I am a new guy to couchbase.I try to use couchbase and couchbase's python
client in my python-base web APIs.But I find some errors when I use ab(a
tool to test the web api performence) to test the api with some concurrecny
http requests. The errors of the python clinet throwed bellow here.I want
know why these errors occoured,and how to solve this problem.
The errors
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uwsgi: src/server.c:666: lcb_server_purge_implicit_responses: Assertion
`c->cmd_log.nbytes' failed.
python-couchbase: self->nremaining == 0 at src/oputil.c:77. AbortTraceback
(most recent call last):
File "api.py", line 111, in falcon.api.API.__call__ (falcon/api.c:1389)
# startkey=start, endkey=end,
File "api.py", line 96, in falcon.api.API.__call__ (falcon/api.c:1210)
# end = '/' + adid + '/' + end
File "api.py", line 174, in on_post
query_results = couchbase_category.get_multi(keys, quiet=True)
File "/usr/local/lib/python2.7/dist-packages/couchbase/connection.py", line
1053, in get_multi
return _Base.get_multi(self, keys, ttl=ttl, quiet=quiet, replica=replica,
no_format=no_format)
couchbase.exceptions._TimeoutError_0x17 (generated, catch TimeoutError):
<Key=u'com.htc.fm', RC=0x17[Client-Side timeout exceeded for operation. Inspect
network conditions or increase the timeout], Operational Error, Results=34, C
Source=(src/multiresult.c,286)>
------------------------------------------------------------------------------------------------------------------------------------
My python code
couchbase_category = Couchbase.connect(
bucket='Category', host='127.0.0.1', timeout=5)class Category:
def on_post(self, req, resp):
t1 = datetime.datetime.now()
content = {}
# try:
params = json.load(req.stream, 'utf-8')
keys = []
for app in params['apps']:
keys.append(app['bundle_id'])
unknown_apps = []
result = {}
result['known_bundle_ids'] = []
result['unknown_bundle_ids'] = []
result['apps'] = []
result['categorys'] = []
query_results = couchbase_category.get_multi(keys, quiet=True)
for key in query_results:
if query_results[key].success:
result['apps'].append(query_results[key].value)
result['known_bundle_ids'].append(key)
result['categorys'].append(
query_results[key].value['categoryName'])
else:
result['unknown_bundle_ids'].append(key)
result['categorys'] = list(set(result['categorys']))
for item in params['apps']:
if item['bundle_id'] in result['unknown_bundle_ids']:
unknown_apps.append(item)
timestamp = time.time()
pipe = r.pipeline()
for app in unknown_apps:
pipe.zadd('uncached_apps', timestamp, app)
pipe.execute()
content['is_ok'] = True
content['result'] = result
t2 = datetime.datetime.now()
content['total_time'] = (t2 - t1).total_seconds()
# except Exception, err:
# content['is_ok'] = False
# finally:
resp.status = falcon.HTTP_201
resp.body = json.dumps(content)
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