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enospc_test.py
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enospc_test.py
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#!/usr/bin/env python
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# See LICENSE for more details.
#
# Copyright (c) 2017 ScyllaDB
from sdcm.tester import ClusterTester
from sdcm.nemesis import EnospcAllNodesMonkey
from sdcm.utils.common import skip_optional_stage
class EnospcTest(ClusterTester):
"""
Cost rest space to trigger ENOSPC error for scylla,
and then release space to recover scylla service.
"""
def test_enospc_nodes(self):
self.db_cluster.add_nemesis(nemesis=EnospcAllNodesMonkey,
tester_obj=self)
if not skip_optional_stage('main_load'):
# run a write workload
stress_queue = self.run_stress_thread(stress_cmd=self.params.get('stress_cmd'),
stress_num=2, keyspace_num=1)
self.db_cluster.start_nemesis(interval=15)
self.db_cluster.stop_nemesis(timeout=1000)
if not skip_optional_stage('main_load'):
self.get_stress_results(queue=stress_queue)