docker/core/Switch-to-threading.Thread-for-Rally-tasks.patch

   1 From 0d0ca00e56024a9919c150dbed62050d4c70b0c8 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?C=C3=A9dric=20Ollivier?= <cedric.ollivier@orange.com>
   3 Date: Wed, 3 Jun 2020 15:23:59 +0200
   4 Subject: [PATCH] Switch to threading.Thread() for Rally tasks
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 multiprocessing.Process() often fails due to thread crashes [1].
  10 It looks similar to gsutil release notes [2].
  11
  12 [1] https://build.opnfv.org/ci/job/functest-opnfv-functest-benchmarking-cntt-latest-rally_full_cntt-run/35/console
  13 [2] https://github.com/GoogleCloudPlatform/gsutil/issues/548
  14 [3] https://github.com/GoogleCloudPlatform/gsutil/blob/master/CHANGES.md
  15
  16 Change-Id: I582933832e23d188c7fa5999e713dd5d7e82d2da
  17 Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
  18 ---
  19  rally/task/runner.py | 7 ++++---
  20  1 file changed, 4 insertions(+), 3 deletions(-)
  21
  22 diff --git a/rally/task/runner.py b/rally/task/runner.py
  23 index 3397e1193..5edebb406 100644
  24 --- a/rally/task/runner.py
  25 +++ b/rally/task/runner.py
  26 @@ -17,6 +17,7 @@ import abc
  27  import collections
  28  import copy
  29  import multiprocessing
  30 +import threading
  31  import time
  32
  33  from rally.common import logging
  34 @@ -186,9 +187,9 @@ class ScenarioRunner(plugin.Plugin, validation.ValidatablePluginMixin,
  35          for i in range(processes_to_start):
  36              kwrgs = {"processes_to_start": processes_to_start,
  37                       "processes_counter": i}
  38 -            process = multiprocessing.Process(target=worker_process,
  39 -                                              args=next(worker_args_gen),
  40 -                                              kwargs={"info": kwrgs})
  41 +            process = threading.Thread(target=worker_process,
  42 +                                       args=next(worker_args_gen),
  43 +                                       kwargs={"info": kwrgs})
  44              process.start()
  45              process_pool.append(process)
  46
  47 --
  48 2.26.2
  49