout)
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/connection.py", line 140, in __init__
    (10, 30), # tune
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/abstract_channel.py", line 89, in wait
    self.channel_id, allowed_methods)
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/connection.py", line 198, in _wait_method
    self.method_reader.read_method()
File "/usr/local/lib/python2.6/dist-packages/amqplib/client_0_8/method_framing.py", line 215, in read_method
    raise m
IOError: Socket closed

This is because RabbitMQ server is not properly configured. Please look at the Installation page to learn how to properly configure RabbitMQ.

celery.exceptions.ImproperlyConfigured: Celery needs to be configured to run celeryd.

A more detailed stack trace:

File "/usr/local/bin/celeryd", line  9, in  load_entry_point('celery==2.1.4', 'console_scripts', 'celeryd')()
File "/usr/local/lib/python2.6/dist-packages/celery/bin/celeryd.py",  line 166, in main  worker.execute_from_commandline()
File "/usr/local/lib/python2.6/dist-packages/celery/bin/base.py", line 40, in execute_from_commandline
    return self.run(*args, vars(options))
File "/usr/local/lib/python2.6/dist-packages/celery/bin/celeryd.py", line 85, in run  return Worker(kwargs).run()
File "/usr/local/lib/python2.6/dist-packages/celery/apps/worker.py",  line 98, in run self.init_loader()
File "/usr/local/lib/python2.6/dist-packages/celery/apps/worker.py",  line 147, in init_loader
    "Celery needs to be configured to run  celeryd."
celery.exceptions.ImproperlyConfigured: Celery needs to be  configured to run celeryd.

Solution:

Make you are running celeryd from the directory containing celeryconfig.py.

In some cases, the cause of this issue may be an incompatible version of python-gflags. This is indicated by the following error when trying to

import celeryconfig

in a Python console.

~/openquake$ python
Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39)
[GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information.
>>> import celeryconfig

Traceback (most recent call last):

File "", line 1, in
File "celeryconfig.py", line 11, in  from openquake import flags
File "openquake/flags.py", line 9, in  from gflags import *
File "/usr/local/lib/python2.6/dist-packages/gflags.py", line 396, in
import gflags_validators ImportError: No module named gflags_validators

Make sure you have the proper version of python-gflags installed. Check out the Installation page for more information.

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