""" 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: objects: max_in_flight: object_size: min_stride_size: max_stride_size: op_weights: runs: - 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('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()