<div dir="ltr">Hi Amardeep,<div><br></div><div>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. </div><div><br></div><div>Thanks,</div><div>Andrew.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 1, 2015 at 4:52 AM, Amardeep Singh <span dir="ltr"><<a href="mailto:amardeep@techblue.co.uk" target="_blank">amardeep@techblue.co.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi,<br>
<br>
I am trying to configure<b> Openstack Sahara </b><b>Kilo</b>
release on existing <b>Openstack </b><b>Juno</b> setup. After
successful integration of services and dashboard everything works
smooth until it start creating cluster. <br>
<br>
- Create Node Group Templates for Plugin "vanilla" Hadoop Version
"2.6"<br>
- Create Cluster Template for Plugin "vanilla" Hadoop Version "2.6"<br>
- Used sahara-image-elements and created qcow image of ubuntu for
version 2.6<br>
- Register image with correct username "ubuntu"<br>
- Generate key pair and attached to cluster<br>
- Launch Cluster<br>
<br>
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 <b>sahara-all</b><b>.log</b>(attached)<br>
<br>
<b><i><small>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']<br>
<br>
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']</small></i></b><br>
<br>
I have also attached sahara.conf file. Any help will be appreciated.<br>
<br>
Thanks,<br>
Amardeep<br>
<br>
</div>
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<br></blockquote></div><br></div>