4 thoughts on “Zen Load Balancer + Eucalyptus == Open Source Load Balancer Appliance in the Cloud

  1. Rahul says:

    Thanks a lot for this manual…i was facing problem in the 16th step of the creation of the eucalyptus image…after putting in the command relating to eustore-install image it shows me an error saying no module named eu200ls image found on line 36 python….please help

  2. hey im getting an error on step 16 unable to find credentials while trying to run this cmd “eustore-install-image -t ZenLoadbalancer-x86_64.tgz -b zenloadbalancer-debian-x86_64 \
    -s “ZenLoadbalancer V2 Stable 1″ -k kvm -a x86_64
    ” can u help me resolve this error .
    This is the debugged o/p
    “root@cc:/home/eyeos# eustore-install-image -t ZenLoadbalancer-x86_64.tgz -b zenloadbalancer-debian-x86_64 -s “ZenLoadbalancer V2 Stable 1” -k kvm -a x86_64 –kernel vmlinuz-2.6.32-5-686 –ramdisk initrd.img-2.6.32-5-686 -D
    2013-04-20 15:49:29,718 InstallImage [DEBUG]:request_params: {‘ramdisk’: ‘initrd.img-2.6.32-5-686’, ‘kernel_type’: ‘kvm’, ‘description’: ‘ZenLoadbalancer V2 Stable 1’, ‘kernel’: ‘vmlinuz-2.6.32-5-686’, ‘bucket’: ‘zenloadbalancer-debian-x86_64’, ‘tarball’: ‘ZenLoadbalancer-x86_64.tgz’, ‘architecture’: ‘x86_64’, ‘dir’: ‘/tmp’}
    2013-04-20 15:49:29,718 InstallImage [DEBUG]:Retrieving credentials from metadata server.
    2013-04-20 15:49:29,720 InstallImage [ERROR]:Caught exception reading instance data
    Traceback (most recent call last):
    File “/usr/lib/python2.6/dist-packages/boto/utils.py”, line 211, in retry_url
    r = opener.open(req)
    File “/usr/lib/python2.6/urllib2.py”, line 397, in open
    response = meth(req, response)
    File “/usr/lib/python2.6/urllib2.py”, line 510, in http_response
    ‘http’, request, response, code, msg, hdrs)
    File “/usr/lib/python2.6/urllib2.py”, line 435, in error
    return self._call_chain(*args)
    File “/usr/lib/python2.6/urllib2.py”, line 369, in _call_chain
    result = func(*args)
    File “/usr/lib/python2.6/urllib2.py”, line 518, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
    HTTPError: HTTP Error 404: Not Found
    2013-04-20 15:49:29,721 InstallImage [ERROR]:Unable to read instance data, giving up
    Unable to find credentials.

  3. Ashok says:


    I want to configure the zen laod balancer as per the scenario. I have two webservers.

    webserver1.mydomain.com – both public and priate ip address with nating
    webserver1.mydomain.com – both public and priate ip address with nating
    webserver.mydomain.com – public request hits here. (virtual ip for both webservers)

    How to configre the above in the zen.

    Thanks in advance.


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