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https://github.com/ceph/ceph
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3c9f16d8ab
The umount process can get stuck, in which case we want to fail the test rather than waiting around for it. During teardown of the kclient task catch this timeout explicitly so that we will powercycle the node if needed. Signed-off-by: John Spray <john.spray@redhat.com>
138 lines
4.2 KiB
Python
138 lines
4.2 KiB
Python
"""
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Mount/unmount a ``kernel`` client.
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"""
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import contextlib
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import logging
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from teuthology.misc import deep_merge
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from teuthology.orchestra.run import CommandFailedError
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from teuthology import misc
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from teuthology.contextutil import MaxWhileTries
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from cephfs.kernel_mount import KernelMount
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log = logging.getLogger(__name__)
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@contextlib.contextmanager
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def task(ctx, config):
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"""
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Mount/unmount a ``kernel`` client.
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The config is optional and defaults to mounting on all clients. If
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a config is given, it is expected to be a list of clients to do
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this operation on. This lets you e.g. set up one client with
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``ceph-fuse`` and another with ``kclient``.
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Example that mounts all clients::
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tasks:
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- ceph:
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- kclient:
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- interactive:
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Example that uses both ``kclient` and ``ceph-fuse``::
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tasks:
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- ceph:
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- ceph-fuse: [client.0]
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- kclient: [client.1]
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- interactive:
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Pass a dictionary instead of lists to specify per-client config:
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tasks:
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-kclient:
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client.0:
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debug: true
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:param ctx: Context
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:param config: Configuration
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"""
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log.info('Mounting kernel clients...')
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assert config is None or isinstance(config, list) or isinstance(config, dict), \
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"task kclient got invalid config"
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if config is None:
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config = ['client.{id}'.format(id=id_)
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for id_ in misc.all_roles_of_type(ctx.cluster, 'client')]
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if isinstance(config, list):
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client_roles = config
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config = dict([r, dict()] for r in client_roles)
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elif isinstance(config, dict):
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client_roles = filter(lambda x: 'client.' in x, config.keys())
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else:
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raise ValueError("Invalid config object: {0} ({1})".format(config, config.__class__))
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# config has been converted to a dict by this point
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overrides = ctx.config.get('overrides', {})
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deep_merge(config, overrides.get('kclient', {}))
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clients = list(misc.get_clients(ctx=ctx, roles=client_roles))
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test_dir = misc.get_testdir(ctx)
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# Assemble mon addresses
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remotes_and_roles = ctx.cluster.remotes.items()
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roles = [roles for (remote_, roles) in remotes_and_roles]
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ips = [remote_.ssh.get_transport().getpeername()[0]
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for (remote_, _) in remotes_and_roles]
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mons = misc.get_mons(roles, ips).values()
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mounts = {}
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for id_, remote in clients:
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client_config = config.get("client.%s" % id_)
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if client_config is None:
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client_config = {}
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if config.get("disabled", False) or not client_config.get('mounted', True):
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continue
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kernel_mount = KernelMount(
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mons,
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test_dir,
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id_,
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remote,
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ctx.teuthology_config.get('ipmi_user', None),
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ctx.teuthology_config.get('ipmi_password', None),
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ctx.teuthology_config.get('ipmi_domain', None)
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)
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mounts[id_] = kernel_mount
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if client_config.get('debug', False):
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remote.run(args=["sudo", "bash", "-c", "echo 'module ceph +p' > /sys/kernel/debug/dynamic_debug/control"])
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remote.run(args=["sudo", "bash", "-c", "echo 'module libceph +p' > /sys/kernel/debug/dynamic_debug/control"])
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kernel_mount.mount()
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def umount_all():
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log.info('Unmounting kernel clients...')
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forced = False
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for mount in mounts.values():
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if mount.is_mounted():
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try:
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mount.umount()
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except (CommandFailedError, MaxWhileTries):
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log.warn("Ordinary umount failed, forcing...")
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forced = True
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mount.umount_wait(force=True)
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return forced
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ctx.mounts = mounts
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try:
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yield mounts
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except:
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umount_all() # ignore forced retval, we are already in error handling
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finally:
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forced = umount_all()
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if forced:
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# The context managers within the kclient manager worked (i.e.
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# the test workload passed) but for some reason we couldn't
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# umount, so turn this into a test failure.
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raise RuntimeError("Kernel mounts did not umount cleanly")
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