Created question in FIWARE Q/A platform on 14-12-2015 at 18:12
Please, ANSWER this question AT https://ask.fiware.org/question/303/persistence-error-in-cygnus/

Question:
Persistence error in Cygnus

Description:
Hello,

We are experiencing an error in cygnus when trying to persist data to cosmos. We tried to create directories directly with an http request ourselves and that worked fine. I am not sure what kind of information you might need to help, but this is the error message we get in the logs:

14 Dec 2015 17:11:41,405 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (com.telefonica.iot.cygnus.backends.http.HttpBackend.doRequest:195) - Http request: PUT http://cosmos.lab.fiware.org:14000/we...parkingsection?op=mkdirs&user.name=developer HTTP/1.1
14 Dec 2015 17:11:41,405 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.PoolingClientConnectionManager.requestConnection:182) - Connection request: [route: {}->http://cosmos.lab.fiware.org:14000][total kept alive: 0; route allocated: 0 of 100; total allocated: 0 of 500]
14 Dec 2015 17:11:41,406 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.PoolingClientConnectionManager.leaseConnection:214) - Connection leased: [id: 7][route: {}->http://cosmos.lab.fiware.org:14000][total kept alive: 0; route allocated: 1 of 100; total allocated: 1 of 500]
14 Dec 2015 17:11:41,406 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection:175) - Connecting to cosmos.lab.fiware.org:14000
14 Dec 2015 17:11:41,439 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.client.protocol.RequestAddCookies.process:122) - CookieSpec selected: best-match
14 Dec 2015 17:11:41,440 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.client.protocol.RequestAuthCache.process:75) - Auth cache not set in the context
14 Dec 2015 17:11:41,440 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.client.protocol.RequestTargetAuthentication.process:78) - Target auth state: UNCHALLENGED
14 Dec 2015 17:11:41,440 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.client.protocol.RequestProxyAuthentication.process:87) - Proxy auth state: UNCHALLENGED
14 Dec 2015 17:11:41,440 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:680) - Attempt 1 to execute request
14 Dec 2015 17:11:41,440 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:268) - Sending request: PUT /webhdfs/v1/user/developer/parking/occupancy/206parkingsection?op=mkdirs&user.name=developer HTTP/1.1
14 Dec 2015 17:11:41,441 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "PUT /webhdfs/v1/user/developer/parking/occupancy/206parkingsection?op=mkdirs&user.name=developer HTTP/1.1[\r][\n]"
14 Dec 2015 17:11:41,441 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "X-Auth-Token: *********************** [\r][\n]"
14 Dec 2015 17:11:41,441 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "Content-Length: 0[\r][\n]"
14 Dec 2015 17:11:41,441 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "Host: cosmos.lab.fiware.org:14000[\r][\n]"
14 Dec 2015 17:11:41,442 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "Connection: Keep-Alive[\r][\n]"
14 Dec 2015 17:11:41,442 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.Wire.wire:72) - >> "User-Agent: Apache-HttpClient/4.3.1 (java 1.5)[\r][\n]"
14 Dec 2015 17:11:41,442 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor ... (more)