Hi
Such errors would fall under the domain of the underlying libcouchbase.
What version of libcouchbase are you using? Version 2.3.1 and earlier
has a bug which may manifest itself in the symptom you are describing,
so please try 2.3.2 (http://www.couchbase.com/communities/c-client-library)
I would also suggest you try to run your tests with the new 2.4.0-beta
version to see how that goes. Get it here
http://packages.couchbase.com/clients/c/index.html
On 07/17/2014 04:23 AM, Chen Sun wrote:
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
---------------------------------------------------------------------------------------------------------------------------
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 appin 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 keyin 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 itemin params['apps']:
if item['bundle_id'] in result['unknown_bundle_ids']:
unknown_apps.append(item)
timestamp= time.time()
pipe= r.pipeline()
for appin 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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