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8303fe23c5
ensure high_value_tasks has a default value when we fail to get data from treeherder/seta. Differential Revision: https://phabricator.services.mozilla.com/D27445 --HG-- extra : moz-landing-system : lando
263 lines
12 KiB
Python
263 lines
12 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import absolute_import, print_function, unicode_literals
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import json
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import logging
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import requests
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from collections import defaultdict
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from redo import retry
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from requests import exceptions
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import attr
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logger = logging.getLogger(__name__)
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# It's a list of project name which SETA is useful on
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SETA_PROJECTS = ['mozilla-inbound', 'autoland']
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PROJECT_SCHEDULE_ALL_EVERY_PUSHES = {'mozilla-inbound': 5, 'autoland': 5}
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PROJECT_SCHEDULE_ALL_EVERY_MINUTES = {'mozilla-inbound': 60, 'autoland': 60}
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SETA_HIGH_PRIORITY = 1
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SETA_LOW_PRIORITY = 5
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SETA_ENDPOINT = "https://treeherder.mozilla.org/api/project/%s/seta/" \
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"job-priorities/?build_system_type=%s&priority=%s"
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PUSH_ENDPOINT = "https://hg.mozilla.org/integration/%s/json-pushes/?startID=%d&endID=%d"
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@attr.s(frozen=True)
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class SETA(object):
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"""
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Interface to the SETA service, which defines low-value tasks that can be optimized out
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of the taskgraph.
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"""
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# cached low value tasks, by project
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low_value_tasks = attr.ib(factory=dict, init=False)
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low_value_bb_tasks = attr.ib(factory=dict, init=False)
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# cached push dates by project
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push_dates = attr.ib(factory=lambda: defaultdict(dict), init=False)
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# cached push_ids that failed to retrieve datetime for
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failed_json_push_calls = attr.ib(factory=list, init=False)
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def _get_task_string(self, task_tuple):
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# convert task tuple to single task string, so the task label sent in can match
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# remove any empty parts of the tuple
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task_tuple = [x for x in task_tuple if len(x) != 0]
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if len(task_tuple) == 0:
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return ''
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if len(task_tuple) != 3:
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return ' '.join(task_tuple)
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return 'test-%s/%s-%s' % (task_tuple[0], task_tuple[1], task_tuple[2])
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def query_low_value_tasks(self, project):
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# Request the set of low value tasks from the SETA service. Low value
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# tasks will be optimized out of the task graph.
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low_value_tasks = []
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# we want to get low priority taskcluster jobs
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url_low = SETA_ENDPOINT % (project, 'taskcluster', SETA_LOW_PRIORITY)
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url_high = SETA_ENDPOINT % (project, 'taskcluster', SETA_HIGH_PRIORITY)
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# Try to fetch the SETA data twice, falling back to an empty list of low value tasks.
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# There are 10 seconds between each try.
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try:
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logger.debug("Retrieving low-value jobs list from SETA")
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response = retry(requests.get, attempts=2, sleeptime=10,
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args=(url_low, ),
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kwargs={'timeout': 60, 'headers': ''})
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task_list = json.loads(response.content).get('jobtypes', '')
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if type(task_list) == dict and len(task_list) > 0:
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if type(task_list.values()[0]) == list and len(task_list.values()[0]) > 0:
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low_value_tasks = set(task_list.values()[0])
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# hack seta tasks to run 'opt' jobs on 'pgo' builds - see Bug 1522111
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logger.debug("Retrieving high-value jobs list from SETA")
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response = retry(requests.get, attempts=2, sleeptime=10,
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args=(url_high, ),
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kwargs={'timeout': 60, 'headers': ''})
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task_list = json.loads(response.content).get('jobtypes', '')
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high_value_tasks = set([])
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if type(task_list) == dict and len(task_list) > 0:
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if type(task_list.values()[0]) == list and len(task_list.values()[0]) > 0:
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high_value_tasks = set(task_list.values()[0])
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# hack seta to treat all Android Raptor tasks as low value - see Bug 1535016
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def only_android_raptor(task):
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return task.startswith('test-android') and 'raptor' in task
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high_value_android_tasks = list(filter(only_android_raptor, high_value_tasks))
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low_value_tasks.update(high_value_android_tasks)
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seta_conversions = {
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# old: new
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'test-linux32/opt': 'test-linux32-shippable/opt',
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'test-linux64/opt': 'test-linux64-shippable/opt',
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'test-linux64-pgo/opt': 'test-linux64-shippable/opt',
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'test-linux64-pgo-qr/opt': 'test-linux64-shippable-qr/opt',
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'test-linux64-qr/opt': 'test-linux64-shippable-qr/opt',
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'test-macosx64/opt': 'test-macosx64-shippable/opt',
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'test-macosx64-qr/opt': 'test-macosx64-shippable-qr',
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'test-windows7-32/opt': 'test-windows7-32-shippable/opt',
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'test-windows7-32-pgo/opt': 'test-windows7-32-shippable/opt',
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'test-windows10-64/opt': 'test-windows10-64-shippable/opt',
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'test-windows10-64-pgo/opt': 'test-windows10-64-shippable/opt',
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'test-windows10-64-pgo-qr/opt': 'test-windows10-64-shippable-qr/opt',
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'test-windows10-64-qr/opt': 'test-windows10-64-shippable-qr/opt',
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}
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# Now add new variants to the low-value set
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for old, new in seta_conversions.iteritems():
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if any(t.startswith(old) for t in low_value_tasks):
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low_value_tasks.update(
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[t.replace(old, new) for t in low_value_tasks]
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)
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# ... and the high value list
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for old, new in seta_conversions.iteritems():
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if any(t.startswith(old) for t in high_value_tasks):
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high_value_tasks.update(
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[t.replace(old, new) for t in high_value_tasks]
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)
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def new_as_old_is_high_value(label):
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# This doesn't care if there are multiple old values for one new
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# it will always check every old value.
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for old, new in seta_conversions.iteritems():
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if label.startswith(new):
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old_label = label.replace(new, old)
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if old_label in high_value_tasks:
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return True
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return False
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# Now rip out from low value things that were high value in opt
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low_value_tasks = set([x for x in low_value_tasks if not new_as_old_is_high_value(x)])
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# ensure no build tasks slipped in, we never want to optimize out those
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low_value_tasks = set([x for x in low_value_tasks if 'build' not in x])
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# Strip out any duplicates from the above conversions
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low_value_tasks = list(set(low_value_tasks))
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# In the event of request times out, requests will raise a TimeoutError.
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except exceptions.Timeout:
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logger.warning("SETA timeout, we will treat all test tasks as high value.")
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# In the event of a network problem (e.g. DNS failure, refused connection, etc),
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# requests will raise a ConnectionError.
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except exceptions.ConnectionError:
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logger.warning("SETA connection error, we will treat all test tasks as high value.")
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# In the event of the rare invalid HTTP response(e.g 404, 401),
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# requests will raise an HTTPError exception
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except exceptions.HTTPError:
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logger.warning("We got bad Http response from ouija,"
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" we will treat all test tasks as high value.")
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# We just print the error out as a debug message if we failed to catch the exception above
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except exceptions.RequestException as error:
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logger.warning(error)
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# When we get invalid JSON (i.e. 500 error), it results in a ValueError (bug 1313426)
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except ValueError as error:
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logger.warning("Invalid JSON, possible server error: {}".format(error))
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return low_value_tasks
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def minutes_between_pushes(self, project, cur_push_id, cur_push_date):
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# figure out the minutes that have elapsed between the current push and previous one
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# defaulting to max min so if we can't get value, defaults to run the task
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min_between_pushes = PROJECT_SCHEDULE_ALL_EVERY_MINUTES.get(project, 60)
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prev_push_id = cur_push_id - 1
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# cache the pushdate for the current push so we can use it next time
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self.push_dates[project].update({cur_push_id: cur_push_date})
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# check if we already have the previous push id's datetime cached
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prev_push_date = self.push_dates[project].get(prev_push_id, 0)
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# we have datetime of current and previous push, so return elapsed minutes and bail
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if cur_push_date > 0 and prev_push_date > 0:
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return (cur_push_date - prev_push_date) / 60
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# datetime for previous pushid not cached, so must retrieve it
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# if we already tried to retrieve the datetime for this pushid
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# before and the json-push request failed, don't try it again
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if prev_push_id in self.failed_json_push_calls:
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return min_between_pushes
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url = PUSH_ENDPOINT % (project, cur_push_id - 2, prev_push_id)
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try:
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response = retry(requests.get, attempts=2, sleeptime=10,
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args=(url, ),
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kwargs={'timeout': 60, 'headers': {'User-Agent': 'TaskCluster'}})
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prev_push_date = json.loads(response.content).get(str(prev_push_id), {}).get('date', 0)
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# cache it for next time
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self.push_dates[project].update({prev_push_id: prev_push_date})
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# now have datetime of current and previous push
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if cur_push_date > 0 and prev_push_date > 0:
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min_between_pushes = (cur_push_date - prev_push_date) / 60
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# In the event of request times out, requests will raise a TimeoutError.
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except exceptions.Timeout:
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logger.warning("json-pushes timeout, treating task as high value")
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self.failed_json_push_calls.append(prev_push_id)
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# In the event of a network problem (e.g. DNS failure, refused connection, etc),
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# requests will raise a ConnectionError.
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except exceptions.ConnectionError:
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logger.warning("json-pushes connection error, treating task as high value")
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self.failed_json_push_calls.append(prev_push_id)
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# In the event of the rare invalid HTTP response(e.g 404, 401),
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# requests will raise an HTTPError exception
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except exceptions.HTTPError:
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logger.warning("Bad Http response, treating task as high value")
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self.failed_json_push_calls.append(prev_push_id)
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# When we get invalid JSON (i.e. 500 error), it results in a ValueError (bug 1313426)
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except ValueError as error:
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logger.warning("Invalid JSON, possible server error: {}".format(error))
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self.failed_json_push_calls.append(prev_push_id)
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# We just print the error out as a debug message if we failed to catch the exception above
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except exceptions.RequestException as error:
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logger.warning(error)
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self.failed_json_push_calls.append(prev_push_id)
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return min_between_pushes
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def is_low_value_task(self, label, project, pushlog_id, push_date):
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# marking a task as low_value means it will be optimized out by tc
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if project not in SETA_PROJECTS:
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return False
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schedule_all_every = PROJECT_SCHEDULE_ALL_EVERY_PUSHES.get(project, 5)
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# on every Nth push, want to run all tasks
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if int(pushlog_id) % schedule_all_every == 0:
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return False
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# Nth push, so time to call seta based on number of pushes; however
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# we also want to ensure we run all tasks at least once per N minutes
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if self.minutes_between_pushes(
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project,
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int(pushlog_id),
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int(push_date)) >= PROJECT_SCHEDULE_ALL_EVERY_MINUTES.get(project, 60):
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return False
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# cache the low value tasks per project to avoid repeated SETA server queries
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if project not in self.low_value_tasks:
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self.low_value_tasks[project] = self.query_low_value_tasks(project)
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return label in self.low_value_tasks[project]
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# create a single instance of this class, and expose its `is_low_value_task`
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# bound method as a module-level function
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is_low_value_task = SETA().is_low_value_task
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