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Handle BigQuery 503 error #1938

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krmettu wants to merge 4 commits into from
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Handle BigQuery 503 error #1938

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7dec320
Handle BigQuery 503 error
Dec 8, 2016
70f46dd
typo in the error class name
Dec 9, 2016
542fc50
Fix comments from code review
Dec 13, 2016
29587cb
bug fix - make sure jobs.get in inside try catch loop
Dec 13, 2016
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37 changes: 24 additions & 13 deletions airflow/contrib/hooks/bigquery_hook.py
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Original file line number Diff line number Diff line change
Expand Up @@ -470,21 +470,32 @@ def run_with_configuration(self, configuration):
.insert(projectId=self.project_id, body=job_data) \
.execute()
job_id = query_reply['jobReference']['jobId']
job = jobs.get(projectId=self.project_id, jobId=job_id).execute()

# Wait for query to finish.
while not job['status']['state'] == 'DONE':
logging.info('Waiting for job to complete: %s, %s', self.project_id, job_id)
time.sleep(5)
job = jobs.get(projectId=self.project_id, jobId=job_id).execute()

# Check if job had errors.
if 'errorResult' in job['status']:
raise Exception(
'BigQuery job failed. Final error was: {}. The job was: {}'.format(
job['status']['errorResult'], job
)
)
keep_polling_job = True
while (keep_polling_job):
try:
job = jobs.get(projectId=self.project_id, jobId=job_id).execute()
if (job['status']['state'] == 'DONE'):
keep_polling_job = False
# Check if job had errors.
if 'errorResult' in job['status']:
raise Exception(
'BigQuery job failed. Final error was: {}. The job was: {}'.format(
job['status']['errorResult'], job
)
)
else:
logging.info('Waiting for job to complete : %s, %s', self.project_id, job_id)
time.sleep(5)

except HttpError, err:
if err.code in [500, 503]:
logging.info('%s: Retryable error, waiting for job to complete: %s', err.code, job_id)
time.sleep(5)
else:
raise Exception(
'BigQuery job status check faild. Final error was: %s', err.code)

return job_id

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