"""
Rados modle-based integration tests
"""
import contextlib
import logging
import gevent
from teuthology import misc as teuthology
from teuthology.orchestra import run
log = logging.getLogger(__name__)
@contextlib.contextmanager
def task(ctx, config):
"""
Run RadosModel-based integration tests.
The config should be as follows::
rados:
clients: [client list]
ops: <number of ops>
objects: <number of objects to use>
max_in_flight: <max number of operations in flight>
object_size: <size of objects in bytes>
min_stride_size: <minimum write stride size in bytes>
max_stride_size: <maximum write stride size in bytes>
op_weights: <dictionary mapping operation type to integer weight>
runs: <number of times to run> - the pool is remade between runs
ec_pool: use an ec pool
erasure_code_profile: profile to use with the erasure coded pool
fast_read: enable ec_pool's fast_read
min_size: set the min_size of created pool
pool_snaps: use pool snapshots instead of selfmanaged snapshots
write_fadvise_dontneed: write behavior like with LIBRADOS_OP_FLAG_FADVISE_DONTNEED.
This mean data don't access in the near future.
Let osd backend don't keep data in cache.
For example::
tasks:
- ceph:
- rados:
clients: [client.0]
ops: 1000
max_seconds: 0 # 0 for no limit
objects: 25
max_in_flight: 16
object_size: 4000000
min_stride_size: 1024
max_stride_size: 4096
op_weights:
read: 20
write: 10
delete: 2
snap_create: 3
rollback: 2
snap_remove: 0
ec_pool: create an ec pool, defaults to False
erasure_code_use_overwrites: test overwrites, default false
erasure_code_profile:
name: teuthologyprofile
k: 2
m: 1
crush-failure-domain: osd
pool_snaps: true
write_fadvise_dontneed: true
runs: 10
- interactive:
Optionally, you can provide the pool name to run against:
tasks:
- ceph:
- exec:
client.0:
- ceph osd pool create foo
- rados:
clients: [client.0]
pools: [foo]
...
Alternatively, you can provide a pool prefix:
tasks:
- ceph:
- exec:
client.0:
- ceph osd pool create foo.client.0
- rados:
clients: [client.0]
pool_prefix: foo
...
The tests are run asynchronously, they are not complete when the task
returns. For instance:
- rados:
clients: [client.0]
pools: [ecbase]
ops: 4000
objects: 500
op_weights:
read: 100
write: 100
delete: 50
copy_from: 50
- print: "**** done rados ec-cache-agent (part 2)"
will run the print task immediately after the rados tasks begins but
not after it completes. To make the rados task a blocking / sequential
task, use:
- sequential:
- rados:
clients: [client.0]
pools: [ecbase]
ops: 4000
objects: 500
op_weights:
read: 100
write: 100
delete: 50
copy_from: 50
- print: "**** done rados ec-cache-agent (part 2)"
"""
log.info('Beginning rados...')
assert isinstance(config, dict), \
"please list clients to run on"
object_size = int(config.get('object_size', 4000000))
op_weights = config.get('op_weights', {})
testdir = teuthology.get_testdir(ctx)
args = [
'adjust-ulimits',
'ceph-coverage',
'{tdir}/archive/coverage'.format(tdir=testdir),
'ceph_test_rados']
if config.get('ec_pool', False):
args.extend(['--no-omap'])
if not config.get('erasure_code_use_overwrites', False):
args.extend(['--ec-pool'])
if config.get('write_fadvise_dontneed', False):
args.extend(['--write-fadvise-dontneed'])
if config.get('set_redirect', False):
args.extend(['--set_redirect'])
if config.get('set_chunk', False):
args.extend(['--set_chunk'])
if config.get('low_tier_pool', None):
args.extend(['--low_tier_pool', config.get('low_tier_pool', None)])
if config.get('pool_snaps', False):
args.extend(['--pool-snaps'])
args.extend([
'--max-ops', str(config.get('ops', 10000)),
'--objects', str(config.get('objects', 500)),
'--max-in-flight', str(config.get('max_in_flight', 16)),
'--size', str(object_size),
'--min-stride-size', str(config.get('min_stride_size', object_size / 10)),
'--max-stride-size', str(config.get('max_stride_size', object_size / 5)),
'--max-seconds', str(config.get('max_seconds', 0))
])
weights = {}
weights['read'] = 100
weights['write'] = 100
weights['delete'] = 10
# Parallel of the op_types in test/osd/TestRados.cc
for field in [
# read handled above
# write handled above
# delete handled above
"snap_create",
"snap_remove",
"rollback",
"setattr",
"rmattr",
"watch",
"copy_from",
"hit_set_list",
"is_dirty",
"undirty",
"cache_flush",
"cache_try_flush",
"cache_evict",
"append",
"write",
"read",
"delete"
]:
if field in op_weights:
weights[field] = op_weights[field]
if config.get('write_append_excl', True):
if 'write' in weights:
weights['write'] = weights['write'] / 2
weights['write_excl'] = weights['write']
if 'append' in weights:
weights['append'] = weights['append'] / 2
weights['append_excl'] = weights['append']
for op, weight in weights.iteritems():
args.extend([
'--op', op, str(weight)
])
def thread():
"""Thread spawned by gevent"""
clients = ['client.{id}'.format(id=id_) for id_ in teuthology.all_roles_of_type(ctx.cluster, 'client')]
log.info('clients are %s' % clients)
manager = ctx.managers['ceph']
if config.get('ec_pool', False):
profile = config.get('erasure_code_profile', {})
profile_name = profile.get('name', 'teuthologyprofile')
manager.create_erasure_code_profile(profile_name, profile)
else:
profile_name = None
for i in range(int(config.get('runs', '1'))):
log.info("starting run %s out of %s", str(i), config.get('runs', '1'))
tests = {}
existing_pools = config.get('pools', [])
created_pools = []
for role in config.get('clients', clients):
assert isinstance(role, basestring)
PREFIX = 'client.'
assert role.startswith(PREFIX)
id_ = role[len(PREFIX):]
pool = config.get('pool', None)
if not pool and existing_pools:
pool = existing_pools.pop()
else:
pool = manager.create_pool_with_unique_name(
erasure_code_profile_name=profile_name,
erasure_code_use_overwrites=
config.get('erasure_code_use_overwrites', False)
)
created_pools.append(pool)
if config.get('fast_read', False):
manager.raw_cluster_cmd(
'osd', 'pool', 'set', pool, 'fast_read', 'true')
min_size = config.get('min_size', None);
if min_size is not None:
manager.raw_cluster_cmd(
'osd', 'pool', 'set', pool, 'min_size', str(min_size))
(remote,) = ctx.cluster.only(role).remotes.iterkeys()
proc = remote.run(
args=["CEPH_CLIENT_ID={id_}".format(id_=id_)] + args +
["--pool", pool],
logger=log.getChild("rados.{id}".format(id=id_)),
stdin=run.PIPE,
wait=False
)
tests[id_] = proc
run.wait(tests.itervalues())
for pool in created_pools:
manager.wait_snap_trimming_complete(pool);
manager.remove_pool(pool)
running = gevent.spawn(thread)
try:
yield
finally:
log.info('joining rados')
running.get()