Hi Amardeep, It looks like Sahara engine tries to run "_sahara-subprocess" executable of other version. Sahara uses real subprocesses to gain all benefits of multithreading (greenthreads are not enough). It assumes that there is "_sahara-subprocess" executable in the same folder with sahara engine. They must be the same version.
Thanks, Andrew. On Mon, Jun 1, 2015 at 4:52 AM, Amardeep Singh <amard...@techblue.co.uk> wrote: > Hi, > > I am trying to configure* Openstack Sahara **Kilo* release on existing > *Openstack > **Juno* setup. After successful integration of services and dashboard > everything works smooth until it start creating cluster. > > - Create Node Group Templates for Plugin "vanilla" Hadoop Version "2.6" > - Create Cluster Template for Plugin "vanilla" Hadoop Version "2.6" > - Used sahara-image-elements and created qcow image of ubuntu for version > 2.6 > - Register image with correct username "ubuntu" > - Generate key pair and attached to cluster > - Launch Cluster > > When cluster launches it creates instances with networking enabled. I can > ping the nodes and ssh into them using keypair generated, but for some > reason controller is unable to run ssh commands. The following error comes > in *sahara-all**.log*(attached) > > > > *2015-06-01 11:33:37.022 814 ERROR root [-] Original exception being > dropped: ['Traceback (most recent call last):\n', ' File > "/opt/openstack/current/sahara/local/lib/python2.7/site-packages/sahara/utils/ssh_remote.py", > line 630, in _run\n self._get_conn_params())\n', ' File > "/opt/openstack/current/sahara/local/lib/python2.7/site-packages/sahara/utils/procutils.py", > line 51, in run_in_subprocess\n result = pickle.load(proc.stdout)\n', ' > File "/usr/lib/python2.7/pickle.py", line 1378, in load\n return > Unpickler(file).load()\n', ' File "/usr/lib/python2.7/pickle.py", line > 858, in load\n dispatch[key](self)\n', ' File > "/usr/lib/python2.7/pickle.py", line 880, in load_eof\n raise > EOFError\n', 'EOFError\n'] 2015-06-01 11:33:37.023 814 ERROR root [-] > Original exception being dropped: ['Traceback (most recent call last):\n', > ' File > "/opt/openstack/current/sahara/local/lib/python2.7/site-packages/sahara/utils/ssh_remote.py", > line 630, in _run\n self._get_conn_params())\n', ' File > "/opt/openstack/current/sahara/local/lib/python2.7/site-packages/sahara/utils/procutils.py", > line 51, in run_in_subprocess\n result = pickle.load(proc.stdout)\n', ' > File "/usr/lib/python2.7/pickle.py", line 1378, in load\n return > Unpickler(file).load()\n', ' File "/usr/lib/python2.7/pickle.py", line > 858, in load\n dispatch[key](self)\n', ' File > "/usr/lib/python2.7/pickle.py", line 880, in load_eof\n raise > EOFError\n', 'EOFError\n']* > > I have also attached sahara.conf file. Any help will be appreciated. > > Thanks, > Amardeep > > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >
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