ceph/teuthology/task/internal.py

531 lines
18 KiB
Python

from cStringIO import StringIO
import contextlib
import gevent
import logging
import os
import time
import yaml
import re
import subprocess
from teuthology import lockstatus
from teuthology import lock
from teuthology import misc as teuthology
from teuthology.parallel import parallel
from ..orchestra import run
log = logging.getLogger(__name__)
@contextlib.contextmanager
def base(ctx, config):
log.info('Creating base directory...')
test_basedir = teuthology.get_testdir_base(ctx)
testdir = teuthology.get_testdir(ctx)
# make base dir if it doesn't exist
run.wait(
ctx.cluster.run(
args=[
'mkdir', '-m0755', '-p', '--',
test_basedir,
],
wait=False,
)
)
# only create testdir if its not set to basedir
if test_basedir != testdir:
run.wait(
ctx.cluster.run(
args=[
'mkdir', '-m0755', '--',
testdir,
],
wait=False,
)
)
try:
yield
finally:
log.info('Tidying up after the test...')
# if this fails, one of the earlier cleanups is flawed; don't
# just cram an rm -rf here
run.wait(
ctx.cluster.run(
args=[
'rmdir',
'--',
testdir,
],
wait=False,
),
)
@contextlib.contextmanager
def lock_machines(ctx, config):
log.info('Locking machines...')
assert isinstance(config[0], int), 'config must be an integer'
machine_type = config[1]
config = config[0]
while True:
# make sure there are enough machines up
machines = lock.list_locks(ctx)
if machines is None:
if ctx.block:
log.warn('error listing machines, trying again')
time.sleep(20)
continue
else:
assert 0, 'error listing machines'
num_up = len(filter(lambda machine: machine['up'] and machine['type'] == machine_type, machines))
assert num_up >= config, 'not enough machines are up'
# make sure there are machines for non-automated jobs to run
num_free = len(filter(
lambda machine: machine['up'] and machine['locked'] == 0 and machine['type'] == machine_type,
machines
))
if num_free < 6 and ctx.owner.startswith('scheduled'):
if ctx.block:
log.info('waiting for more machines to be free...')
time.sleep(10)
continue
else:
assert 0, 'not enough machines free'
newly_locked = lock.lock_many(ctx, config, machine_type, ctx.owner, ctx.archive)
if len(newly_locked) == config:
vmlist = []
for lmach in newly_locked:
if lock.create_if_vm(ctx,lmach):
vmlist.append(lmach)
if vmlist:
log.info('Waiting for virtual machines to come up')
keyscan_out = ''
while not keyscan_out:
time.sleep(10)
keyscan_out, current_locks = lock.keyscan_check(ctx, vmlist)
log.info('virtual machine is stil unavailable')
if lock.update_keys(ctx, keyscan_out, current_locks):
log.info("Error in virtual machine keys")
newscandict = {}
for dkey in newly_locked.iterkeys():
stats = lockstatus.get_status(ctx, dkey)
newscandict[dkey] = stats['sshpubkey']
ctx.config['targets'] = newscandict
else:
ctx.config['targets'] = newly_locked
log.info('\n '.join(['Locked targets:', ] + yaml.safe_dump(ctx.config['targets'], default_flow_style=False).splitlines()))
break
elif not ctx.block:
assert 0, 'not enough machines are available'
log.warn('Could not lock enough machines, waiting...')
time.sleep(10)
try:
yield
finally:
if ctx.summary.get('success', False):
log.info('Unlocking machines...')
for machine in ctx.config['targets'].iterkeys():
lock.unlock(ctx, machine, ctx.owner)
def save_config(ctx, config):
log.info('Saving configuration')
if ctx.archive is not None:
with file(os.path.join(ctx.archive, 'config.yaml'), 'w') as f:
yaml.safe_dump(ctx.config, f, default_flow_style=False)
def check_lock(ctx, config):
if ctx.config.get('check-locks') == False:
log.info('Lock checking disabled.')
return
log.info('Checking locks...')
for machine in ctx.config['targets'].iterkeys():
status = lockstatus.get_status(ctx, machine)
log.debug('machine status is %s', repr(status))
assert status is not None, \
'could not read lock status for {name}'.format(name=machine)
assert status['up'], 'machine {name} is marked down'.format(name=machine)
assert status['locked'], \
'machine {name} is not locked'.format(name=machine)
assert status['locked_by'] == ctx.owner, \
'machine {name} is locked by {user}, not {owner}'.format(
name=machine,
user=status['locked_by'],
owner=ctx.owner,
)
@contextlib.contextmanager
def timer(ctx, config):
log.info('Starting timer...')
start = time.time()
try:
yield
finally:
duration = time.time() - start
log.info('Duration was %f seconds', duration)
ctx.summary['duration'] = duration
def connect(ctx, config):
log.info('Opening connections...')
from ..orchestra import connection, remote
from ..orchestra import cluster
remotes = []
machs = []
for name in ctx.config['targets'].iterkeys():
machs.append(name)
for t, key in ctx.config['targets'].iteritems():
log.debug('connecting to %s', t)
try:
if ctx.config['sshkeys'] == 'ignore':
key = None
except (AttributeError, KeyError):
pass
for machine in ctx.config['targets'].iterkeys():
if teuthology.is_vm(machine):
key = None
break
remotes.append(
remote.Remote(name=t,
ssh=connection.connect(user_at_host=t,
host_key=key,
keep_alive=True),
console=None))
ctx.cluster = cluster.Cluster()
if 'roles' in ctx.config:
for rem, roles in zip(remotes, ctx.config['roles']):
assert all(isinstance(role, str) for role in roles), \
"Roles in config must be strings: %r" % roles
ctx.cluster.add(rem, roles)
log.info('roles: %s - %s' % (rem, roles))
else:
for rem in remotes:
ctx.cluster.add(rem, rem.name)
def check_ceph_data(ctx, config):
log.info('Checking for old /var/lib/ceph...')
processes = ctx.cluster.run(
args=[
'test', '!', '-e', '/var/lib/ceph',
],
wait=False,
)
failed = False
for proc in processes:
assert isinstance(proc.exitstatus, gevent.event.AsyncResult)
try:
proc.exitstatus.get()
except run.CommandFailedError:
log.error('Host %s has stale /var/lib/ceph, check lock and nuke/cleanup.', proc.remote.shortname)
failed = True
if failed:
raise RuntimeError('Stale /var/lib/ceph detected, aborting.')
def check_conflict(ctx, config):
log.info('Checking for old test directory...')
test_basedir = teuthology.get_testdir_base(ctx)
processes = ctx.cluster.run(
args=[
'test', '!', '-e', test_basedir,
],
wait=False,
)
for proc in processes:
assert isinstance(proc.exitstatus, gevent.event.AsyncResult)
try:
proc.exitstatus.get()
except run.CommandFailedError:
# base dir exists
r = proc.remote.run(
args=[
'ls', test_basedir, run.Raw('|'), 'wc', '-l'
],
stdout=StringIO(),
)
if int(r.stdout.getvalue()) > 0:
log.error('WARNING: Host %s has stale test directories, these need to be investigated and cleaned up!',
proc.remote.shortname)
# testdir might be the same as base dir (if test_path is set)
# need to bail out in that case if the testdir exists
testdir = teuthology.get_testdir(ctx)
processes = ctx.cluster.run(
args=[
'test', '!', '-e', testdir,
],
wait=False,
)
failed = False
for proc in processes:
assert isinstance(proc.exitstatus, gevent.event.AsyncResult)
try:
proc.exitstatus.get()
except run.CommandFailedError:
log.error('Host %s has stale test directory %s, check lock and cleanup.', proc.remote.shortname, testdir)
failed = True
if failed:
raise RuntimeError('Stale jobs detected, aborting.')
@contextlib.contextmanager
def archive(ctx, config):
log.info('Creating archive directory...')
testdir = teuthology.get_testdir(ctx)
archive_dir = '{tdir}/archive'.format(tdir=testdir)
run.wait(
ctx.cluster.run(
args=[
'install', '-d', '-m0755', '--', archive_dir,
],
wait=False,
)
)
try:
yield
except:
# we need to know this below
ctx.summary['success'] = False
raise
finally:
if ctx.archive is not None and \
not (ctx.config.get('archive-on-error') and ctx.summary['success']):
log.info('Transferring archived files...')
logdir = os.path.join(ctx.archive, 'remote')
if (not os.path.exists(logdir)):
os.mkdir(logdir)
for remote in ctx.cluster.remotes.iterkeys():
path = os.path.join(logdir, remote.shortname)
teuthology.pull_directory(remote, archive_dir, path)
log.info('Removing archive directory...')
run.wait(
ctx.cluster.run(
args=[
'rm',
'-rf',
'--',
archive_dir,
],
wait=False,
),
)
@contextlib.contextmanager
def coredump(ctx, config):
log.info('Enabling coredump saving...')
archive_dir = '{tdir}/archive'.format(tdir=teuthology.get_testdir(ctx))
run.wait(
ctx.cluster.run(
args=[
'install', '-d', '-m0755', '--',
'{adir}/coredump'.format(adir=archive_dir),
run.Raw('&&'),
'sudo', 'sysctl', '-w', 'kernel.core_pattern={adir}/coredump/%t.%p.core'.format(adir=archive_dir),
],
wait=False,
)
)
try:
yield
finally:
run.wait(
ctx.cluster.run(
args=[
'sudo', 'sysctl', '-w', 'kernel.core_pattern=core',
run.Raw('&&'),
# don't litter the archive dir if there were no cores dumped
'rmdir',
'--ignore-fail-on-non-empty',
'--',
'{adir}/coredump'.format(adir=archive_dir),
],
wait=False,
)
)
# set success=false if the dir is still there = coredumps were
# seen
for remote in ctx.cluster.remotes.iterkeys():
r = remote.run(
args=[
'if', 'test', '!', '-e', '{adir}/coredump'.format(adir=archive_dir), run.Raw(';'), 'then',
'echo', 'OK', run.Raw(';'),
'fi',
],
stdout=StringIO(),
)
if r.stdout.getvalue() != 'OK\n':
log.warning('Found coredumps on %s, flagging run as failed', remote)
ctx.summary['success'] = False
if 'failure_reason' not in ctx.summary:
ctx.summary['failure_reason'] = \
'Found coredumps on {remote}'.format(remote=remote)
@contextlib.contextmanager
def syslog(ctx, config):
if ctx.archive is None:
# disable this whole feature if we're not going to archive the data anyway
yield
return
log.info('Starting syslog monitoring...')
archive_dir = '{tdir}/archive'.format(tdir=teuthology.get_testdir(ctx))
run.wait(
ctx.cluster.run(
args=[
'mkdir', '-m0755', '--',
'{adir}/syslog'.format(adir=archive_dir),
],
wait=False,
)
)
CONF = '/etc/rsyslog.d/80-cephtest.conf'
conf_fp = StringIO("""
kern.* -{adir}/syslog/kern.log;RSYSLOG_FileFormat
*.*;kern.none -{adir}/syslog/misc.log;RSYSLOG_FileFormat
""".format(adir=archive_dir))
try:
for rem in ctx.cluster.remotes.iterkeys():
teuthology.sudo_write_file(
remote=rem,
path=CONF,
data=conf_fp,
)
conf_fp.seek(0)
run.wait(
ctx.cluster.run(
args=[
'sudo',
'service',
# a mere reload (SIGHUP) doesn't seem to make
# rsyslog open the files
'rsyslog',
'restart',
],
wait=False,
),
)
yield
finally:
log.info('Shutting down syslog monitoring...')
run.wait(
ctx.cluster.run(
args=[
'sudo',
'rm',
'-f',
'--',
CONF,
run.Raw('&&'),
'sudo',
'service',
'rsyslog',
'restart',
],
wait=False,
),
)
# race condition: nothing actually says rsyslog had time to
# flush the file fully. oh well.
log.info('Checking logs for errors...')
for remote in ctx.cluster.remotes.iterkeys():
log.debug('Checking %s', remote.name)
r = remote.run(
args=[
'egrep',
'\\bBUG\\b|\\bINFO\\b|\\bDEADLOCK\\b',
run.Raw('{adir}/archive/syslog/*.log'.format(adir=archive_dir)),
run.Raw('|'),
'grep', '-v', 'task .* blocked for more than .* seconds',
run.Raw('|'),
'grep', '-v', 'lockdep is turned off',
run.Raw('|'),
'grep', '-v', 'trying to register non-static key',
run.Raw('|'),
'grep', '-v', 'DEBUG: fsize', # xfs_fsr
run.Raw('|'),
'grep', '-v', 'CRON', # ignore cron noise
run.Raw('|'),
'grep', '-v', 'inconsistent lock state', # FIXME see #2523
run.Raw('|'),
'grep', '-v', '*** DEADLOCK ***', # part of lockdep output
run.Raw('|'),
'grep', '-v', 'INFO: possible irq lock inversion dependency detected', # FIXME see #2590 and #147
run.Raw('|'),
'grep', '-v', 'INFO: possible recursive locking detected', # FIXME see #3040
run.Raw('|'),
'grep', '-v', 'BUG: lock held when returning to user space', # REMOVE ME when btrfs sb_internal crap is fixed
run.Raw('|'),
'grep', '-v', 'INFO: possible circular locking dependency detected', # FIXME remove when xfs stops being noisy and lame.
run.Raw('|'),
'head', '-n', '1',
],
stdout=StringIO(),
)
stdout = r.stdout.getvalue()
if stdout != '':
log.error('Error in syslog on %s: %s', remote.name, stdout)
ctx.summary['success'] = False
if 'failure_reason' not in ctx.summary:
ctx.summary['failure_reason'] = \
"'{error}' in syslog".format(error=stdout)
log.info('Compressing syslogs...')
run.wait(
ctx.cluster.run(
args=[
'find',
'{adir}/archive/syslog'.format(adir=archive_dir),
'-name',
'*.log',
'-print0',
run.Raw('|'),
'xargs',
'-0',
'--no-run-if-empty',
'--',
'gzip',
'--',
],
wait=False,
),
)
def vm_setup(ctx, config):
"""
Look for virtual machines and handle their initialization
"""
with parallel() as p:
editinfo = os.path.join(os.path.dirname(__file__),'edit_sudoers.sh')
for remote in ctx.cluster.remotes.iterkeys():
mname = re.match(".*@([^\.]*)\..*", str(remote)).group(1)
if teuthology.is_vm(mname):
r = remote.run(args=['test', '-e', '/ceph-qa-ready',],
stdout=StringIO(),
check_status=False,)
if r.exitstatus != 0:
p1 = subprocess.Popen(['cat', editinfo], stdout=subprocess.PIPE)
p2 = subprocess.Popen(['ssh','-t','-t',str(remote), 'sudo', 'sh'],stdin=p1.stdout, stdout=subprocess.PIPE)
_,err = p2.communicate()
if err:
log.info("Edit of /etc/sudoers failed: %s",err)
p.spawn(_handle_vm_init, remote)
def _handle_vm_init(remote):
log.info('Running ceph_qa_chef on ', remote)
remote.run(args=['wget','-q','-O-',
'https://raw.github.com/ceph/ceph-qa-chef/master/solo/solo-from-scratch',
run.Raw('|'),
'sh',
])