mirror of https://github.com/ceph/ceph
80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
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"""
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immutable object cache thrash task
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"""
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import contextlib
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import logging
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from teuthology import misc as teuthology
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from teuthology import contextutil
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from teuthology.orchestra import run
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DEFAULT_KILL_DAEMON_TIME = 2
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DEFAULT_DEAD_TIME = 30
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DEFAULT_LIVE_TIME = 120
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log = logging.getLogger(__name__)
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@contextlib.contextmanager
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def thrashes_immutable_object_cache_daemon(ctx, config):
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"""
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thrashes immutable object cache daemon.
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It can test reconnection feature of RO cache when RO daemon crash
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TODO : replace sleep with better method.
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"""
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log.info("thrashes immutable object cache daemon")
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# just thrash one rbd client.
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client, client_config = list(config.items())[0]
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(remote,) = ctx.cluster.only(client).remotes.keys()
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client_config = client_config if client_config is not None else dict()
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kill_daemon_time = client_config.get('kill_daemon_time', DEFAULT_KILL_DAEMON_TIME)
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dead_time = client_config.get('dead_time', DEFAULT_DEAD_TIME)
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live_time = client_config.get('live_time', DEFAULT_LIVE_TIME)
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for i in range(kill_daemon_time):
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log.info("ceph-immutable-object-cache crash....")
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remote.run(
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args=[
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'sudo', 'killall', '-s', '9', 'ceph-immutable-object-cache', run.Raw('||'), 'true',
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]
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)
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# librbd shoud normally run when ceph-immutable-object-cache
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remote.run(
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args=[
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'sleep', '{dead_time}'.format(dead_time=dead_time),
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]
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)
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# librbd should reconnect daemon
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log.info("startup ceph-immutable-object-cache")
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remote.run(
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args=[
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'ceph-immutable-object-cache', '-b',
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]
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)
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remote.run(
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args=[
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'sleep', '{live_time}'.format(live_time=live_time),
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]
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)
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try:
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yield
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finally:
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log.info("cleanup")
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@contextlib.contextmanager
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def task(ctx, config):
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"""
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This is task for testing immutable_object_cache thrash.
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"""
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assert isinstance(config, dict), \
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"task immutable_object_cache_thrash only supports a dictionary for configuration"
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managers = []
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config = teuthology.replace_all_with_clients(ctx.cluster, config)
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managers.append(
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lambda: thrashes_immutable_object_cache_daemon(ctx=ctx, config=config)
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)
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with contextutil.nested(*managers):
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yield
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