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[liuxun <1687551@xxxxxxxxxxxxxxxxxx>]

I use airflow with it's jenkins operator using python-jenkins, and I am facing the same ploblem. 
With local file on machine modified, I walk around the problem, these is the relevant code:

https://github.com/liuxhit/airflow/blob/main/airflow/providers/jenkins/operators/jenkins_job_trigger.py#L142
"""
request = Request(method='POST', url=jenkins_server.build_job_url(self.job_name, params, None))
"""

https://opendev.org/jjb/python-jenkins/src/branch/master/jenkins/__init__.py#L1349
"""
return (self._build_url(BUILD_WITH_PARAMS_JOB, locals()) +
                    '?' + urlencode(parameters))
"""

I am reading python-jenkins' developer-manual to commit a patch for this
problem.

** Changed in: python-jenkins
       Status: New => Confirmed

** Changed in: python-jenkins
     Assignee: (unassigned) => liuxun (liuxhit)

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https://bugs.launchpad.net/bugs/1687551

Title:
  "HTTP Error 414: Request-URI Too Long" while submitting a build

Status in Python Jenkins:
  Confirmed

Bug description:
  The Jenkins job I wanted to trigger was composed with multi parameters. One is a multi-lines parameters that is too long to exceed the limitation set for the url length in this request. 
   
  """
  self.jek_ins.build_job(self.job_name, self.build_vars, self.user_token)
  """

  python-jenkins-0.4.8-1.el7.noarch

  How to reproduce:
  1. pass a parameter including a very long strings to the jenkins params when calling function build_job

  Actual Result:
  HTTP Error 414: Request-URI Too Long

  Excepted result:
  Http request for triggering the build succeed even if a long string included.

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