mirror of
https://github.com/ceph/ceph
synced 2024-12-29 15:03:33 +00:00
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
"""
|
|
Thrash -- Simulate random osd failures.
|
|
"""
|
|
import contextlib
|
|
import logging
|
|
import gevent
|
|
import time
|
|
import random
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
@contextlib.contextmanager
|
|
def task(ctx, config):
|
|
"""
|
|
"Thrash" snap creation and removal on the listed pools
|
|
|
|
Example:
|
|
|
|
thrash_pool_snaps:
|
|
pools: [.rgw.buckets, .rgw.buckets.index]
|
|
max_snaps: 10
|
|
min_snaps: 5
|
|
period: 10
|
|
"""
|
|
stopping = False
|
|
def do_thrash():
|
|
pools = config.get('pools', [])
|
|
max_snaps = config.get('max_snaps', 10)
|
|
min_snaps = config.get('min_snaps', 5)
|
|
period = config.get('period', 30)
|
|
snaps = []
|
|
manager = ctx.managers['ceph']
|
|
def remove_snap():
|
|
assert len(snaps) > 0
|
|
snap = random.choice(snaps)
|
|
log.info("Removing snap %s" % (snap,))
|
|
for pool in pools:
|
|
manager.remove_pool_snap(pool, str(snap))
|
|
snaps.remove(snap)
|
|
def add_snap(snap):
|
|
log.info("Adding snap %s" % (snap,))
|
|
for pool in pools:
|
|
manager.add_pool_snap(pool, str(snap))
|
|
snaps.append(snap)
|
|
index = 0
|
|
while not stopping:
|
|
index += 1
|
|
time.sleep(period)
|
|
if len(snaps) <= min_snaps:
|
|
add_snap(index)
|
|
elif len(snaps) >= max_snaps:
|
|
remove_snap()
|
|
else:
|
|
random.choice([lambda: add_snap(index), remove_snap])()
|
|
log.info("Stopping")
|
|
thread = gevent.spawn(do_thrash)
|
|
yield
|
|
stopping = True
|
|
thread.join()
|
|
|