cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Tyler Hobbs <ty...@datastax.com>
Subject Re: Connection issue in Cassandra
Date Wed, 25 Jul 2012 17:13:13 GMT
That's a pretty old version of pycassa; it was release before 0.7.0 came
out.  I suggest upgrading.

It's possible this was caused by an old bug, but in general, this indicates
that you have more threads trying to use the ConnectionPool concurrently
than there are connections.

On Wed, Jul 25, 2012 at 3:30 AM, Adeel Akbar
<adeel.akbar@panasiangroup.com>wrote:

>  Hi,
>
> I have created 2 node cluster and use with application. My application
> unable to connect with database. Please find below logs;
>
>  NoConnectionAvailable at /
>
> ConnectionPool limit of size 2 overflow 2 reached, unable to obtain connection after
30 seconds
>
>    Request Method: GET  Request URL: http://172.16.100.131/  Django
> Version: 1.4  Exception Type: NoConnectionAvailable  Exception Value:
>
> ConnectionPool limit of size 2 overflow 2 reached, unable to obtain connection after
30 seconds
>
>   Exception Location: /usr/local/lib/python2.6/site-packages/pycassa-1.0.8-py2.6.egg/pycassa/pool.py
> in get, line 738  Python Executable: /usr/local/bin/python  Python
> Version: 2.6.4  Python Path:
>
> ['/var/www/bs_ping',
>  '/usr/local/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/amqplib-0.6.1-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/BeautifulSoup-3.1.0.1-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/python_dateutil-1.4.1-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/feedparser-4.1-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/python_twitter-0.6-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/simplejson-2.0.9-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/txAMQP-0.3-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/zope.interface-3.5.2-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/UnicodeUtils-0.3.2-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/pytz-2009p-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/ScriptUtils-0.5.5-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/MySQL_python-1.2.3c1-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/python_memcached-1.44-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/coverage-3.2b1-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/flup-1.0.3.dev_20091027-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/oauth-1.0.1-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/pyOpenSSL-0.10-py2.6-linux-i686.egg',
>  '/usr/local/lib/python2.6/site-packages/pycassa-1.0.8-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/wadofstuff_django_serializers-1.1.0-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/jsonpickle-0.4.0-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/django_compressor-1.1.2-py2.6.egg',
>  '/usr/local/lib/python2.6/site-packages/django_appconf-0.5-py2.6.egg',
>  '/usr/local/lib/python26.zip',
>  '/usr/local/lib/python2.6',
>  '/usr/local/lib/python2.6/plat-linux2',
>  '/usr/local/lib/python2.6/lib-tk',
>  '/usr/local/lib/python2.6/lib-old',
>  '/usr/local/lib/python2.6/lib-dynload',
>  '/usr/local/lib/python2.6/site-packages',
>  '/usr/local/lib/python2.6/site-packages/PIL',
>  '/var/www/bs_ping/',
>  '/var/www']
>
>   Server time: Wed, 25 Jul 2012 13:17:33 +0500
> --
>
>
> Thanks & Regards
>
> *Adeel** Akbar*
>



-- 
Tyler Hobbs
DataStax <http://datastax.com/>

Mime
View raw message