def lookup_keys(ctx):
log.info("Start looking up keys")
stats = ctx.monitor.stats["lookup"]
stats.timer('process', 'started')
ctx.elog = elliptics.Logger(ctx.log_file, int(ctx.log_level))
node = elliptics_create_node(address=ctx.address,
elog=ctx.elog,
wait_timeout=ctx.wait_timeout,
net_thread_num=1,
io_thread_num=1,
remotes=ctx.remotes)
session = elliptics.Session(node)
filename = os.path.join(ctx.tmp_dir, 'merged_result')
merged_f = open(filename, 'w')
pickler = pickle.Pickler(merged_f)
with open(ctx.dump_file, 'r') as dump:
for str_id in dump:
id = elliptics.Id(str_id)
lookups = []
for g in ctx.groups:
session.groups = [g]
lookups.append(session.read_data(id, size=1))
key_infos = []
for i, l in enumerate(lookups):
try:
result = l.get()[0]
address = result.address
key_infos.append(KeyInfo(address,
ctx.groups[i],
result.timestamp,
result.size,
result.user_flags))
except Exception, e:
log.error("Failed to lookup key: {0} in group: {1}: {2}, traceback: {3}"
.format(id, ctx.groups[i], repr(e), traceback.format_exc()))
stats.counter("lookups", -1)
if len(key_infos) > 0:
key_data = (id, key_infos)
pickler.dump(key_data)
stats.counter("lookups", len(key_infos))
else:
log.error("Key: {0} is missing in all specified groups: {1}. It won't be recovered."
.format(id, ctx.groups))
def _update_group(self, group_id, new_nodes, new_couple, manual=False):
group = self.state[group_id]
if new_nodes:
new_nodes_state = {'set': new_nodes,
'timestamp': time.time()}
if manual:
new_nodes_state['manual'] = True
group['nodes'].append(new_nodes_state)
if new_couple:
new_couples_state = {'couple': new_couple,
'timestamp': time.time()}
group['couples'].append(new_couples_state)
eid = elliptics.Id(keys.MM_ISTRUCT_GROUP % group_id)
logger.info('Updating state for group %s' % group_id)
self.meta_session.update_indexes(eid, [keys.MM_GROUPS_IDX],
[self._serialize(group)])
def combine_logs(remotes, groups, min_write, keys, new_key):
elog = elliptics.Logger("/dev/stderr", 0)
cfg = elliptics.Config()
cfg.config.wait_timeout = 60
cfg.config.check_timeout = 60
cfg.config.io_thread_num = 16
cfg.config.nonblocking_io_thread_num = 16
cfg.config.net_thread_num = 16
node = elliptics.Node(elog, cfg)
for r in remotes:
try:
node.add_remote(addr=r[0], port=r[1], family=r[2])
except Exception as e:
print "Coudn't connect to elliptics node: {0}: {1}".format(r, e)
log_s = elliptics.Session(node)
log_s.set_groups(groups)
log_s.set_ioflags(elliptics.io_flags.append)
index_s = elliptics.Session(node)
index_s.set_groups(groups)
index_s.set_ioflags(elliptics.io_flags.cache)
users = Set()
print "Keys: {0}".format(keys)
for key in keys:
try:
users.update(process_key(key, log_s, index_s, new_key))
except Exception as e:
print "Process key failed: {0}".format(e)
print "Users: {0}".format(users)
for u in users:
try:
index_s.update_indexes(elliptics.Id(u), [new_key + ".0"], [u])
except Exception as e:
print "Update_indexes failed: {0}".format(e)
def _remove_bad_keys(self, responses):
'''
Removes invalid keys with older timestamp or invalid checksum.
'''
bad_keys = []
for key, responses in responses.iteritems():
for response in responses:
if self._check_bad_key(response):
bad_keys.append((key, ) + response)
status, address, backend_id = response
if status == -errno.EILSEQ:
self.ctx.corrupted_keys.write(
'{key} {group} {address}/{backend_id}\n'.format(
key=key,
group=self.group,
address=address,
backend_id=backend_id))
for attempt in range(self.ctx.attempts):
if not bad_keys:
break
results = []
for key, _, addr, backend_id in bad_keys:
self.remove_session.set_direct_id(addr, backend_id)
result = self.remove_session.remove(elliptics.Id(key))
results.append(result)
timeouted_keys = []
is_last_attempt = (attempt == self.ctx.attempts - 1)
for i, r in enumerate(results):
status = r.get()[0].status
log.info(
"Removing key: {0}, status: {1}, last attempt: {2}".format(
bad_keys[i], status, is_last_attempt))
if status:
self.stats_cmd.counter("remove.{0}".format(status), 1)
self.stats_cmd_groups.counter(
"remove.{0}.{1}".format(self.group, status), 1)
if status == -errno.ETIMEDOUT:
timeouted_keys.append(bad_keys[i])
bad_keys = timeouted_keys
def dump_process_group((ctx, group)):
log.debug("Processing group: {0}".format(group))
stats = ctx.stats['group_{0}'.format(group)]
stats.timer('process', 'started')
if group not in ctx.routes.groups():
log.error("Group: {0} is not presented in route list".format(group))
return False
elog = elliptics.Logger(ctx.log_file, int(ctx.log_level))
node = elliptics_create_node(address=ctx.address,
elog=elog,
wait_timeout=ctx.wait_timeout,
net_thread_num=1,
io_thread_num=1,
remotes=ctx.remotes)
ret = True
with open(ctx.dump_file, 'r') as dump:
ss_rec = ServerSendRecovery(ctx, node, group)
# splits ids from dump file in batchs and recovers it
for batch_id, batch in groupby(enumerate(dump),
key=lambda x: x[0] / ctx.batch_size):
recovers = []
rs = RecoverStat()
keys = [elliptics.Id(val) for _, val in batch]
keys = ss_rec.recover(keys)
for k in keys:
rec = DumpRecover(routes=ctx.routes,
node=node,
id=k,
group=group,
ctx=ctx)
recovers.append(rec)
rec.run()
for r in recovers:
r.wait()
ret &= r.succeeded()
rs += r.stats
rs.apply(stats)
stats.timer('process', 'finished')
return ret
def _parallel_read(self, requests):
results = {}
for session, result_key, key in requests:
if callable(session):
session = session()
# read_latest_async is for elliptics 2.24.14.15, in later versions
# read_data returns AsyncResult object
self.__logging.debug('Request to read {0} for groups {1}'.format(
key.replace('\0', '\\0'), result_key))
read = getattr(session, 'read_latest_async', session.read_data)
try:
results[result_key] = read(elliptics.Id(key))
except Exception as e:
self.__logging.error('Failed to read {0} for groups '
'{1}: {2}, {3}'.format(
key, result_key, str(e),
traceback.format_exc()))
pass
return results
def _check_server_send_results(self, iterator, key_infos_map, group_id):
'''
Check result of remote sending for every key.
Returns lists of timeouted keys and corrupted keys.
'''
start_time = time.time()
recovers_in_progress = len(key_infos_map)
timeouted_keys = []
corrupted_keys = []
succeeded_keys = set()
index = 0
for index, result in enumerate(iterator, 1):
status = result.status
self._update_stats(start_time, index, recovers_in_progress, status)
key = result.key
if status < 0:
key_infos = key_infos_map[str(key)]
self._on_server_send_fail(status, key, key_infos,
timeouted_keys, corrupted_keys,
group_id)
continue
elif status == 0:
succeeded_keys.add(str(key))
log.debug("Recovered key: %s, status %d", result.key, status)
if index < recovers_in_progress:
log.error(
"Server-send operation failed: group_id: %d, received results: %d, expected: %d, error: %s",
group_id, index, recovers_in_progress, iterator.error())
self._update_stats(start_time, index, recovers_in_progress,
iterator.error().code)
timeouted_keys = [
elliptics.Id(k) for k in key_infos_map.iterkeys()
if k not in succeeded_keys
]
return timeouted_keys, corrupted_keys
def process_key(key, log_s, index_s, new_key):
res = index_s.find_any_indexes([key + str(x) for x in range(1000)])
users = Set()
for r in res:
for ind, data in r.indexes:
users.add(data)
print "Users: {0}".format(users)
async_reads = []
for u in users:
try:
k = u + "." + key
print "Read latest: {0}".format(k)
async_reads.append((log_s.read_latest(k), u))
except Exception as e:
print "Read latest async failed: {0}".format(e)
for r, u in async_reads:
try:
k = u + "." + new_key
r.wait()
result = r.get()[0]
print "Write: {0}".format(k)
io = elliptics.IoAttr()
io.id = elliptics.Id(k)
io.timestamp = elliptics.Time(0, 0)
io.user_flags = 0
write_result = log_s.write_data(io, result.data)
write_result.wait()
print "Write is {0}".format(write_result.successful())
except Exception as e:
print "Write data async failed: {0}".format(e)
return users
def _history_entry_update(self, state):
try:
uid = state['uid']
logger.debug('Started updating minion history entry '
'for command {0}'.format(uid))
update_history_entry = False
try:
eid = elliptics.Id(keys.MINION_HISTORY_ENTRY_KEY %
uid.encode('utf-8'))
# set to read_latest when it raises NotFoundError on non-existent keys
r = self.meta_session.read_data(eid).get()[0]
history_state = self._unserialize(r.data)
self.history[uid] = history_state['progress']
# updating if process is finished
if int(self.history[uid]) != int(state['progress']):
update_history_entry = True
except elliptics.NotFoundError:
logger.debug('History state is not found')
update_history_entry = True
if update_history_entry:
logger.info(
'Updating minion history entry for command {0}'.format(
uid))
start = datetime.datetime.fromtimestamp(state['start_ts'])
key = keys.MINION_HISTORY_KEY % start.strftime('%Y-%m')
self.meta_session.update_indexes(eid, [key],
[self._serialize(state)])
self.history[uid] = state['progress']
else:
logger.debug('Update for minion history entry '
'of command {0} is not required'.format(uid))
except Exception as e:
logger.error('Failed to update minion history entry for '
'uid {0}: {1}\n{2}'.format(uid, str(e),
traceback.format_exc()))
n.add_remotes("localhost:1025:2")
s = elliptics.Session(n)
s.add_groups([1, 2, 3])
group = 1
try:
obj = "qwerty.xml"
addr = s.lookup_address(obj, group)
print "object", obj, "should live at", addr, "in group", group
except Exception as e:
print "Failed to lookup in group", group, ":", e
id = elliptics.Id([1, 2, 3, 4], 1)
# write data by ID into specified group (# 2)
# read data from the same group (# 2)
try:
data = '1234567890qwertyuio'
s.write_data(id, data, 0).wait()
print "WRITE:", data
except Exception as e:
print "Failed to write data by id:", e
try:
res = s.read_data(id, 0, 0).get()[0]
print " READ:", res.data
except Exception as e:
print "Failed to read data by id:", e
def range(key_begin, key_end):
ret = elliptics.IteratorRange()
ret.key_begin = elliptics.Id(key_begin, 0)
ret.key_end = elliptics.Id(key_end, 0)
return ret
if __name__ == '__main__':
log = elliptics.Logger("/dev/stderr", 1)
cfg = elliptics.Config()
cfg.cookie = "0123456789012345678901234567890123456789"
cfg.config.wait_timeout = 60
n = elliptics.Node(log, cfg)
n.add_remote("localhost", 1025)
s = elliptics.Session(n)
s.add_groups([2])
ranges = [
range(elliptics.Id([0] * 64, 0), elliptics.Id([100] + [255] * 63, 0)),
range(elliptics.Id([200] + [0] * 63, 0),
elliptics.Id([220] + [255] * 63, 0))
]
eid = elliptics.Id([0] * 64, 2)
iterator = s.start_iterator(eid, ranges, \
elliptics.iterator_types.network, \
elliptics.iterator_flags.key_range \
| elliptics.iterator_flags.ts_range \
| elliptics.iterator_flags.data, \
elliptics.Time(0, 0), \
elliptics.Time(2**64-1, 2**64-1))
for i, result in enumerate(iterator):
if result.status != 0:
def parse_args():
from optparse import OptionParser
ctx = Ctx()
parser = OptionParser()
parser.usage = "%prog type [options]"
parser.description = __doc__
parser.add_option("-g",
"--groups",
action="store",
dest="groups",
default=None,
help="Comma separated list of groups [default: all]")
parser.add_option(
"-l",
"--log",
dest="log",
default='/dev/stderr',
metavar="FILE",
help="Output log messages from library to file [default: %default]")
parser.add_option("-L",
"--log-level",
action="store",
dest="log_level",
default="1",
help="Elliptics client verbosity [default: %default]")
parser.add_option("-r",
"--remote",
action="append",
dest="remote",
help="Elliptics node address [default: %default]")
parser.add_option(
"-d",
"--data",
action="store_true",
dest="data",
default=False,
help="Requests object's data with other info [default: %default]")
parser.add_option("-k",
"--key-begin",
action="store",
dest="key_begin",
default=None,
help="Begin key of range for iterating")
parser.add_option("-K",
"--key-end",
action="store",
dest="key_end",
default=None,
help="End key of range for iterating")
parser.add_option("-t",
"--time-begin",
action="store",
dest="time_begin",
default=None,
help="Begin timestamp of time range for iterating")
parser.add_option("-T",
"--time-end",
action="store",
dest="time_end",
default=None,
help="End timestamp of time range for iterating")
parser.add_option(
"-M",
"--no-meta",
action="store_true",
dest="no_meta",
default=False,
help=
"Run iterator without metadata (timestamp and user flags). This option conflicts with --data and --time-*, if one of them is specified, --no-meta will have no effect."
)
parser.add_option(
"-A",
"--addr",
action="store",
dest="route_addr",
default=None,
help=
"Address to lookup in route file. This address will be used to determine iterator ranges - ranges which DO NOT belong to selected node."
)
parser.add_option(
"-R",
"--route-file",
action="store",
dest="route_file",
default=None,
help=
"Route file contains 'dnet_balance' tool's output - route table dump, which will be parsed to find out ranges which DO NOT belong to selected address."
)
(options, args) = parser.parse_args()
if len(args) > 1:
raise ValueError("Too many arguments passed: {0}, expected: 1".format(
len(args)))
elif len(args) == 0:
raise ValueError(
"Please specify one of following modes: {0}".format(ALLOWED_MODES))
if args[0].lower() not in ALLOWED_MODES:
raise ValueError("Unknown mode: '{0}', allowed: {1}".format(
args[0], ALLOWED_MODES))
ctx.iterate_mode = args[0].lower()
try:
if options.groups:
ctx.groups = map(int, options.groups.split(','))
else:
ctx.groups = []
except Exception as e:
raise ValueError("Can't parse grouplist: '{0}': {1}".format(
options.groups, repr(e)))
print("Using group list: {0}".format(ctx.groups))
try:
ctx.log_file = options.log
ctx.log_level = int(options.log_level)
except Exception as e:
raise ValueError("Can't parse log_level: '{0}': {1}".format(
options.log_level, repr(e)))
print("Using elliptics client log level: {0}".format(ctx.log_level))
if not options.remote:
raise ValueError(
"Please specify at least one remote address (-r option)")
try:
ctx.remotes = []
for r in options.remote:
ctx.remotes.append(elliptics.Address.from_host_port_family(r))
print("Using remote host:port:family: {0}".format(ctx.remotes[-1]))
except Exception as e:
raise ValueError("Can't parse host:port:family: '{0}': {1}".format(
options.remote, repr(e)))
ctx.no_meta = options.no_meta
try:
if options.time_begin:
ctx.time_begin = Time.from_epoch(options.time_begin)
else:
ctx.time_begin = None
except Exception as e:
raise ValueError("Can't parse timestamp: '{0}': {1}".format(
options.timestamp, repr(e)))
print("Using time_begin: {0}".format(ctx.time_begin))
try:
if options.time_end:
ctx.time_end = Time.from_epoch(options.time_end)
else:
ctx.time_end = None
except Exception as e:
raise ValueError("Can't parse timestamp: '{0}': {1}".format(
options.timestamp, repr(e)))
print("Using time_end: {0}".format(ctx.time_end))
ctx.data = options.data
key_range = elliptics.IteratorRange()
try:
if options.key_begin == '-1':
key_range.key_begin = elliptics.Id([255] * 64, 0)
elif options.key_begin:
key_range.key_begin = elliptics.Id(transf(options.key_begin), 0)
except Exception as e:
raise ValueError("Can't parse key_begin: '{0}': {1}".format(
options.key_begin, repr(e)))
try:
if options.key_end == '-1':
key_range.key_end = elliptics.Id([255] * 64, 0)
elif options.key_end:
key_range.key_end = elliptics.Id(transf(options.key_end), 0)
except Exception as e:
raise ValueError("Can't parse key_end: '{0}': {1}".format(
options.key_end, repr(e)))
ctx.ranges = []
if options.key_begin or options.key_end:
ctx.ranges = [key_range]
try:
if options.route_file and options.route_addr:
ranges = parse_route_ranges(options.route_file, options.route_addr)
ctx.ranges += ranges
except Exception as e:
raise ValueError(
"Can't parse route_file '{0}' and route_addr '{1}' options: {2}".
format(options.route_file, options.route_addr, repr(e)))
return ctx
if __name__ == '__main__':
ctx = parse_args()
ctx.elog = elliptics.Logger(ctx.log_file, ctx.log_level)
ctx.node = elliptics.Node(ctx.elog)
ctx.node.add_remotes(ctx.remotes)
ctx.session = elliptics.Session(ctx.node)
ctx.session.set_timeout(60)
if ctx.groups:
ctx.session.groups = ctx.groups
else:
ctx.session.groups = ctx.session.routes.groups()
#print ctx.session.routes
if ctx.iterate_mode == MODE_NODES:
for r in ctx.remotes:
eid = elliptics.Id([0] * 64, 0)
if len(ctx.ranges) != 0:
eid = ctx.ranges[0].key_begin
iterate_node(ctx, r, eid)
elif ctx.iterate_mode == MODE_GROUP:
iterate_groups(ctx)
else:
raise RuntimeError("Unknown iteration mode '{0}' ".format(
ctx.iterate_mode))
exit(0)
test_ind = "test_ind_" + str(rnd)
test_data = "test_data_" + str(rnd)
sys.path.insert(0, "bindings/python/")
import elliptics
elog = elliptics.Logger("/dev/stderr", 0)
cfg = elliptics.Config()
node = elliptics.Node(elog, cfg)
node.add_remote("localhost", 1025)
s = elliptics.Session(node)
s.set_groups([1])
r = s.set_indexes(elliptics.Id(test_id), [test_ind], [test_data])
r.wait()
assert r.successful()
r = s.find_any_indexes([test_ind])
r.wait()
assert r.successful()
assert len(r.get()) >= 1
assert r.get()[0].indexes[0].data == test_data
r = s.find_all_indexes([test_ind])
r.wait()
assert r.successful()
assert len(r.get()) >= 1
assert r.get()[0].indexes[0].data == test_data
def route(self, key):
return elliptics.Route(id=elliptics.Id(key, self.group_id),
address=self.address,
backend_id=self.backend_id)
def get(self, shift):
'''
Returns elliptics.Id got by shifting base_key
'''
return elliptics.Id('%x' % (self.__base_key__ + shift))
def lookup_keys(ctx):
log.info("Start looking up keys")
stats = ctx.stats["lookup"]
stats_cmd = ctx.stats['commands']
stats.timer('process', 'started')
elog = elliptics.Logger(ctx.log_file, int(ctx.log_level), True)
node = elliptics_create_node(address=ctx.address,
elog=elog,
wait_timeout=ctx.wait_timeout,
flags=elliptics.config_flags.no_route_list,
net_thread_num=1,
io_thread_num=1,
remotes=ctx.remotes)
session = elliptics.newapi.Session(node)
session.trace_id = ctx.trace_id
session.exceptions_policy = elliptics.exceptions_policy.no_exceptions
session.set_filter(elliptics.filters.all_final)
filename = os.path.join(ctx.tmp_dir, 'merged')
uncommitted_filename = os.path.join(ctx.tmp_dir, 'uncommitted')
merged_keys = MergedKeys(filename, uncommitted_filename, None,
ctx.prepare_timeout, ctx.safe, False)
with open(ctx.dump_file, 'r') as dump_f, open(filename, 'w') as merged_file, \
open(uncommitted_filename, 'w') as uncommitted_file:
for str_id in dump_f:
id = elliptics.Id(str_id)
lookups = []
for g in ctx.groups:
session.groups = [g]
lookups.append(session.lookup(id))
key_infos = []
for i, l in enumerate(lookups):
result = l.get()[0]
status = result.status
if status == 0:
address = result.address
key_infos.append(
KeyInfo(address, ctx.groups[i],
result.record_info.data_timestamp,
result.record_info.data_size,
result.record_info.user_flags,
result.record_info.record_flags,
result.record_info.data_offset, 0)) # blob_id
else:
log.debug(
"Failed to lookup key: {0} in group: {1}: {2}".format(
id, ctx.groups[i], status))
stats_cmd.counter('lookup.{0}'.format(status), 1)
stats.counter("lookups", -1)
if len(key_infos) > 0:
key_infos.sort(key=lambda x:
(x.timestamp, x.size, x.user_flags),
reverse=True)
key_data = (id, key_infos)
if not skip_key_data(ctx, key_data):
merged_keys.on_key_data(key_data, merged_file,
uncommitted_file, None)
stats.counter("lookups", len(key_infos))
else:
log.error(
"Key: {0} is missing in all specified groups: {1}. It won't be recovered."
.format(id, ctx.groups))
stats.timer('process', 'finished')
return merged_keys
def __getitem__(self, key):
eid = elliptics.Id(self.key_tpl % key)
return self.meta_session.list_indexes(eid).get()[0].data
def __setitem__(self, key, val):
eid = elliptics.Id(self.key_tpl % key)
self.meta_session.set_indexes(eid, [self.idx], [val])
def parse_args():
from optparse import OptionParser
ctx = Ctx()
parser = OptionParser()
parser.usage = "%prog type [options]"
parser.description = __doc__
parser.add_option("-g", "--groups", action="store", dest="groups", default=None,
help="Comma separated list of groups [default: all]")
parser.add_option("-l", "--log", dest="log", default='/dev/stderr', metavar="FILE",
help="Output log messages from library to file [default: %default]")
parser.add_option("-L", "--log-level", action="store", dest="log_level", default="1",
help="Elliptics client verbosity [default: %default]")
parser.add_option("-r", "--remote", action="append", dest="remote",
help="Elliptics node address [default: %default]")
parser.add_option("-d", "--data", action="store_true", dest="data", default=False,
help="Requests object's data with other info [default: %default]")
parser.add_option("-k", "--key-begin", action="store", dest="key_begin", default="0",
help="Begin key of range for iterating")
parser.add_option("-K", "--key-end", action="store", dest="key_end", default="-1",
help="End key of range for iterating")
parser.add_option("-t", "--time-begin", action="store", dest="time_begin", default=None,
help="Begin timestamp of time range for iterating")
parser.add_option("-T", "--time-end", action="store", dest="time_end", default=None,
help="End timestamp of time range for iterating")
(options, args) = parser.parse_args()
if len(args) > 1:
raise ValueError("Too many arguments passed: {0}, expected: 1"
.format(len(args)))
elif len(args) == 0:
raise ValueError("Please specify one of following modes: {0}"
.format(ALLOWED_MODES))
if args[0].lower() not in ALLOWED_MODES:
raise ValueError("Unknown mode: '{0}', allowed: {1}"
.format(args[0], ALLOWED_MODES))
ctx.iterate_mode = args[0].lower()
try:
if options.groups:
ctx.groups = map(int, options.groups.split(','))
else:
ctx.groups = []
except Exception as e:
raise ValueError("Can't parse grouplist: '{0}': {1}".format(
options.groups, repr(e)))
print("Using group list: {0}".format(ctx.groups))
try:
ctx.log_file = options.log
ctx.log_level = int(options.log_level)
except Exception as e:
raise ValueError("Can't parse log_level: '{0}': {1}"
.format(options.log_level, repr(e)))
print("Using elliptics client log level: {0}".format(ctx.log_level))
if not options.remote:
raise ValueError("Please specify at least one remote address (-r option)")
try:
ctx.remotes = []
for r in options.remote:
ctx.remotes.append(elliptics.Address.from_host_port_family(r))
print("Using remote host:port:family: {0}".format(ctx.remotes[-1]))
except Exception as e:
raise ValueError("Can't parse host:port:family: '{0}': {1}"
.format(options.remote, repr(e)))
try:
if options.time_begin:
ctx.time_begin = Time.from_epoch(options.time_begin)
else:
ctx.time_begin = None
except Exception:
raise ValueError("Can't parse timestamp: '{0}': {1}"
.format(options.timestamp, repr(e)))
print("Using time_begin: {0}".format(ctx.time_begin))
try:
if options.time_end:
ctx.time_end = Time.from_epoch(options.time_end)
else:
ctx.time_end = None
except Exception:
raise ValueError("Can't parse timestamp: '{0}': {1}"
.format(options.timestamp, repr(e)))
print("Using time_end: {0}".format(ctx.time_end))
ctx.data = options.data
key_range = elliptics.IteratorRange()
try:
if options.key_begin == '-1':
key_range.key_begin = elliptics.Id([255] * 64, 0)
elif options.key_begin:
key_range.key_begin = elliptics.Id(transf(options.key_begin), 0)
else:
key_range.key_begin = elliptics.Id([0] * 64, 0)
except Exception:
raise ValueError("Can't parse key_begin: '{0}': {1}"
.format(options.key_begin, repr(e)))
try:
if options.key_end == '-1':
key_range.key_end = elliptics.Id([255] * 64, 0)
elif options.key_end:
key_range.key_end = elliptics.Id(transf(options.key_end), 0)
else:
key_range.key_end = elliptics.Id([255] * 64, 0)
except Exception:
raise ValueError("Can't parse key_end: '{0}': {1}"
.format(options.key_end, repr(e)))
ctx.ranges = [key_range]
return ctx
def distribute(self, top):
""" Distributes top keys among available cache groups.
Parameter "top" is a map of key id to key top statistics:
{('123', '42:69'): {'groups': [42, 69],
'couple': '42:69',
'ns': 'magic',
'size': 31415,
'id': 123,
'size': 1024, # approximate size of key traffic
'frequency': 2, # approximate number of key events
'period': 1 # statistics collection period
}, ...
}"""
self._update_cache_groups()
top = self._filter_by_bandwidth(top)
logger.info('Keys after applying bandwidth filter: {0}'.format(
[elliptics.Id(key_k[0].encode('utf-8')) for key_k in top]))
# update currently distributed keys
logger.info('Updating already distributed keys')
for key in self._get_distributed_keys():
copies_diff, key_stat = self._key_copies_diff(key, top)
top.pop((key['id'], key['couple']), None)
if copies_diff <= 0:
logger.info(
'Key {}, couple {}, bandwidth {}; '
'cached, extra copies: {}, skipped'.format(
key['id'], key['couple'],
mb_per_s(_key_bw(key_stat)), -copies_diff))
continue
logger.info(
'Key {}, couple {}, bandwidth {}; '
'cached, expanding to {} more '
'copies'.format(
key['id'], key['couple'],
mb_per_s(_key_bw(key_stat)), copies_diff))
with self._cache_groups_lock:
try:
self._update_key(key, key_stat, copies_diff)
except Exception:
logger.exception(
'Key {}, couple {}: failed to expand'.format(
key['id'], key['couple']))
continue
# process new keys
logger.info('Distributing new keys')
for (key_id, key_couple), key_stat in top.iteritems():
try:
key = self._new_key(key_stat)
except Exception as e:
logger.exception(
'Key {}, couple {}: failed to create new key record, '
'{}:'.format(key_id, key_couple, e))
continue
copies_diff, key_stat = self._key_copies_diff(key, top)
if copies_diff == 0:
logger.info(
'Key {}, couple {}, bandwidth {}; not cached, '
'does not require cache copies, skipped'.format(
key['id'], key['couple'], mb_per_s(_key_bw(key_stat))))
continue
logger.info(
'Key {}, couple {}, bandwidth {}; not cached, '
'expanding to {} copies'.format(
key['id'], key['couple'],
mb_per_s(_key_bw(key_stat)), copies_diff))
with self._cache_groups_lock:
try:
self._update_key(key, key_stat, copies_diff)
except Exception:
logger.exception(
'Key {}, couple {}: failed to expand'.format(
key['id'], key['couple']))
continue
def load_key_data_from_file(keys_file):
import msgpack
unpacker = msgpack.Unpacker(keys_file)
for data in unpacker:
yield (elliptics.Id(data[0], 0), tuple(KeyInfo.load(d) for d in data[1]))