def provide_batch(self):
if self.done:
return 0, None
batch = pump.Batch(self)
if self.file_iter == None:
self.f = self.spec.replace(JSON_SCHEME, "")
files = list()
if os.path.isfile(self.f) and self.f.endswith(".zip"):
zfobj = zipfile.ZipFile(self.f)
self.working_dir = tempfile.mkdtemp()
ZipUtil(zfobj).extractall(self.working_dir)
JSONSource.enumerate_files(self.working_dir, files, False)
elif os.path.isdir(self.f):
JSONSource.enumerate_files(self.f, files, False)
else:
try:
fp = open(self.f, 'r')
dockey = JSONSource.gen_dockey(os.path.basename(self.f))
self.save_doc(batch, dockey, fp, True)
fp.close()
except IOError, error:
return "error: could not open json: %s; exception: %s" % \
(self.f, e), None
self.done = True
return 0,batch
if len(files) > 0:
self.file_iter = iter(files)
def provide_batch(self):
"""Provides a batch of messages, with GET/SET ratios and keys
controlled by a mcsoda-inspired approach, but simpler."""
if self.done:
return 0, None
cfg = self.source_map['cfg']
prefix = cfg['prefix']
max_items = cfg['max-items']
ratio_sets = cfg['ratio-sets']
exit_after_creates = cfg['exit-after-creates']
json = cfg['json']
if not self.body:
min_value_body = "0" * cfg['min-value-size']
if json:
self.body = '{"name": "%s%s", "age": %s, "index": %s,' + \
' "body": "%s"}' % min_value_body
else:
self.body = min_value_body
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if ratio_sets >= float(self.cur_sets) / float(self.cur_ops or 1):
self.cur_sets = self.cur_sets + 1
cmd = memcacheConstants.CMD_TAP_MUTATION
if self.cur_items < max_items:
key = self.cur_items
self.cur_items = self.cur_items + 1
else:
key = self.cur_sets % self.cur_items
else:
self.cur_gets = self.cur_gets + 1
cmd = memcacheConstants.CMD_GET
key = self.cur_gets % self.cur_items
self.cur_ops = self.cur_ops + 1
if json:
value = self.body % (prefix, key, key % 101, key)
else:
value = self.body
msg = (cmd, vbucket_id, prefix + str(key), flg, exp, cas, '',
value)
batch.append(msg, len(value))
if exit_after_creates and self.cur_items >= max_items:
self.done = True
return 0, batch
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_batch(
self
) -> Tuple[couchbaseConstants.PUMP_ERROR, Optional[pump.Batch]]:
if self.done:
return 0, None
if not self.r:
try:
self.r = csv.reader(open(self.spec, 'r', encoding='utf-8'))
self.fields = next(self.r)
if not 'id' in self.fields:
return f'error: no \'id\' field in 1st line of csv: {self.spec}', None
except StopIteration:
return f'error: could not read 1st line of csv: {self.spec}', None
except IOError as e:
return f'error: could not open csv: {self.spec}; exception: {e!s}', None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
cmd = couchbaseConstants.CMD_TAP_MUTATION
vbucket_id = 0x0000ffff
while (self.r and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
try:
vals = next(self.r)
doc = {}
for i, field in enumerate(self.fields):
if i >= len(vals):
continue
if field == 'id':
doc[field] = vals[i]
else:
doc[field] = number_try_parse(vals[i])
if doc['id']:
msg: couchbaseConstants.BATCH_MSG = (cmd, vbucket_id,
doc['id'].encode(), 0,
0, 0, b'',
literal_eval(
doc['value']), 0,
0, 0, 0)
batch.append(msg, len(doc))
except StopIteration:
self.done = True
self.r = None
except Exception as e:
logging.error(f'error: fails to read from csv file {e}')
continue
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_batch(self):
if self.done:
return 0, None
if not self.r:
try:
self.r = csv.reader(open(self.spec, 'r', encoding='utf-8'))
self.fields = next(self.r)
if not 'id' in self.fields:
return ("error: no 'id' field in 1st line of csv: %s" %
(self.spec)), None
except StopIteration:
return ("error: could not read 1st line of csv: %s" %
(self.spec)), None
except IOError as e:
return ("error: could not open csv: %s; exception: %s" %
(self.spec, e)), None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
cmd = couchbaseConstants.CMD_TAP_MUTATION
vbucket_id = 0x0000ffff
while (self.r and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
try:
vals = next(self.r)
doc = {}
for i, field in enumerate(self.fields):
if i >= len(vals):
continue
if field == 'id':
doc[field] = vals[i]
else:
doc[field] = number_try_parse(vals[i])
if doc['id']:
msg = (cmd, vbucket_id, doc['id'], 0, 0, 0, '',
doc['value'], 0, 0, 0, 0)
batch.append(msg, len(doc))
except StopIteration:
self.done = True
self.r = None
except Exception as e:
logging.error("error: fails to read from csv file, %s", e)
continue
if batch.size() <= 0:
return 0, None
return 0, batch
def change_callback(doc_info):
if doc_info:
# Handle the new key name spacing for collections and co
cid, key = decodeCollectionID(doc_info.id.encode())
# Only support keys in the _default collection
if cid != 0:
logging.debug('Skipping as not default collection')
return
if self.skip(key, vbucket_id):
return
if doc_info.deleted:
cmd = couchbaseConstants.CMD_DCP_DELETE
val = b''
else:
cmd = couchbaseConstants.CMD_DCP_MUTATION
val = doc_info.getContents(
options=couchstore.CouchStore.DECOMPRESS)
try:
rev_meta_bytes = doc_info.revMeta.get_bytes()
if len(rev_meta_bytes) == 18:
conf_res = 0
cas, exp, flg, flex_meta, dtype = struct.unpack(
SFD_REV_META, rev_meta_bytes)
elif len(rev_meta_bytes) == 19:
cas, exp, flg, flex_meta, dtype, conf_res = struct.unpack(
SFD_REV_META_PRE_4_6, rev_meta_bytes)
else:
raise ValueError(
'Does not match pre- or post-4.6 format')
meta = bytes([doc_info.revSequence])
seqno = doc_info.sequence
nmeta = 0
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val,
seqno, dtype, nmeta, conf_res)
abatch[0].append(msg, len(val))
except Exception as e:
self.queue.put((
f'error: could not read couchstore file due to unsupported file format version;'
f' exception: {e}', None))
return
if (abatch[0].size() >= batch_max_size
or abatch[0].bytes >= batch_max_bytes):
self.queue.put((0, abatch[0]))
abatch[0] = pump.Batch(self)
def provide_batch(
self
) -> Tuple[couchbaseConstants.PUMP_ERROR, Optional[pump.Batch]]:
if self.done:
return 0, None
# During the first iteration load the file names, this is only run once
if not self.docs:
self.prepare_docs()
batch = pump.Batch(self)
f = self.spec.replace(JSON_SCHEME, "")
batch_max_size = self.opts.extra['batch_max_size']
# Each iteration should return a batch or mark the loading a finished
if os.path.isfile(f) and f.endswith(".zip"):
zf = zipfile.ZipFile(f)
while batch.size() < batch_max_size and self.docs:
path = self.docs.pop()
key = os.path.basename(path)
if key.endswith('.json'):
key = key[:-5]
value = zf.read(path)
self.save_doc(batch, key, value)
zf.close()
else:
while batch.size() < batch_max_size and self.docs:
path = self.docs.pop()
key = os.path.basename(path)
if key.endswith('.json'):
key = key[:-5]
try:
fp = open(path, 'rb')
value = fp.read()
fp.close()
self.save_doc(batch, key.encode(), value)
except IOError as error:
logging.error(
f'Fail to load json file with error: {error!s}')
if not self.docs:
self.done = True
return 0, batch
def change_callback(doc_info):
if doc_info:
key = doc_info.id
if self.skip(key, vbucket_id):
return
if doc_info.deleted:
cmd = memcacheConstants.CMD_TAP_DELETE
val = ''
else:
cmd = memcacheConstants.CMD_TAP_MUTATION
val = doc_info.getContents(
options=couchstore.CouchStore.DECOMPRESS)
cas, exp, flg = struct.unpack(SFD_REV_META, doc_info.revMeta)
meta = struct.pack(SFD_REV_SEQ, doc_info.revSequence)
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val)
abatch[0].append(msg, len(val))
if (abatch[0].size() >= batch_max_size
or abatch[0].bytes >= batch_max_bytes):
self.queue.put((0, abatch[0]))
abatch[0] = pump.Batch(self)
def loader(self):
rv, d = data_dir(self.spec)
if rv != 0:
self.queue.put((rv, None))
return
source_vbucket_state = \
getattr(self.opts, 'source_vbucket_state', 'active')
source_nodes = self.source_bucket['nodes']
if len(source_nodes) != 1:
self.queue.put((
f'error: expected 1 node in source_bucket: {self.source_bucket["name"]}',
None))
return
vbucket_states = source_nodes[0].get('vbucket_states', None)
if not vbucket_states:
self.queue.put((
f'error: missing vbucket_states in source_bucket: {self.source_bucket["name"]}',
None))
return
vbuckets = vbucket_states.get(source_vbucket_state, None)
if vbuckets is None: # Empty dict is valid.
self.queue.put((
f'error: missing vbuckets in source_bucket: {self.source_bucket["name"]}',
None))
return
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
store = None
vbucket_id = None
# Level of indirection since we can't use python 3 nonlocal statement.
abatch: List[pump.Batch] = [pump.Batch(self)]
def change_callback(doc_info):
if doc_info:
# Handle the new key name spacing for collections and co
cid, key = decodeCollectionID(doc_info.id.encode())
# Only support keys in the _default collection
if cid != 0:
logging.debug('Skipping as not default collection')
return
if self.skip(key, vbucket_id):
return
if doc_info.deleted:
cmd = couchbaseConstants.CMD_DCP_DELETE
val = b''
else:
cmd = couchbaseConstants.CMD_DCP_MUTATION
val = doc_info.getContents(
options=couchstore.CouchStore.DECOMPRESS)
try:
rev_meta_bytes = doc_info.revMeta.get_bytes()
if len(rev_meta_bytes) == 18:
conf_res = 0
cas, exp, flg, flex_meta, dtype = struct.unpack(
SFD_REV_META, rev_meta_bytes)
elif len(rev_meta_bytes) == 19:
cas, exp, flg, flex_meta, dtype, conf_res = struct.unpack(
SFD_REV_META_PRE_4_6, rev_meta_bytes)
else:
raise ValueError(
'Does not match pre- or post-4.6 format')
meta = bytes([doc_info.revSequence])
seqno = doc_info.sequence
nmeta = 0
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val,
seqno, dtype, nmeta, conf_res)
abatch[0].append(msg, len(val))
except Exception as e:
self.queue.put((
f'error: could not read couchstore file due to unsupported file format version;'
f' exception: {e}', None))
return
if (abatch[0].size() >= batch_max_size
or abatch[0].bytes >= batch_max_bytes):
self.queue.put((0, abatch[0]))
abatch[0] = pump.Batch(self)
for f in latest_couch_files(f'{d}/{self.source_bucket["name"]}'):
vbucket_id = int(re.match(SFD_RE, os.path.basename(f)).group(1))
if not vbucket_id in vbuckets:
continue
try:
store = couchstore.CouchStore(f, 'r')
store.forEachChange(0, change_callback)
store.close()
except Exception as e:
# MB-12270: Some files may be deleted due to compaction. We can
# safely ignore them and move to next file.
pass
if abatch[0].size():
self.queue.put((0, abatch[0]))
self.queue.put((0, None))
def provide_dcp_batch_actual(
self
) -> Tuple[couchbaseConstants.PUMP_ERROR, Optional[pump.Batch]]:
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
delta_ack_size = batch_max_bytes * 10 / 4 # ack every 25% of buffer size
last_processed = 0
total_bytes_read = 0
vbid: int = 0
start_seqno: int = 0
end_seqno: int = 0
vb_uuid: int = 0
ss_start_seqno: int = 0
ss_end_seqno: int = 0
no_response_count: int = 0
try:
while (not self.dcp_done and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if self.response.empty():
if len(self.stream_list) > 0:
logging.debug(
f'no response while there {len(self.stream_list)} active streams'
)
time.sleep(.25)
no_response_count = no_response_count + 1
# if not had a response after a minimum of 30 seconds then state we are done
if no_response_count == 120:
logging.warning(
f'no response for 30 seconds while there {len(self.stream_list)}'
' active streams')
self.dcp_done = True
else:
self.dcp_done = True
continue
no_response_count = 0
unprocessed_size = total_bytes_read - last_processed
if unprocessed_size > delta_ack_size:
rv = self.ack_buffer_size(unprocessed_size)
if rv:
logging.error(rv)
else:
last_processed = total_bytes_read
cmd, errcode, opaque, cas, keylen, extlen, data, datalen, dtype, bytes_read = \
self.response.get() # type: int, int, int, int, int, int, bytes, int, int, int
total_bytes_read += bytes_read
rv = 0
metalen = flags = flg = exp = 0
key = val = ext = b''
need_ack = False
seqno = 0
if cmd == couchbaseConstants.CMD_DCP_REQUEST_STREAM:
total_bytes_read -= bytes_read
if errcode == couchbaseConstants.ERR_SUCCESS:
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
start = 0
step = DCPStreamSource.HIGH_SEQNO_BYTE + DCPStreamSource.UUID_BYTE
while start + step <= datalen:
uuid, seqno = struct.unpack(
couchbaseConstants.DCP_VB_UUID_SEQNO_PKT_FMT,
data[start:start + step])
if pair_index not in self.cur['failoverlog']:
self.cur['failoverlog'][pair_index] = {}
if opaque not in self.cur['failoverlog'][pair_index] or \
not self.cur['failoverlog'][pair_index][opaque]:
self.cur['failoverlog'][pair_index][opaque] = [
(uuid, seqno)
]
else:
self.cur['failoverlog'][pair_index][
opaque].append((uuid, seqno))
start = start + step
elif errcode == couchbaseConstants.ERR_KEY_ENOENT:
logging.warn(
"producer doesn't know about the vbucket uuid, rollback to 0"
)
vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_end_seqno = \
self.stream_list[opaque]
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_KEY_EEXISTS:
logging.warning(
f'a stream exists on the connection for vbucket: {opaque}'
)
elif errcode == couchbaseConstants.ERR_NOT_MY_VBUCKET:
logging.warning(
f'Vbucket is not active anymore, skip it:{vbid!s}')
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ERANGE:
logging.warning(
f'Start or end sequence numbers specified incorrectly,({start_seqno},'
f' {end_seqno})')
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ROLLBACK:
vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_stop_seqno = \
self.stream_list[opaque]
start_seqno, = struct.unpack(
couchbaseConstants.DCP_VB_SEQNO_PKT_FMT, data)
# find the most latest uuid, hi_seqno that fit start_seqno
if self.cur['failoverlog']:
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
if self.cur['failoverlog'][pair_index].get("vbid"):
for uuid, seqno in self.cur['failoverlog'][
pair_index][vbid]:
if start_seqno >= seqno:
vb_uuid = uuid
break
ss_start_seqno = start_seqno
ss_end_seqno = start_seqno
self.request_dcp_stream(vbid, flags, start_seqno,
end_seqno, vb_uuid,
ss_start_seqno, ss_end_seqno)
del self.stream_list[opaque]
self.stream_list[opaque] = \
(vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_end_seqno)
else:
logging.error(f'unprocessed errcode: {errcode}')
del self.stream_list[opaque]
elif cmd == couchbaseConstants.CMD_DCP_MUTATION:
vbucket_id = errcode
seqno, rev_seqno, flg, exp, locktime, metalen, nru = \
struct.unpack(couchbaseConstants.DCP_MUTATION_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
val_len = datalen - keylen - metalen - extlen
meta_start = val_start + val_len
key = data[extlen:val_start]
val = data[val_start:meta_start]
conf_res = 0
if meta_start < datalen:
# handle extra conflict resolution fields
extra_meta = data[meta_start:]
extra_index = 0
version = extra_meta[extra_index]
extra_index += 1
while extra_index < metalen:
id, extlen = struct.unpack(
couchbaseConstants.DCP_EXTRA_META_PKG_FMT,
extra_meta[extra_index:extra_index + 3])
extra_index += 3
if id == couchbaseConstants.DCP_EXTRA_META_CONFLICT_RESOLUTION:
if extlen == 1:
conf_res, = struct.unpack(
">B",
extra_meta[extra_index:extra_index +
1])
elif extlen == 2:
conf_res, = struct.unpack(
">H",
extra_meta[extra_index:extra_index +
2])
elif extlen == 4:
conf_res, = struct.unpack(
">I",
extra_meta[extra_index:extra_index +
4])
elif extlen == 8:
conf_res, = struct.unpack(
">Q",
extra_meta[extra_index:extra_index +
8])
else:
logging.error(
f'unsupported extra meta data format: {extlen:d}'
)
conf_res = 0
extra_index += extlen
if not self.skip(key, vbucket_id):
dtype, val = self.maybe_uncompress_value(dtype, val)
msg = (cmd, vbucket_id, key, flg, exp, cas,
rev_seqno.to_bytes(8, 'big'), val, seqno, dtype,
metalen, conf_res)
batch.append(msg, len(val))
self.num_msg += 1
elif cmd in [
couchbaseConstants.CMD_DCP_DELETE,
couchbaseConstants.CMD_DCP_EXPIRATION
]:
vbucket_id = errcode
seqno, rev_seqno, metalen = struct.unpack(
couchbaseConstants.DCP_DELETE_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
key = data[extlen:val_start]
# If the delete has the Xattr data type get the Xattrs from the body
if dtype & couchbaseConstants.DATATYPE_HAS_XATTR:
val = data[val_start:]
if not self.skip(key, vbucket_id):
dtype, val = self.maybe_uncompress_value(dtype, val)
msg = (cmd, vbucket_id, key, flg, exp, cas,
rev_seqno.to_bytes(8, 'big'), val, seqno, dtype,
metalen, 0)
batch.append(msg, len(val))
self.num_msg += 1
if cmd == couchbaseConstants.CMD_DCP_DELETE:
batch.adjust_size += 1
elif cmd == couchbaseConstants.CMD_DCP_FLUSH:
total_bytes_read -= bytes_read
logging.warning("stopping: saw CMD_DCP_FLUSH")
self.dcp_done = True
break
elif cmd == couchbaseConstants.CMD_DCP_END_STREAM:
del self.stream_list[opaque]
if not len(self.stream_list):
self.dcp_done = True
elif cmd == couchbaseConstants.CMD_DCP_SNAPSHOT_MARKER:
ss_start_seqno, ss_end_seqno, _ = struct.unpack(
couchbaseConstants.DCP_SNAPSHOT_PKT_FMT,
data[0:extlen])
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
if not self.cur['snapshot']:
self.cur['snapshot'] = {}
if pair_index not in self.cur['snapshot']:
self.cur['snapshot'][pair_index] = {}
self.cur['snapshot'][pair_index][opaque] = (ss_start_seqno,
ss_end_seqno)
elif cmd == couchbaseConstants.CMD_DCP_NOOP:
total_bytes_read -= bytes_read
need_ack = True
elif cmd == couchbaseConstants.CMD_DCP_BUFFER_ACK:
total_bytes_read -= bytes_read
if errcode != couchbaseConstants.ERR_SUCCESS:
logging.warning(
f'buffer ack response errcode: {errcode}')
continue
else:
total_bytes_read -= bytes_read
logging.warning(f'warning: unexpected DCP message: {cmd}')
return f'unexpected DCP message: {cmd}', batch
if need_ack:
self.ack_last = True
try:
if self.dcp_conn is not None:
self.dcp_conn._send_msg(
cmd,
b'',
b'',
opaque,
vbucket_id=0,
fmt=couchbaseConstants.RES_PKT_FMT,
magic=couchbaseConstants.RES_MAGIC_BYTE)
except socket.error:
return f'error: socket.error on sendall(); perhaps the source server:' \
f' {self.source_node["hostname"]} was rebalancing or had' \
f' connectivity/server problems', batch
except EOFError:
self.dcp_done = True
return f'error: EOFError on socket sendall(); perhaps the source server:' \
f' {self.source_node["hostname"]} was rebalancing or had ' \
f'connectivity/server problems', batch
# Close the batch when there's an ACK handshake, so
# the server can concurrently send us the next batch.
# If we are slow, our slow ACK's will naturally slow
# down the server.
self.ack_buffer_size(total_bytes_read - last_processed)
return 0, batch
self.ack_last = False
self.cmd_last = cmd
except EOFError:
if batch.size() <= 0 and self.ack_last:
# A closed conn after an ACK means clean end of TAP dump.
self.dcp_done = True
if batch.size() <= 0:
return 0, None
self.ack_buffer_size(total_bytes_read - last_processed)
return 0, batch
def provide_upr_batch_actual(self, upr_conn):
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
vbid = 0
cmd = 0
start_seqno = 0
end_seqno = 0
vb_uuid = 0
hi_seqno = 0
try:
while (not self.upr_done and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
#if not self.queue.empty():
# vbid, cmd, start_seqno, end_seqno, vb_uuid, hi_seqno = self.queue.get()
# self.request_upr_stream(vbid, 0, start_seqno, end_seqno, vb_uuid, hi_seqno)
if self.response.empty():
if len(self.stream_list) > 0:
time.sleep(.25)
else:
self.upr_done = True
continue
cmd, errcode, opaque, cas, keylen, extlen, data, datalen, dtype = \
self.response.get()
#self.recv_upr_msg(self.upr_conn.s)
#print cmd, errcode, opaque, cas, keylen, extlen, data
#assert opaque == int(vbid), "expected opaque '%s', got '%s'" % (vbid, opaque)
rv = 0
metalen = flags = flg = exp = 0
key = val = ext = ''
need_ack = False
seqno = 0
if cmd == couchbaseConstants.CMD_UPR_REQUEST_STREAM:
if errcode == couchbaseConstants.ERR_SUCCESS:
start = 0
step = UPRStreamSource.HIGH_SEQNO_BYTE + UPRStreamSource.UUID_BYTE
#while start+step <= datalen:
# uuid, seqno = struct.unpack(couchbaseConstants.UPR_VB_UUID_SEQNO_PKT_FMT, \
# data[start:start + step])
# #print "vbuuid: %s, seqno:%s" % (uuid, seqno)
# start = start + step
elif errcode == couchbaseConstants.ERR_KEY_ENOENT:
logging.warn(
"producer doesn't know about the vbucket uuid, rollback to 0"
)
vbid, flags, start_seqno, end_seqno, vb_uuid, hi_seqno = self.stream_list[
opaque]
del self.stream_list[opaque]
print vbid, flags, start_seqno, end_seqno, vb_uuid, hi_seqno
#self.request_upr_stream(vbid, flags, start_seqno, end_seqno, 0, hi_seqno)
elif errcode == couchbaseConstants.ERR_KEY_EEXISTS:
logging.warn(
"a stream exists on the connection for vbucket:%s"
% opaque)
elif errcode == couchbaseConstants.ERR_NOT_MY_VBUCKET:
logging.warn(
"Vbucket is not active anymore, skip it:%s" % vbid)
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ERANGE:
#logging.warn("Start and end sequence numbers are specified incorrectly,(%s, %s)" % \
# (start_seqno, end_seqno))
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ROLLBACK:
vbid, flags, start_seqno, end_seqno, vb_uuid, hi_seqno = self.stream_list[
opaque]
start_seqno = struck.unpack(
couchbaseConstants.UPR_VB_SEQNO_PKT_FMT, data)
logging.warn("rollback at %s" % start_seqno)
self.request_upr_stream(vbid, flags, start_seqno,
end_seqno, 0, hi_seqno)
del self.stream_list[opaque]
self.stream_list[opaque] = (vbid, flags, start_seqno,
end_seqno, vb_uuid,
hi_seqno)
elif cmd == couchbaseConstants.CMD_UPR_MUTATION:
vbucket_id = errcode
seqno, rev_seqno, flg, exp, locktime, metalen, nru = \
struct.unpack(couchbaseConstants.UPR_MUTATION_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
key = data[extlen:val_start]
val = data[val_start:]
if not self.skip(key, vbucket_id):
msg = (cmd, vbucket_id, key, flg, exp, cas, rev_seqno,
val, seqno, dtype, metalen)
#print msg
batch.append(msg, len(val))
self.num_msg += 1
elif cmd == couchbaseConstants.CMD_UPR_DELETION or \
cmd == couchbaseConstants.CMD_UPR_EXPIRATION:
vbucket_id = errcode
seqno, rev_seqno, metalen = \
struct.unpack(couchbaseConstants.UPR_DELETE_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
key = data[extlen:val_start]
if not self.skip(key, vbucket_id):
msg = (cmd, vbucket_id, key, flg, exp, cas, rev_seqno,
val, seqno, dtype, metalen)
batch.append(msg, len(val))
self.num_msg += 1
if cmd == couchbaseConstants.CMD_UPR_DELETE:
batch.adjust_size += 1
elif cmd == couchbaseConstants.CMD_UPR_FLUSH:
logging.warn("stopping: saw CMD_UPR_FLUSH")
self.upr_done = True
break
elif cmd == couchbaseConstants.CMD_UPR_END_STREAM:
del self.stream_list[opaque]
if not len(self.stream_list):
self.upr_done = True
elif cmd == couchbaseConstants.CMD_UPR_SNAPSHOT_MARKER:
logging.info("snapshot marker received, simply ignored:")
else:
logging.warn("warning: unexpected UPR message: %s" % cmd)
return "unexpected UPR message: %s" % cmd, batch
if need_ack:
self.ack_last = True
try:
upr_conn._sendMsg(
cmd,
'',
'',
opaque,
vbucketId=0,
fmt=couchbaseConstants.RES_PKT_FMT,
magic=couchbaseConstants.RES_MAGIC_BYTE)
except socket.error:
return (
"error: socket.error on send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
except EOFError:
self.upr_done = True
return (
"error: EOFError on socket send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
# Close the batch when there's an ACK handshake, so
# the server can concurrently send us the next batch.
# If we are slow, our slow ACK's will naturally slow
# down the server.
return 0, batch
self.ack_last = False
self.cmd_last = cmd
except EOFError:
if batch.size() <= 0 and self.ack_last:
# A closed conn after an ACK means clean end of TAP dump.
self.upr_done = True
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_batch(self):
"""Provides a batch of messages, with GET/SET ratios and keys
controlled by a mcsoda-inspired approach, but simpler."""
if self.done:
return 0, None
cfg = self.source_map['cfg']
prefix = cfg['prefix']
max_items = cfg['max-items']
ratio_sets = cfg['ratio-sets']
exit_after_creates = cfg['exit-after-creates']
low_compression = cfg['low-compression']
json = cfg['json']
if not self.body:
if low_compression:
# Generate a document which snappy will struggle to compress.
# Useful if your creating data-sets which utilise disk.
random.seed(
0
) # Seed to a fixed value so we always have the same document pattern.
document = ''.join(
random.choice(string.ascii_uppercase)
for _ in range(cfg['min-value-size']))
else:
# else a string of 0 is fine, but will compress very well.
document = "0" * cfg['min-value-size']
if json:
self.body = '{"name": "%s%s", "age": %s, "index": %s,' + \
' "body": "%s"}' % document
else:
self.body = document
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if ratio_sets >= float(self.cur_sets) / float(self.cur_ops or 1):
self.cur_sets = self.cur_sets + 1
cmd = couchbaseConstants.CMD_TAP_MUTATION
if self.cur_items < max_items:
key = self.cur_items
self.cur_items = self.cur_items + 1
else:
key = self.cur_sets % self.cur_items
else:
self.cur_gets = self.cur_gets + 1
cmd = couchbaseConstants.CMD_GET
key = self.cur_gets % self.cur_items
self.cur_ops = self.cur_ops + 1
if json:
value = self.body % (prefix, key, key % 101, key)
else:
value = self.body
msg = (cmd, vbucket_id, prefix + str(key), flg, exp, cas, '',
value, 0, 0, 0, 0)
batch.append(msg, len(value))
if exit_after_creates and self.cur_items >= max_items:
self.done = True
return 0, batch
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_batch(self) -> Tuple[couchbaseConstants.PUMP_ERROR, Optional[pump.Batch]]:
"""Provides a batch of messages, with GET/SET ratios and keys
controlled by a mcsoda-inspired approach, but simpler."""
if self.done:
return 0, None
cfg: Dict[str, Any] = self.source_map['cfg']
prefix: str = cfg['prefix']
max_items: int = cfg['max-items']
ratio_sets: float = cfg['ratio-sets']
exit_after_creates: bool = cfg['exit-after-creates']
low_compression: bool = cfg['low-compression']
xattrs: bool = cfg['xattr']
itr = None
collections = self.opts.collection
if collections:
itr = iter(collections)
json_body: bool = cfg['json']
if not self.body:
if low_compression:
# Generate a document which snappy will struggle to compress.
# Useful if your creating data-sets which utilise disk.
random.seed(0) # Seed to a fixed value so we always have the same document pattern.
document = ''.join(random.choice(string.ascii_uppercase) for _ in range(cfg['min-value-size']))
else:
# else a string of 0 is fine, but will compress very well.
document = "0" * cfg['min-value-size']
self.body = document
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if ratio_sets >= float(self.cur_sets) / float(self.cur_ops or 1):
self.cur_sets = self.cur_sets + 1
if xattrs:
cmd: int = couchbaseConstants.CMD_SUBDOC_MULTIPATH_MUTATION
else:
cmd = couchbaseConstants.CMD_DCP_MUTATION
if self.cur_items < max_items:
key = str(self.cur_items)
self.cur_items = self.cur_items + 1
else:
key = str(self.cur_sets % self.cur_items)
else:
self.cur_gets = self.cur_gets + 1
if xattrs:
cmd = couchbaseConstants.CMD_SUBDOC_MULTIPATH_LOOKUP
else:
cmd = couchbaseConstants.CMD_GET
key = str(self.cur_gets % self.cur_items)
self.cur_ops = self.cur_ops + 1
if json_body:
value = f'{{"name": "{prefix}{key}", "age": {int(key) % 101}, "index": "{key}", "body":"{self.body}"}}'
else:
value = self.body
if xattrs:
value = json.dumps({"obj": value, "xattr_f": "field1", "xattr_v": "\"value1\""})
value_bytes: bytes = value.encode()
# generate a collection key
if itr:
try:
cid = int(next(itr), 16)
except StopIteration:
itr = iter(collections)
cid = int(next(itr), 16)
except ValueError as e:
return f'Invalid collection id, collection id must be a hexadecimal number: {e}', None
encoded_cid = encode_collection_id(cid)
# Generate the pack format and pack the key
doc_key: bytes = struct.pack(
("!" + str(len(encoded_cid)) + "s"
+ str(len(prefix)) + "s"
+ str(len(key)) + "s").encode(),
encoded_cid,
prefix.encode(),
key.encode())
else:
doc_key = prefix.encode() + key.encode()
datatype = 0x00
if json_body and cmd != couchbaseConstants.CMD_GET:
datatype = 0x01
msg: couchbaseConstants.BATCH_MSG = (cmd, vbucket_id, doc_key, flg, exp, cas, b'', value_bytes, 0, datatype,
0, 0)
batch.append(msg, len(value_bytes))
if exit_after_creates and self.cur_items >= max_items:
self.done = True
return 0, batch
if batch.size() <= 0:
return 0, None
return 0, batch
class CSVSource(pump.Source):
"""Reads csv file, where first line is field names and one field
should be 'id'."""
def __init__(self, opts, spec, source_bucket, source_node, source_map,
sink_map, ctl, cur):
super(CSVSource, self).__init__(opts, spec, source_bucket, source_node,
source_map, sink_map, ctl, cur)
self.done = False
self.r = None # An iterator of csv.reader()
@staticmethod
def can_handle(opts, spec):
return spec.endswith(".csv") and os.path.isfile(spec)
@staticmethod
def check(opts, spec):
return 0, {
'spec':
spec,
'buckets': [{
'name': os.path.basename(spec),
'nodes': [{
'hostname': 'N/A'
}]
}]
}
@staticmethod
def provide_design(opts, source_spec, source_bucket, source_map):
return 0, None
def provide_batch(self):
if self.done:
return 0, None
if not self.r:
try:
self.r = csv.reader(open(self.spec, 'rU'))
self.fields = self.r.next()
if not 'id' in self.fields:
return ("error: no 'id' field in 1st line of csv: %s" %
(self.spec)), None
except StopIteration:
return ("error: could not read 1st line of csv: %s" %
(self.spec)), None
except IOError, e:
return ("error: could not open csv: %s; exception: %s" %
(self.spec, e)), None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
cmd = couchbaseConstants.CMD_TAP_MUTATION
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (self.r and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
try:
vals = self.r.next()
doc = {}
for i, field in enumerate(self.fields):
if i >= len(vals):
continue
if field == 'id':
doc[field] = vals[i]
else:
doc[field] = number_try_parse(vals[i])
if doc['id']:
doc_json = json.dumps(doc)
msg = (cmd, vbucket_id, doc['id'], flg, exp, cas, '',
doc_json, 0, 0, 0, 0)
batch.append(msg, len(doc))
except StopIteration:
self.done = True
self.r = None
except Exception, e:
logging.error("error: fails to read from csv file, %s", e)
continue
class BSONSource(pump.Source):
"""Reads bson file."""
def __init__(self, opts, spec, source_bucket, source_node,
source_map, sink_map, ctl, cur):
super(BSONSource, self).__init__(opts, spec, source_bucket, source_node,
source_map, sink_map, ctl, cur)
self.done = False
self.f = None
@staticmethod
def can_handle(opts, spec):
return spec.startswith(BSON_SCHEME) and \
os.path.isfile(spec.replace(BSON_SCHEME, ""))
@staticmethod
def check(opts, spec):
return 0, {'spec': spec,
'buckets': [{'name': os.path.basename(spec),
'nodes': [{'hostname': 'N/A'}]}]}
@staticmethod
def provide_design(opts, source_spec, source_bucket, source_map):
return 0, None
def provide_batch(self):
if self.done:
return 0, None
if not self.f:
try:
self.f = open(self.spec.replace(BSON_SCHEME, ""))
except IOError, e:
return "error: could not open bson: %s; exception: %s" % \
(self.spec, e), None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
cmd = couchbaseConstants.CMD_TAP_MUTATION
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (self.f and
batch.size() < batch_max_size and
batch.bytes < batch_max_bytes):
doc_size_buf = self.f.read(4)
if not doc_size_buf:
self.done = True
self.f.close()
self.f = None
break
doc_size, = struct.unpack("<i", doc_size_buf)
doc_buf = self.f.read(doc_size - 4)
if not doc_buf:
self.done = True
self.f.close()
self.f = None
break
doc = bson._elements_to_dict(doc_buf, dict, True)
key = doc['_id']
doc_json = json.dumps(doc)
msg = (cmd, vbucket_id, key, flg, exp, cas, '', doc_json, 0, 0, 0)
batch.append(msg, len(doc))
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_batch(self):
if self.done:
return 0, None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
s = "SELECT cmd, vbucket_id, key, flg, exp, cas, meta, val FROM cbb_msg"
if self.files is None: # None != [], as self.files will shrink to [].
g = glob.glob(BFD.db_dir(self.spec,
self.bucket_name(),
self.node_name()) + "/data-*.cbb")
self.files = sorted(g)
try:
while (not self.done and
batch.size() < batch_max_size and
batch.bytes < batch_max_bytes):
if self.cursor_db is None:
if not self.files:
self.done = True
return 0, batch
rv, db = connect_db(self.files[0], self.opts, CBB_VERSION)
if rv != 0:
return rv, None
self.files = self.files[1:]
cursor = db.cursor()
cursor.execute(s)
self.cursor_db = (cursor, db)
cursor, db = self.cursor_db
row = cursor.fetchone()
if row:
vbucket_id = row[1]
key = row[2]
val = row[7]
if self.skip(key, vbucket_id):
continue
msg = (row[0], row[1], row[2], row[3], row[4],
int(row[5]), # CAS as 64-bit integer not string.
row[6], row[7])
batch.append(msg, len(val))
else:
if self.cursor_db:
self.cursor_db[0].close()
self.cursor_db[1].close()
self.cursor_db = None
return 0, batch
except Exception, e:
self.done = True
if self.cursor_db:
self.cursor_db[0].close()
self.cursor_db[1].close()
self.cursor_db = None
return "error: exception reading backup file: " + str(e), None
def provide_batch_actual(self, tap_conn):
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
try:
while (not self.tap_done and
batch.size() < batch_max_size and
batch.bytes < batch_max_bytes):
# TODO: (1) TAPDumpSource - provide_batch timeout on inactivity.
rv, cmd, vbucket_id, key, flg, exp, cas, meta, val, \
opaque, need_ack = self.read_tap_conn(tap_conn)
if rv != 0:
self.tap_done = True
return rv, batch
if (cmd == memcacheConstants.CMD_TAP_MUTATION or
cmd == memcacheConstants.CMD_TAP_DELETE):
if not self.skip(key, vbucket_id):
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val)
batch.append(msg, len(val))
self.num_msg += 1
elif cmd == memcacheConstants.CMD_TAP_OPAQUE:
pass
elif cmd == memcacheConstants.CMD_NOOP:
# 1.8.x servers might not end the TAP dump on an empty bucket,
# so we treat 2 NOOP's in a row as the end and proactively close.
# Only do this when there've been no msgs to avoid closing
# during a slow backfill.
if (self.cmd_last == memcacheConstants.CMD_NOOP and
self.num_msg == 0 and
batch.size() <= 0):
self.tap_done = True
return 0, batch
elif cmd == memcacheConstants.CMD_TAP_FLUSH:
logging.warn("stopping: saw CMD_TAP_FLUSH")
self.tap_done = True
break
else:
s = str(pump.CMD_STR.get(cmd, cmd))
logging.warn("warning: unexpected TAP message: " + s)
return "unexpected TAP message: " + s, batch
if need_ack:
self.ack_last = True
try:
tap_conn._sendMsg(cmd, '', '', opaque, vbucketId=0,
fmt=memcacheConstants.RES_PKT_FMT,
magic=memcacheConstants.RES_MAGIC_BYTE)
except socket.error:
return ("error: socket.error on send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
except EOFError:
self.tap_done = True
return ("error: EOFError on socket send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
# Close the batch when there's an ACK handshake, so
# the server can concurrently send us the next batch.
# If we are slow, our slow ACK's will naturally slow
# down the server.
return 0, batch
self.ack_last = False
self.cmd_last = cmd
except EOFError:
if batch.size() <= 0 and self.ack_last:
# A closed conn after an ACK means clean end of TAP dump.
self.tap_done = True
if batch.size() <= 0:
return 0, None
return 0, batch
def provide_dcp_batch_actual(self):
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
delta_ack_size = batch_max_bytes * 10 / 4 #ack every 25% of buffer size
last_processed = 0
total_bytes_read = 0
vbid = 0
cmd = 0
start_seqno = 0
end_seqno = 0
vb_uuid = 0
hi_seqno = 0
ss_start_seqno = 0
ss_end_seqno = 0
try:
while (not self.dcp_done and batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if self.response.empty():
if len(self.stream_list) > 0:
logging.debug(
"no response while there %s active streams" %
len(self.stream_list))
time.sleep(.25)
else:
self.dcp_done = True
continue
unprocessed_size = total_bytes_read - last_processed
if unprocessed_size > delta_ack_size:
rv = self.ack_buffer_size(unprocessed_size)
if rv:
logging.error(rv)
else:
last_processed = total_bytes_read
cmd, errcode, opaque, cas, keylen, extlen, data, datalen, dtype, bytes_read = \
self.response.get()
total_bytes_read += bytes_read
rv = 0
metalen = flags = flg = exp = 0
key = val = ext = ''
need_ack = False
seqno = 0
if cmd == couchbaseConstants.CMD_DCP_REQUEST_STREAM:
if errcode == couchbaseConstants.ERR_SUCCESS:
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
start = 0
step = DCPStreamSource.HIGH_SEQNO_BYTE + DCPStreamSource.UUID_BYTE
while start + step <= datalen:
uuid, seqno = struct.unpack(
couchbaseConstants.DCP_VB_UUID_SEQNO_PKT_FMT, \
data[start:start + step])
if pair_index not in self.cur['failoverlog']:
self.cur['failoverlog'][pair_index] = {}
if opaque not in self.cur['failoverlog'][pair_index] or \
not self.cur['failoverlog'][pair_index][opaque]:
self.cur['failoverlog'][pair_index][opaque] = [
(uuid, seqno)
]
else:
self.cur['failoverlog'][pair_index][
opaque].append((uuid, seqno))
start = start + step
elif errcode == couchbaseConstants.ERR_KEY_ENOENT:
logging.warn(
"producer doesn't know about the vbucket uuid, rollback to 0"
)
vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_end_seqno = \
self.stream_list[opaque]
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_KEY_EEXISTS:
logging.warn(
"a stream exists on the connection for vbucket:%s"
% opaque)
elif errcode == couchbaseConstants.ERR_NOT_MY_VBUCKET:
logging.warn(
"Vbucket is not active anymore, skip it:%s" % vbid)
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ERANGE:
logging.warn("Start or end sequence numbers specified incorrectly,(%s, %s)" % \
(start_seqno, end_seqno))
del self.stream_list[opaque]
elif errcode == couchbaseConstants.ERR_ROLLBACK:
vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_stop_seqno = \
self.stream_list[opaque]
start_seqno, = struct.unpack(
couchbaseConstants.DCP_VB_SEQNO_PKT_FMT, data)
#find the most latest uuid, hi_seqno that fit start_seqno
if self.cur['failoverlog']:
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
if self.cur['failoverlog'][pair_index].get("vbid"):
for uuid, seqno in self.cur['failoverlog'][
pair_index][vbid]:
if start_seqno >= seqno:
vb_uuid = uuid
break
ss_start_seqno = start_seqno
ss_end_seqno = start_seqno
self.request_dcp_stream(vbid, flags, start_seqno,
end_seqno, vb_uuid,
ss_start_seqno, ss_end_seqno)
del self.stream_list[opaque]
self.stream_list[opaque] = \
(vbid, flags, start_seqno, end_seqno, vb_uuid, ss_start_seqno, ss_end_seqno)
else:
logging.error("unprocessed errcode:%s" % errcode)
del self.stream_list[opaque]
elif cmd == couchbaseConstants.CMD_DCP_MUTATION:
vbucket_id = errcode
seqno, rev_seqno, flg, exp, locktime, metalen, nru = \
struct.unpack(couchbaseConstants.DCP_MUTATION_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
val_len = datalen - keylen - metalen - extlen
meta_start = val_start + val_len
key = data[extlen:val_start]
val = data[val_start:meta_start]
conf_res = 0
if meta_start < datalen:
# handle extra conflict resolution fields
extra_meta = data[meta_start:]
extra_index = 0
version = extra_meta[extra_index]
extra_index += 1
while extra_index < metalen:
id, extlen = struct.unpack(
couchbaseConstants.DCP_EXTRA_META_PKG_FMT,
extra_meta[extra_index:extra_index + 3])
extra_index += 3
if id == couchbaseConstants.DCP_EXTRA_META_CONFLICT_RESOLUTION:
if extlen == 1:
conf_res, = struct.unpack(
">B",
extra_meta[extra_index:extra_index +
1])
elif extlen == 2:
conf_res, = struct.unpack(
">H",
extra_meta[extra_index:extra_index +
2])
elif extlen == 4:
conf_res, = struct.unpack(
">I",
extra_meta[extra_index:extra_index +
4])
elif extlen == 8:
conf_res, = struct.unpack(
">Q",
extra_meta[extra_index:extra_index +
8])
else:
logging.error(
"unsupported extra meta data format:%d"
% extlen)
conf_res = 0
extra_index += extlen
if not self.skip(key, vbucket_id):
msg = (cmd, vbucket_id, key, flg, exp, cas, rev_seqno, val, seqno, dtype, \
metalen, conf_res)
batch.append(msg, len(val))
self.num_msg += 1
elif cmd == couchbaseConstants.CMD_DCP_DELETE or \
cmd == couchbaseConstants.CMD_DCP_EXPIRATION:
vbucket_id = errcode
seqno, rev_seqno, metalen = \
struct.unpack(couchbaseConstants.DCP_DELETE_PKT_FMT, data[0:extlen])
key_start = extlen
val_start = key_start + keylen
key = data[extlen:val_start]
if not self.skip(key, vbucket_id):
msg = (cmd, vbucket_id, key, flg, exp, cas, rev_seqno, val, seqno, dtype, \
metalen, 0)
batch.append(msg, len(val))
self.num_msg += 1
if cmd == couchbaseConstants.CMD_DCP_DELETE:
batch.adjust_size += 1
elif cmd == couchbaseConstants.CMD_DCP_FLUSH:
logging.warn("stopping: saw CMD_DCP_FLUSH")
self.dcp_done = True
break
elif cmd == couchbaseConstants.CMD_DCP_END_STREAM:
del self.stream_list[opaque]
if not len(self.stream_list):
self.dcp_done = True
elif cmd == couchbaseConstants.CMD_DCP_SNAPSHOT_MARKER:
ss_start_seqno, ss_end_seqno, _ = \
struct.unpack(couchbaseConstants.DCP_SNAPSHOT_PKT_FMT, data[0:extlen])
pair_index = (self.source_bucket['name'],
self.source_node['hostname'])
if not self.cur['snapshot']:
self.cur['snapshot'] = {}
if pair_index not in self.cur['snapshot']:
self.cur['snapshot'][pair_index] = {}
self.cur['snapshot'][pair_index][opaque] = (ss_start_seqno,
ss_end_seqno)
elif cmd == couchbaseConstants.CMD_DCP_NOOP:
need_ack = True
elif cmd == couchbaseConstants.CMD_DCP_BUFFER_ACK:
if errcode != couchbaseConstants.ERR_SUCCESS:
logging.warning("buffer ack response errcode:%s" %
errcode)
continue
else:
logging.warn("warning: unexpected DCP message: %s" % cmd)
return "unexpected DCP message: %s" % cmd, batch
if need_ack:
self.ack_last = True
try:
self.dcp_conn._sendMsg(
cmd,
'',
'',
opaque,
vbucketId=0,
fmt=couchbaseConstants.RES_PKT_FMT,
magic=couchbaseConstants.RES_MAGIC_BYTE)
except socket.error:
return (
"error: socket.error on send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
except EOFError:
self.dcp_done = True
return (
"error: EOFError on socket send();"
" perhaps the source server: %s was rebalancing"
" or had connectivity/server problems" %
(self.source_node['hostname'])), batch
# Close the batch when there's an ACK handshake, so
# the server can concurrently send us the next batch.
# If we are slow, our slow ACK's will naturally slow
# down the server.
self.ack_buffer_size(total_bytes_read - last_processed)
return 0, batch
self.ack_last = False
self.cmd_last = cmd
except EOFError:
if batch.size() <= 0 and self.ack_last:
# A closed conn after an ACK means clean end of TAP dump.
self.dcp_done = True
if batch.size() <= 0:
return 0, None
self.ack_buffer_size(total_bytes_read - last_processed)
return 0, batch
def loader(self):
rv, d = data_dir(self.spec)
if rv != 0:
self.queue.put((rv, None))
return
source_vbucket_state = \
getattr(self.opts, 'source_vbucket_state', 'active')
source_nodes = self.source_bucket['nodes']
if len(source_nodes) != 1:
self.queue.put(("error: expected 1 node in source_bucket: %s" %
(self.source_bucket['name']), None))
return
vbucket_states = source_nodes[0].get('vbucket_states', None)
if not vbucket_states:
self.queue.put(
("error: missing vbucket_states in source_bucket: %s" %
(self.source_bucket['name']), None))
return
vbuckets = vbucket_states.get(source_vbucket_state, None)
if vbuckets is None: # Empty dict is valid.
self.queue.put(("error: missing vbuckets in source_bucket: %s" %
(self.source_bucket['name']), None))
return
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
store = None
vbucket_id = None
# Level of indirection since we can't use python 3 nonlocal statement.
abatch = [pump.Batch(self)]
def change_callback(doc_info):
if doc_info:
key = doc_info.id
if self.skip(key, vbucket_id):
return
if doc_info.deleted:
cmd = memcacheConstants.CMD_TAP_DELETE
val = ''
else:
cmd = memcacheConstants.CMD_TAP_MUTATION
val = doc_info.getContents(
options=couchstore.CouchStore.DECOMPRESS)
cas, exp, flg = struct.unpack(SFD_REV_META, doc_info.revMeta)
meta = struct.pack(SFD_REV_SEQ, doc_info.revSequence)
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val)
abatch[0].append(msg, len(val))
if (abatch[0].size() >= batch_max_size
or abatch[0].bytes >= batch_max_bytes):
self.queue.put((0, abatch[0]))
abatch[0] = pump.Batch(self)
for f in latest_couch_files(d + '/' + self.source_bucket['name']):
vbucket_id = int(re.match(SFD_RE, os.path.basename(f)).group(1))
if not vbucket_id in vbuckets:
continue
try:
store = couchstore.CouchStore(f, 'r')
except Exception, e:
self.queue.put(("error: could not open couchstore file: %s"
"; exception: %s" % (f, e), None))
return
store.forEachChange(0, change_callback)
store.close()
def loader(self):
rv, d = data_dir(self.spec)
if rv != 0:
self.queue.put((rv, None))
return
source_vbucket_state = \
getattr(self.opts, 'source_vbucket_state', 'active')
source_nodes = self.source_bucket['nodes']
if len(source_nodes) != 1:
self.queue.put(("error: expected 1 node in source_bucket: %s" %
(self.source_bucket['name']), None))
return
vbucket_states = source_nodes[0].get('vbucket_states', None)
if not vbucket_states:
self.queue.put(
("error: missing vbucket_states in source_bucket: %s" %
(self.source_bucket['name']), None))
return
vbuckets = vbucket_states.get(source_vbucket_state, None)
if vbuckets is None: # Empty dict is valid.
self.queue.put(("error: missing vbuckets in source_bucket: %s" %
(self.source_bucket['name']), None))
return
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
store = None
vbucket_id = None
# Level of indirection since we can't use python 3 nonlocal statement.
abatch = [pump.Batch(self)]
def change_callback(doc_info):
if doc_info:
key = doc_info.id
if self.skip(key, vbucket_id):
return
if doc_info.deleted:
cmd = couchbaseConstants.CMD_TAP_DELETE
val = ''
else:
cmd = couchbaseConstants.CMD_TAP_MUTATION
val = doc_info.getContents(
options=couchstore.CouchStore.DECOMPRESS)
try:
cas, exp, flg, flex_meta, dtype = struct.unpack(
SFD_REV_META, doc_info.revMeta)
meta = doc_info.revSequence
seqno = doc_info.sequence
nmeta = 0
msg = (cmd, vbucket_id, key, flg, exp, cas, meta, val,
seqno, dtype, nmeta, 0)
abatch[0].append(msg, len(val))
except Exception, e:
self.queue.put((
"error: could not read couchstore file due to unsupported file format version;"
" exception: %s" % e, None))
return
if (abatch[0].size() >= batch_max_size
or abatch[0].bytes >= batch_max_bytes):
self.queue.put((0, abatch[0]))
abatch[0] = pump.Batch(self)
def provide_batch(self):
if self.done:
return 0, None
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
s = ["SELECT cmd, vbucket_id, key, flg, exp, cas, meta, val FROM cbb_msg",
"SELECT cmd, vbucket_id, key, flg, exp, cas, meta, val, seqno, dtype, meta_size FROM cbb_msg",
"SELECT cmd, vbucket_id, key, flg, exp, cas, meta, val, seqno, dtype, meta_size, conf_res FROM cbb_msg"]
if self.files is None: # None != [], as self.files will shrink to [].
g = glob.glob(BFD.db_dir(self.spec, self.bucket_name(), self.node_name()) + "/data-*.cbb")
if not g:
#check 3.0 file structure
rv, file_list = BFDSource.list_files(self.opts,
self.spec,
self.bucket_name(),
self.node_name(),
"data-*.cbb")
if rv != 0:
return rv, None
from_date = getattr(self.opts, "from_date", None)
if from_date:
from_date = datetime.datetime.strptime(from_date, "%Y-%m-%d")
to_date = getattr(self.opts, "to_date", None)
if to_date:
to_date = datetime.datetime.strptime(to_date, "%Y-%m-%d")
g = []
for f in file_list:
mtime = datetime.datetime.fromtimestamp(os.path.getmtime(f))
if (not from_date or mtime >= from_date) and (not to_date or mtime <= to_date):
g.append(f)
self.files = sorted(g)
try:
ver = 0
while (not self.done and
batch.size() < batch_max_size and
batch.bytes < batch_max_bytes):
if self.cursor_db is None:
if not self.files:
self.done = True
return 0, batch
rv, db, ver = connect_db(self.files[0], self.opts, CBB_VERSION)
if rv != 0:
return rv, None
self.files = self.files[1:]
cursor = db.cursor()
cursor.execute(s[ver])
self.cursor_db = (cursor, db)
cursor, db = self.cursor_db
row = cursor.fetchone()
if row:
vbucket_id = row[1]
key = row[2]
val = row[7]
if self.skip(key, vbucket_id):
continue
msg = (row[0], row[1], row[2], row[3], row[4],
int(row[5]), # CAS as 64-bit integer not string.
row[6], # revid as 64-bit integer too
row[7])
if ver == 2:
msg = msg + (row[8], row[9], row[10], row[11])
elif ver == 1:
msg = msg + (row[8], row[9], row[10], 0)
else:
msg = msg + (0, 0, 0, 0)
batch.append(msg, len(val))
else:
if self.cursor_db:
self.cursor_db[0].close()
self.cursor_db[1].close()
self.cursor_db = None
return 0, batch
except Exception, e:
self.done = True
if self.cursor_db:
self.cursor_db[0].close()
self.cursor_db[1].close()
self.cursor_db = None
return "error: exception reading backup file: " + str(e), None
def provide_batch(self):
"""Provides a batch of messages, with GET/SET ratios and keys
controlled by a mcsoda-inspired approach, but simpler."""
if self.done:
return 0, None
cfg = self.source_map['cfg']
prefix = cfg['prefix']
max_items = cfg['max-items']
ratio_sets = cfg['ratio-sets']
exit_after_creates = cfg['exit-after-creates']
low_compression = cfg['low-compression']
xattrs = cfg['xattr']
itr = None
collections = self.opts.collection
if collections:
itr = iter(collections)
json = cfg['json']
if not self.body:
if low_compression:
# Generate a document which snappy will struggle to compress.
# Useful if your creating data-sets which utilise disk.
random.seed(
0
) # Seed to a fixed value so we always have the same document pattern.
document = ''.join(
random.choice(string.ascii_uppercase)
for _ in range(cfg['min-value-size']))
else:
# else a string of 0 is fine, but will compress very well.
document = "0" * cfg['min-value-size']
if json:
self.body = '{"name": "%s%s", "age": %s, "index": %s,' + \
' "body": "%s"}' % document
else:
self.body = document
batch = pump.Batch(self)
batch_max_size = self.opts.extra['batch_max_size']
batch_max_bytes = self.opts.extra['batch_max_bytes']
vbucket_id = 0x0000ffff
cas, exp, flg = 0, 0, 0
while (batch.size() < batch_max_size
and batch.bytes < batch_max_bytes):
if ratio_sets >= float(self.cur_sets) / float(self.cur_ops or 1):
self.cur_sets = self.cur_sets + 1
if xattrs:
cmd = couchbaseConstants.CMD_SUBDOC_MULTIPATH_MUTATION
else:
cmd = couchbaseConstants.CMD_DCP_MUTATION
if self.cur_items < max_items:
key = str(self.cur_items)
self.cur_items = self.cur_items + 1
else:
key = str(self.cur_sets % self.cur_items)
else:
self.cur_gets = self.cur_gets + 1
if xattrs:
cmd = couchbaseConstants.CMD_SUBDOC_MULTIPATH_LOOKUP
else:
cmd = couchbaseConstants.CMD_GET
key = str(self.cur_gets % self.cur_items)
self.cur_ops = self.cur_ops + 1
if json:
value = self.body % (prefix, key, int(key) % 101, key)
else:
value = self.body
if xattrs:
value = {
"obj": value,
"xattr_f": "field1",
"xattr_v": "\"value1\""
}
# generate a collection key
if itr:
try:
cid = int(next(itr), 16)
except StopIteration:
itr = iter(collections)
cid = int(next(itr), 16)
encodedCid = encodeCollectionId(cid)
# Generate the pack format and pack the key
docKey = struct.pack(
"!" + str(len(encodedCid)) + "s" + str(len(prefix)) + "s" +
str(len(key)) + "s", encodedCid, prefix, key)
else:
docKey = prefix + key
msg = (cmd, vbucket_id, docKey, flg, exp, cas, '', value, 0, 0, 0,
0)
batch.append(msg, len(value))
if exit_after_creates and self.cur_items >= max_items:
self.done = True
return 0, batch
if batch.size() <= 0:
return 0, None
return 0, batch
