mirror of https://github.com/mongodb/mongo
80 lines
3.1 KiB
Python
80 lines
3.1 KiB
Python
"""Test hook for running safe reconfigs against the primary of a replica set.
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This hook runs continously in a background thread while the test is running.
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"""
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import os.path
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from buildscripts.resmokelib import errors
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from buildscripts.resmokelib.testing.hooks import jsfile
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from buildscripts.resmokelib.testing.hooks.background_job import (
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_BackgroundJob,
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_ContinuousDynamicJSTestCase,
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)
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class DoReconfigInBackground(jsfile.JSHook):
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"""A hook for running a safe reconfig against a replica set while a test is running."""
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IS_BACKGROUND = True
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def __init__(self, hook_logger, fixture, shell_options=None):
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"""Initialize DoReconfigInBackground."""
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description = "Run reconfigs against the primary while the test is running."
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js_filename = os.path.join("jstests", "hooks", "run_reconfig_background.js")
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jsfile.JSHook.__init__(
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self, hook_logger, fixture, js_filename, description, shell_options=shell_options
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)
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self._background_job = None
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def before_suite(self, test_report):
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"""Start the background thread."""
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self._background_job = _BackgroundJob("ReconfigInBackground")
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self.logger.info("Starting the background reconfig thread.")
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self._background_job.start()
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def after_suite(self, test_report, teardown_flag=None):
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"""Signal the background thread to exit, and wait until it does."""
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if self._background_job is None:
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return
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self.logger.info("Stopping the background reconfig thread.")
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self._background_job.stop()
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def before_test(self, test, test_report):
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"""Instruct the background thread to run reconfigs while 'test' is also running."""
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if self._background_job is None:
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return
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hook_test_case = _ContinuousDynamicJSTestCase.create_before_test(
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test.logger, test, self, self._js_filename, self._shell_options
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)
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hook_test_case.configure(self.fixture)
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self.logger.info("Resuming the background reconfig thread.")
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self._background_job.resume(hook_test_case, test_report)
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def after_test(self, test, test_report): # noqa: D205,D400
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"""Instruct the background thread to stop running reconfigs now that 'test' has
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finished running.
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"""
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if self._background_job is None:
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return
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self.logger.info("Pausing the background reconfig thread.")
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self._background_job.pause()
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if self._background_job.exc_info is not None:
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if isinstance(self._background_job.exc_info[1], errors.TestFailure):
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# If the mongo shell process running the JavaScript file exited with a non-zero
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# return code, then we raise an errors.ServerFailure exception to cause resmoke.py's
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# test execution to stop.
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raise errors.ServerFailure(self._background_job.exc_info[1].args[0])
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else:
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self.logger.error(
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"Encountered an error inside the background reconfig thread.",
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exc_info=self._background_job.exc_info,
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)
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raise self._background_job.exc_info[1]
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