[LIBCLOUD-105] "list_nodes" on Eucalytus forces a "500 Internal Server Error"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.5.2
• Fix Version/s: 0.5.2
• Component/s: Core

Environment

Eucalyptus 1.6, Python 2.7.1, Ubuntu 11.04

• Assignee: Unassigned
• Reporter: Richard Bross
• Created: 07/Aug/11 15:38
• Updated: 13/Aug/11 17:29
• Resolved: 13/Aug/11 17:29

Description

Note that in the debug log below, when calling "list_nodes" the "DescribeInstances" call is successful. But "list_nodes" then goes on to do an additional (and unnecessary?) "DescribeAddresse" call which causes the error.

CODE:

logfile = open('/home/user/lc.log', "a")
enable_debug(logfile)
EC2_ACCESS_ID = 'retracted'
EC2_SECRET_KEY = 'retracted'
EUCDriver = get_driver(Provider.EUCALYPTUS)
conn = EUCDriver(EC2_ACCESS_ID, secret=EC2_SECRET_KEY, host="192.168.0.170", secure=False, port=8773, path="/services/Eucalyptus")

1. This should iterate over driver types and create a generic list of nodes with required fields
   nodes = []
   nodes += conn.list_nodes()

OUTPUT:
./cloud_list_instances_lc
Traceback (most recent call last):
File "./cloud_list_instances_lc", line 77, in <module>
nodes += conn.list_nodes()
File "/usr/local/lib/python2.7/dist-packages/libcloud/compute/drivers/ec2.py", line 399, in list_nodes
nodes_elastic_ips_mappings = self.ex_describe_addresses(nodes)
File "/usr/local/lib/python2.7/dist-packages/libcloud/compute/drivers/ec2.py", line 718, in ex_describe_addresses
params=params.copy()).object
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/base.py", line 397, in request
response = self.responseCls(self.connection.getresponse())
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/base.py", line 48, in _init_
raise Exception(self.parse_error())
File "/usr/local/lib/python2.7/dist-packages/libcloud/compute/drivers/ec2.py", line 173, in parse_error
body=self.body, driver=EC2NodeDriver)
libcloud.common.types.MalformedResponseError: <MalformedResponseException in <class 'libcloud.compute.drivers.ec2.EC2NodeDriver'> 'Failed to parse XML'>: 'Failure: 500 Internal Server Error\r\n'

DEBUG LOG:

1. -------- begin 27979720 request ----------
   curl -i -X GET -H 'Host: 192.168.0.170' -H 'X-LC-Request-ID: 27979720' -H 'Content-Length: 0' -H 'User-Agent: libcloud/0.5.2 (Eucalyptus)' 'https://192.168.0.170:8773/services/Eucalyptus?SignatureVersion=2&AWSAccessKeyId=retracted&Timestamp=2011-08-07T15%3A25%3A43Z&SignatureMethod=HmacSHA256&Version=2010-08-31&Signature=k1GaQ%2FFE0zFpqvaheoe%2Fty7uK6ZMBYMhQXvnF3xwQGA%3D&Action=DescribeInstances'
2. -------- begin 27979720:27694864 response ----------
   HTTP/1.1 200 OK

Content-Length: 948

Content-Type: application/xml; charset=UTF-8

<DescribeInstancesResponse xmlns="http://ec2.amazonaws.com/doc/2010-08-31/"><requestId>e1fde092-47d6-4e3c-8fa2-02dd4d6d1236</requestId><reservationSet><item><reservationId>r-386506D4</reservationId><ownerId>admin</ownerId><groupSet><item><groupId>default</groupId></item><item><groupId>default</groupId></item></groupSet><instancesSet><item><instanceId>i-44DE06B7</instanceId><imageId>emi-7E900EF7</imageId><instanceState><code>16</code><name>running</name></instanceState><privateDnsName>172.19.1.2</privateDnsName><dnsName>192.168.0.172</dnsName><keyName/><amiLaunchIndex>0</amiLaunchIndex><productCodes/><instanceType>m1.small</instanceType><launchTime>2011-08-05T19:17:22.307Z</launchTime><placement><availabilityZone>cluster1</availabilityZone></placement><kernelId>eki-9FB013D3</kernelId><ramdiskId>eri-DCC714AF</ramdiskId><monitoring><state>false</state></monitoring></item></instancesSet></item></reservationSet></DescribeInstancesResponse>

1. -------- end 27979720:27694864 response ----------

1. -------- begin 28454992 request ----------
   curl -i -X GET -H 'Host: 192.168.0.170' -H 'X-LC-Request-ID: 28454992' -H 'Content-Length: 0' -H 'User-Agent: libcloud/0.5.2 (Eucalyptus)' 'https://192.168.0.170:8773/services/Eucalyptus?SignatureVersion=2&AWSAccessKeyId=retracted&Timestamp=2011-08-07T15%3A25%3A43Z&Filter.0.Name=instance-id&SignatureMethod=HmacSHA256&Version=2010-08-31&Signature=1xHgKxs3rgOC0by1fV73wUyylcctLoxhB4yBvaKt%2BSU%3D&Action=DescribeAddresses&Filter.0.Value.0=i-44DE06B7'
2. -------- begin 28454992:27979720 response ----------
   HTTP/1.1 500 Internal Server Error

Content-Type: text/plain; charset=UTF-8

Failure: 500 Internal Server Error

1. -------- end 28454992:27979720 response ----------