class Indexer:
def __init__(self, es_host, batch_mode=True, batch_size=100):
self.client = ES(es_host)
self.batch_mode = batch_mode
self.client.bulk_size = int(batch_size)
def bulk_index(self, index, type, shapefile, sleep_time=0.1):
print 'Indexing [%s] docs into [%s] from %s' % (type, index, shapefile)
index_count = 0
id_re = re.compile('^.*?"id"\s*:\s*"([^"]+)"')
parens_re = re.compile('\(.*?\)')
for line in input(shapefile):
id = id_re.match(line).group(1)
# cleanup any lines that contain parentheticals
line = parens_re.sub('', line).strip()
# sweet dec/encodings bro
line = line.decode('latin-1').encode('utf-8')
id = id.decode('latin-1').encode('utf-8')
try:
self.client.index(line, index, type, id, bulk=self.batch_mode)
except UnicodeDecodeError as e:
print "Error processing line with id %s: %s" % (id, e.message)
except NoServerAvailable as e:
print "The server failed to respond while indexing %s: [%s]. Sleeping %d seconds and retrying..." % (id, e.message, sleep_time)
sleep(5)
try:
print "Retrying indexing of %s" % id
self.client.index(line, index, type, id, bulk=self.batch_mode)
except NoServerAvailable as e:
print "Failed to reconnect again. Skipping indexing %s" % id
except Exception as e:
print "This happened: %s" % e
index_count += 1
if index_count % int(self.client.bulk_size) == 0:
print 'Indexing batch of %d, starting from %s' % (self.client.bulk_size, id)
sleep(sleep_time)
# index remaining bulk entries
self.client.force_bulk()
dataset = shelve.open("samples.shelve")
mapping = { u'description': {'boost': 1.0,
'index': 'analyzed',
'store': 'yes',
'type': u'string',
"term_vector" : "with_positions_offsets"
},
u'name': {'boost': 1.0,
'index': 'analyzed',
'store': 'yes',
'type': u'string',
"term_vector" : "with_positions_offsets"
},
u'age': {'store': 'yes',
'type': u'integer'},
}
conn.create_index("test-index")
conn.put_mapping("test-type", {'properties':mapping}, ["test-index"])
start = datetime.now()
for k, userdata in dataset.items():
# conn.index(userdata, "test-index", "test-type", k)
conn.index(userdata, "test-index", "test-type", k, bulk=True)
conn.force_bulk()
end = datetime.now()
print "time:", end-start
dataset.close()
es = ES()
index_name = "my_index"
type_name = "my_type"
from utils_pyes import create_and_add_mapping
create_and_add_mapping(es, index_name, type_name)
es.index(doc={"name": "Joe Tester", "parsedtext": "Joe Testere nice guy", "uuid": "11111", "position": 1},
index=index_name, doc_type=type_name, id=1)
es.index(doc={"name": "data1", "value": "value1"}, index=index_name, doc_type=type_name + "2", id=1, parent=1)
es.index(doc={"name": "Bill Baloney", "parsedtext": "Bill Testere nice guy", "uuid": "22222", "position": 2},
index=index_name, doc_type=type_name, id=2, bulk=True)
es.index(doc={"name": "data2", "value": "value2"}, index=index_name, doc_type=type_name + "2", id=2, parent=2,
bulk=True)
es.index(doc={"name": "Bill Clinton", "parsedtext": """Bill is not
nice guy""", "uuid": "33333", "position": 3}, index=index_name, doc_type=type_name, id=3, bulk=True)
es.force_bulk()
es.update(index=index_name, doc_type=type_name, id=2, script='ctx._source.position += 1')
es.update(index=index_name, doc_type=type_name, id=2, script='ctx._source.position += 1', bulk=True)
es.delete(index=index_name, doc_type=type_name, id=1, bulk=True)
es.delete(index=index_name, doc_type=type_name, id=3)
es.force_bulk()
es.indices.refresh(index_name)
es.indices.delete_index(index_name)
class ProcessSpiderData(Task):
def run(self, spider_name):
cities = []
backup_source = []
backup_created_date = None
self.elastic = ES(settings.SEARCH_HOSTS, timeout=22.0, bulk_size=1500)
java = JavaInterface()
self.extractor = java.ArticleSentencesExtractor.INSTANCE
self.logger = ProcessSpiderData.get_logger()
spider = Data.objects.get(name=spider_name)
source = spider.source
if spider and len(source):
backup_created_date = spider.created_date
index_new = '%s_%d' % (spider.name, int(time.time()))
# create new index (not connected to alias)
self.elastic.create_index(index_new)
self.elastic.put_mapping('job', {'job':{'properties':mapping}}, index_new)
for item in source:
item = self._process_content(item)
item = self._get_location(item)
if item.has_key('city'):
cities.append(item['city'])
self._create_index(index_new, item)
backup_source.append(item)
# save new index (in bulk)
self.elastic.force_bulk()
# create alias
indices_old = self.elastic.get_alias(spider.name)
self.elastic.set_alias(spider.name, [index_new])
# delete all indices
for index in indices_old:
self.elastic.delete_index_if_exists(index)
# optimize
self.elastic.optimize(index_new, refresh=True)
# save backup (currently processed data)
if len(backup_source) and backup_created_date:
self._process_cities(set(cities), spider_name)
cache.clear()
obj = DataBackup.objects.get_or_create(
name=spider_name,
created_date=backup_created_date
)
obj[0].source = binascii.hexlify(bz2.compress(
JSONEncoder().encode(backup_source)
))
obj[0].save()
# force java & ES garbage collection
self.elastic.connection.close()
del self.extractor
del java
return True
def _process_content(self, item):
if len(item['content']):
item['content'] = self.extractor.getText(jpype.JString(item['content']))
return item
def _get_location(self, item):
if not item.has_key('city'):
return item
try:
geo = geocoders.GeoNames()
places = geo.geocode(item['city'].encode('utf-8'), exactly_one=False)
if places:
place, (lat, lon) = places[0] if isinstance(places, list) else places
if place: item['pin'] = {
'location': { 'lat': lat, 'lon': lon }
}
except: pass
return item
def _create_index(self, index, item):
id = item['id']
del item['id']
try:
self.elastic.get(index, 'job', id)
except ElasticSearchException:
self.elastic.index(
dumps(item, cls=DjangoJSONEncoder),
index, 'job', id, bulk=True
)
def _process_cities(self, cities, spider_name):
cities_current = City.objects.filter(indices__contains='"%s"' % spider_name)
# save lists of saved cities
cities_old_single = [ city.name for city in cities_current if city.indices and spider_name in city.indices and len(city.indices) == 1 ]
cities_old_multi = [ city.name for city in cities_current if city.indices and spider_name in city.indices and len(city.indices) > 1 ]
for city in cities:
city = unicode(city.strip().lower())
city = normalize_spaces.sub(' ', city)
city = remove_braces.sub('', city)
city_clean = [remove_none_chars.sub('', word) for word in city.split(' ')]
city_clean = ' '.join(filter(None, city_clean))
city, created = City.objects.get_or_create(name = city_clean[:255])
if created:
city.indices = [spider_name]
else:
city.indices.append(spider_name)
city.indices = list(set(city.indices))
city.save()
if city.name in cities_old_single: cities_old_single.remove(city.name)
if city.name in cities_old_multi: cities_old_multi.remove(city.name)
# remove unlinked citie
City.objects.filter(name__in=cities_old_single).delete()
for item in City.objects.filter(name__in=cities_old_multi):
if spider_name in item.indices:
item.indices.remove(spider_name)
item.save()
dataset = shelve.open("samples.shelve")
mapping = { u'description': {'boost': 1.0,
'index': 'analyzed',
'store': 'yes',
'type': u'string',
"term_vector" : "with_positions_offsets"
},
u'name': {'boost': 1.0,
'index': 'analyzed',
'store': 'yes',
'type': u'string',
"term_vector" : "with_positions_offsets"
},
u'age': {'store': 'yes',
'type': u'integer'},
}
conn.create_index("test-index")
conn.put_mapping("test-type", {'properties':mapping}, ["test-index"])
start = datetime.now()
for k, userdata in dataset.items():
# conn.index(userdata, "test-index", "test-type", k)
conn.index(userdata, "test-index", "test-type", k, bulk=True)
conn.force_bulk()
end = datetime.now()
print "time:", end - start
dataset.close()
id=2,
parent=2,
bulk=True)
es.index(doc={
"name": "Bill Clinton",
"parsedtext": """Bill is not
nice guy""",
"uuid": "33333",
"position": 3
},
index=index_name,
doc_type=type_name,
id=3,
bulk=True)
es.force_bulk()
es.update(index=index_name,
doc_type=type_name,
id=2,
script='ctx._source.position += 1')
es.update(index=index_name,
doc_type=type_name,
id=2,
script='ctx._source.position += 1',
bulk=True)
es.delete(index=index_name, doc_type=type_name, id=1, bulk=True)
es.delete(index=index_name, doc_type=type_name, id=3)
es.force_bulk()
