Fix proposed to branch: master
Review: https://review.openstack.org/572179
** Changed in: python-jenkins
Status: New => In Progress
** Changed in: python-jenkins
Assignee: (unassigned) => Dennis Dmitriev (ddmitriev)
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https://bugs.launchpad.net/bugs/1775047
Title:
build_job() is failing with "... empty response" exception when
Jenkins is behind haproxy where disabled keep_alive
Status in Python Jenkins:
In Progress
Bug description:
Jenkins supports keep_alive http option, and when
JenkinsClient:build_job() is called, normally the response contains
the 'content-length' header, for example:
ipdb> response.status_code
201
ipdb> response.headers
{'Date': 'Mon, 04 Jun 2018 11:52:00 GMT', 'Content-Length': '0',
'Location': 'http://10.70.0.15:8081/queue/item/11/', 'X-Content-Type-Options':
'nosniff', 'Server': 'Jetty(9.4.z-SNAPSHOT)'}
But if Jenkins master is behind HAProxy with enabled 'option
httpclose', which disables keep_alive, the response doesn't contain
'content-length' header:
ipdb> response.status_code
201
ipdb> response.headers
{'Date': 'Mon, 04 Jun 2018 11:55:36 GMT', 'Connection': 'close',
'Location': 'http://10.60.0.90:8081/queue/item/16/', 'X-Content-Type-Options':
'nosniff', 'Server': 'Jetty(9.4.z-SNAPSHOT)'}
Other fields that are checked in JenkisClient:_response_handler() are empty
in both cases:
ipdb> response.content
''
ipdb> response.text
u''
As the result: JenkinsClient raises an exception like:
File ".../local/lib/python2.7/site-packages/jenkins/__init__.py", line
1280, in build_job
'POST', self.build_job_url(name, parameters, token)))
File ".../lib/python2.7/site-packages/jenkins/__init__.py", line 565, in
jenkins_request
self._request(req))
File ".../lib/python2.7/site-packages/jenkins/__init__.py", line 523, in
_response_handler
"empty response" % self.server)
jenkins.EmptyResponseException: Error communicating with
server[http://10.60.0.90:8081/]: empty response
However, the response is valid because the meaningful part of the
response is the header 'Location'.
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