localhost:8000 complains about "connection refused"

[Cay Horstmann]

I did a fresh install of the edX devstack, and started it with

sudo su edxapp
paver devstack lms

When I tried connecting to localhost:8000, I got the error below. What can I do to overcome that?

Thanks,

Cay

[Errno 111] Connection refused

Request Method:	GET
Request URL:	http://localhost:8000/
Django Version:	1.4.22
Exception Type:	ConnectionFailure
Exception Value:	[Errno 111] Connection refused
Exception Location:	/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pymongo/mongo_client.py in __init__, line 369
Python Executable:	/edx/app/edxapp/venvs/edxapp/bin/python
Python Version:	2.7.3
Python Path:	['.', '.', '/edx/app/edxapp/edx-platform', '/edx/app/edxapp/venvs/edxapp/src/xblock-poll', '/edx/app/edxapp/venvs/edxapp/src/edx-sga', '/edx/app/edxapp/venvs/edxapp/src/edx-user-state-client', '/edx/app/edxapp/venvs/edxapp/src/edx-reverification-block', '/edx/app/edxapp/venvs/edxapp/src/xblock-google-drive', '/edx/app/edxapp/venvs/edxapp/src/xblock-utils', '/edx/app/edxapp/venvs/edxapp/src/edx-milestones', '/edx/app/edxapp/venvs/edxapp/src/edx-search', '/edx/app/edxapp/venvs/edxapp/src/recommender-xblock', '/edx/app/edxapp/venvs/edxapp/src/edx-val', '/edx/app/edxapp/venvs/edxapp/src/oauth2-provider', '/edx/app/edxapp/venvs/edxapp/src/opaque-keys', '/edx/app/edxapp/venvs/edxapp/src/edx-submissions', '/edx/app/edxapp/venvs/edxapp/src/edx-ora2', '/edx/app/edxapp/venvs/edxapp/src/acid-xblock', '/edx/app/edxapp/venvs/edxapp/src/django-splash', '/edx/app/edxapp/venvs/edxapp/src/event-tracking', '/edx/app/edxapp/venvs/edxapp/src/js-test-tool', '/edx/app/edxapp/venvs/edxapp/src/codejail', '/edx/app/edxapp/venvs/edxapp/src/xblock', '/edx/app/edxapp/venvs/edxapp/src/ccx-keys', '/edx/app/edxapp/venvs/edxapp/src/parse-rest', '/edx/app/edxapp/venvs/edxapp/src/djpyfs', '/edx/app/edxapp/venvs/edxapp/src/edx-jsme', '/edx/app/edxapp/venvs/edxapp/src/pygeoip', '/edx/app/edxapp/venvs/edxapp/src/zendesk', '/edx/app/edxapp/venvs/edxapp/src/pystache-custom', '/edx/app/edxapp/venvs/edxapp/src/mongodb-proxy', '/edx/app/edxapp/venvs/edxapp/src/django-oauth2-provider', '/edx/app/edxapp/venvs/edxapp/src/django-wiki', '/edx/app/edxapp/venvs/edxapp/src/django-pipeline', '/edx/app/edxapp/edx-platform/common/lib/xmodule', '/edx/app/edxapp/edx-platform/common/lib/symmath', '/edx/app/edxapp/edx-platform/common/lib/sandbox-packages', '/edx/app/edxapp/edx-platform/common/lib/safe_lxml', '/edx/app/edxapp/edx-platform/common/lib/dogstats', '/edx/app/edxapp/edx-platform/common/lib/chem', '/edx/app/edxapp/edx-platform/common/lib/capa', '/edx/app/edxapp/edx-platform/common/lib/calc', '/edx/app/edxapp/venvs/edxapp/src/edx-organizations', '/edx/app/edxapp/venvs/edxapp/lib/python2.7', '/edx/app/edxapp/venvs/edxapp/lib/python2.7/plat-linux2', '/edx/app/edxapp/venvs/edxapp/lib/python2.7/lib-tk', '/edx/app/edxapp/venvs/edxapp/lib/python2.7/lib-old', '/edx/app/edxapp/venvs/edxapp/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages', '/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/newrelic-2.46.0.37', '/edx/app/edxapp/edx-platform', Path(u'/edx/app/edxapp/edx-platform'), Path(u'/edx/app/edxapp/edx-platform/lms/djangoapps'), Path(u'/edx/app/edxapp/edx-platform/common/djangoapps')]

[frank]

hi cay,

   looks like the connection from lms to mongodb could not be established. make sure mongod is running.

   1. vagrant ssh

   2. sudo mongod --dbpath=/edx/var/mongo/mongodb

[Eslam Mohamed Diaa]

Hello Cay,

Yes you should repair mongo and restart it

After vagrant ssh
sudo -i   >> to login as root
mongod  --repair -f /etc/mongod.conf
nohup mongod -f /etc/mongod.conf &

that's it ..

[Cay Horstmann]

It works!

Thanks,

Cay

PS. This seems like a bug. It happened to myself and my graduate student. We were both doing a fresh install. Is it worth reporting? Where?

[David Baumgold]

Here’s the documentation for how to file bug reports: https://openedx.atlassian.net/wiki/display/SUST/How+to+File+a+Quality+Bug+Report

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[gaurav k]

Hi David,

Edx cms re index not working - showing error - There were errors reindexing course. 

Need help .

Error  log -

OpenEDXv2 [service_variant=cms][elasticsearch][env:sandbox] WARNING [OpenEDXv2  42543] [base.py:82] - HEAD http://locahost:9200/courseware_index [status:N/A request:0.027s]

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 78, in perform_request

    response = self.pool.urlopen(method, url, body, retries=False, headers=self.headers, **kw)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 591, in urlopen

    raise MaxRetryError(self, url, e)

MaxRetryError: HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][urllib3.connectionpool][env:sandbox] INFO [OpenEDXv2  42543] [connectionpool.py:257] - Starting new HTTP connection (2): locahost

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][elasticsearch][env:sandbox] WARNING [OpenEDXv2  42543] [base.py:82] - HEAD http://locahost:9200/courseware_index [status:N/A request:0.003s]

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 78, in perform_request

    response = self.pool.urlopen(method, url, body, retries=False, headers=self.headers, **kw)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 591, in urlopen

    raise MaxRetryError(self, url, e)

MaxRetryError: HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][urllib3.connectionpool][env:sandbox] INFO [OpenEDXv2  42543] [connectionpool.py:257] - Starting new HTTP connection (3): locahost

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][elasticsearch][env:sandbox] WARNING [OpenEDXv2  42543] [base.py:82] - HEAD http://locahost:9200/courseware_index [status:N/A request:0.003s]

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 78, in perform_request

    response = self.pool.urlopen(method, url, body, retries=False, headers=self.headers, **kw)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 591, in urlopen

    raise MaxRetryError(self, url, e)

MaxRetryError: HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][urllib3.connectionpool][env:sandbox] INFO [OpenEDXv2  42543] [connectionpool.py:257] - Starting new HTTP connection (4): locahost

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][elasticsearch][env:sandbox] WARNING [OpenEDXv2  42543] [base.py:82] - HEAD http://locahost:9200/courseware_index [status:N/A request:0.003s]

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 78, in perform_request

    response = self.pool.urlopen(method, url, body, retries=False, headers=self.headers, **kw)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/urllib3/connectionpool.py", line 591, in urlopen

    raise MaxRetryError(self, url, e)

MaxRetryError: HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][root][env:sandbox] ERROR [OpenEDXv2  42543] [exceptions.py:17] - Uncaught exception from <class 'django.core.handlers.wsgi.WSGIHandler'>

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response

    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/utils/decorators.py", line 145, in inner

    return func(*args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py", line 22, in _wrapped_view

    return view_func(request, *args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view

    response = view_func(request, *args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/views/decorators/http.py", line 45, in inner

    return func(request, *args, **kwargs)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/views/course.py", line 317, in course_search_index_handler

    reindex_course_and_check_access(course_key, request.user)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/views/course.py", line 133, in reindex_course_and_check_access

    return CoursewareSearchIndexer.do_course_reindex(modulestore(), course_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 377, in do_course_reindex

    return cls._do_reindex(modulestore, course_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 284, in _do_reindex

    indexed_count = cls.index(modulestore, structure_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 139, in index

    searcher = SearchEngine.get_search_engine(cls.INDEX_NAME)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/search/search_engine_base.py", line 50, in get_search_engine

    return search_engine_class(index=index) if search_engine_class else None

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/search/elastic.py", line 275, in __init__

    if not self._es.indices.exists(index=self.index_name):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/client/utils.py", line 69, in _wrapped

    return func(*args, params=params, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/client/indices.py", line 224, in exists

    params=params)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/transport.py", line 307, in perform_request

    status, headers, data = connection.perform_request(method, url, params, body, ignore=ignore, timeout=timeout)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 89, in perform_request

    raise ConnectionError('N/A', str(e), e)

ConnectionError: ConnectionError(HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)) caused by: MaxRetryError(HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known))

Aug  4 14:58:48 OpenEDXv2 [service_variant=cms][django.request][env:sandbox] ERROR [OpenEDXv2  42543] [base.py:256] - Internal Server Error: /course/course-v1:Microsoft+DAT206x+2017/search_reindex

Traceback (most recent call last):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response

    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/utils/decorators.py", line 145, in inner

    return func(*args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py", line 22, in _wrapped_view

    return view_func(request, *args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view

    response = view_func(request, *args, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/views/decorators/http.py", line 45, in inner

    return func(request, *args, **kwargs)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/views/course.py", line 317, in course_search_index_handler

    reindex_course_and_check_access(course_key, request.user)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/views/course.py", line 133, in reindex_course_and_check_access

    return CoursewareSearchIndexer.do_course_reindex(modulestore(), course_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 377, in do_course_reindex

    return cls._do_reindex(modulestore, course_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 284, in _do_reindex

    indexed_count = cls.index(modulestore, structure_key)

  File "/edx/app/edxapp/edx-platform/cms/djangoapps/contentstore/courseware_index.py", line 139, in index

    searcher = SearchEngine.get_search_engine(cls.INDEX_NAME)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/search/search_engine_base.py", line 50, in get_search_engine

    return search_engine_class(index=index) if search_engine_class else None

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/search/elastic.py", line 275, in __init__

    if not self._es.indices.exists(index=self.index_name):

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/client/utils.py", line 69, in _wrapped

    return func(*args, params=params, **kwargs)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/client/indices.py", line 224, in exists

    params=params)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/transport.py", line 307, in perform_request

    status, headers, data = connection.perform_request(method, url, params, body, ignore=ignore, timeout=timeout)

  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 89, in perform_request

    raise ConnectionError('N/A', str(e), e)

ConnectionError: ConnectionError(HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)) caused by: MaxRetryError(HTTPConnectionPool(host=u'locahost', port=9200): Max retries exceeded with url: /courseware_index (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known))