Apache WebServer Agent doesn't connect to collector
Hi,
I have these Error in the dtwsagent.log trying to start the dtwebserver process.
In the collector Log, there is nothing particular (no connect/disconnect)
The Agent is installed externally (on an provider) and the Collector is installed on site (we had no choice, no way no install the collector close to the agent)
Environment : Java version 6 64b - Apache 2- Tomcat 6 - OS Debian 64b - Dt Agent 6.1 + Fixpack applied
The reverse proxy seems correctly configured and the 9998 port has been open
Thanks a lot for your help
2015-02-24 16:28:58.460327 [11003/b12528e8] info [native] ------------------------------------------------------------------------------------------------------
2015-02-24 16:28:58.460344 [11003/b12528e8] info [native] dynaTrace Agent for Web server Copyright (C) 2004-2014 Compuware Corporation, http://www.compuware.com
2015-02-24 16:28:58.460352 [11003/b12528e8] info [native] ------------------------------------------------------------------------------------------------------
2015-02-24 16:28:58.460364 [11003/b12528e8] info [native] Version ..................... 6.1.0.7880, build date Nov 26 2014 14:41:59, svn rev. 449524
2015-02-24 16:28:58.460392 [11003/b12528e8] info [native] Command line is ./dynatrace-6.1.0/agent/lib64/dtwsagent
2015-02-24 16:28:58.460401 [11003/b12528e8] info [native] Build platform .............. Linux x86 64-bit
2015-02-24 16:28:58.460410 [11003/b12528e8] info [native] Platform .................... Linux 2.6.32-5-amd64 x86_64
2015-02-24 16:28:58.460417 [11003/b12528e8] info [native] Bootstrap version ........... 6.1.0.7880
2015-02-24 16:28:58.460424 [11003/b12528e8] info [native] Log level console ........... none
2015-02-24 16:28:58.460430 [11003/b12528e8] info [native] Log level file .............. info
2015-02-24 16:28:58.460437 [11003/b12528e8] info [native] Log file .................... /data/Poc_Dynatrace/dynatrace-6.1.0/log/dt_dtwsagent_11003.0.log
2015-02-24 16:28:58.460446 [11003/b12528e8] info [native] Agent host .................. SVSGHLINSE001
2015-02-24 16:28:58.460462 [11003/b12528e8] info [native] Agent library ............... /data/Poc_Dynatrace/dynatrace-6.1.0/agent/lib64/libdtwsagent.so
2015-02-24 16:28:58.460470 [11003/b12528e8] info [native] Agent name .................. Tomcat_CRM
2015-02-24 16:28:58.460480 [11003/b12528e8] info [native] Server/Collector ............ dynatrace.sergic.com:9998
2015-02-24 16:29:18.502093 [11003/b12528e8] info [native] Could not retrieve LoadBalancing configuration from dynatrace.sergic.com:9998 (70014): End of file found
2015-02-24 16:29:18.502156 [11003/b12528e8] info [native] Trying to connect to Server/Collector for up to 19 seconds
2015-02-24 16:29:39.044648 [11003/b12528e8] severe [native] Exception while connecting to collector, info:<util::SocketConnection::receiveExact(), 70014, End of file found>
2015-02-24 16:29:39.044715 [11003/b12528e8] warning [native] Unable to register with Server/Collector dynatrace.sergic.com:9998, CONTINUING WITHOUT INSTRUMENTATION.
2015-02-24 16:29:59.113756 [11003/b12528e8] severe [native] Exception during registerSensorMetaData: sendExact() ... not connected, 88, Socket not available or already closed
2015-02-24 16:29:59.114129 [11003/b12528e8] severe [native] ... last message repeated 11 times ...
2015-02-24 16:29:59.114118 [11003/b12528e8] info [native] Successfully started agent
2015-02-24 16:29:59.114613 [11003/a7ff88e8] info [native] New subAgent registered successfully: ca975187
2015-02-24 16:29:59.114690 [11003/a7ff88e8] info [native] sub agent registered with id (sub/slave) ca975187/7828e4338
Rafael
Have you restarted your Server and Collectors after you applied the FixPack?
Hello Andreas, thanks for your answer
Yes le server and Collector have been restarted, an another system profil is working fine with several connected agents
The Telnet is also ok between the WebServer agent and the collector on 9998
Rights are correctly positionned on the process, but I still have this connexion exception
Does this happen for every web server agent on that collector or are there other agents on that same collector where there is no problem? I want to figure out if this is a problem with the agent or with the Collector
The issue is only for one web server agent (the other web server agent is correctly connected) : the issue is certaintly related to this agent and not the collector
Because this agent is no close to the collector, don't you think it could be due to the distance ? maybe because of the latency ?
Hey Rafael / Andreas,
Were you able to determined what caused this error? I am facing the same issue, where one of my Java agent got disconnected and I see the below in the log.
2015-04-09 18:27:21 [ccf808de] info [native] Instrumentation channel connected successfully
2015-04-09 18:27:21 [ccf808de] info [native] Connected to Server/Collector xxxxxxxxx
2015-04-09 18:27:22 [acb588de] info [native] Control channel connected successfully
2015-04-09 18:27:22 [acb588de] info [native] Agent ID .................... bb72541d
2015-04-09 18:27:22 [acb588de] info [native] Process ID .................. 17197
2015-04-09 18:27:22 [acb588de] info [native] Recovery .................... enabled
2015-04-09 18:27:22 [acb588de] info [native] Hot Sensor Placement ........ available
2015-04-09 18:27:25 [7f48a8de] info [native] Eventsender channel connected successfully
2015-04-09 18:27:25 [7f48a8de] info [native] Event channel connected successfully
2015-04-09 18:27:25 [ad5678de] info [native] Sampling Cache (911 methods) cleared ...
2015-04-09 18:36:41 [ad5678de] info [native] Sampling Cache (0 methods) cleared ...
2015-04-09 18:37:02 [acb588de] info [native] License = license ok; no uem volume available;
2015-04-09 18:48:26 [ad5678de] info [native] ... last message repeated 2 times ...
2015-04-09 18:48:26 [ad5678de] info [native] Sampling Cache (0 methods) cleared ...
2015-04-09 21:13:01 [acb588de] info [native] Reconnecting agent with next collector
2015-04-09 21:13:01 [ccf808de] info [native] Instrumentation channel connected successfully
2015-04-09 21:13:01 [ccf808de] info [native] Connected to Server/Collector xxxxxx
2015-04-09 21:13:05 [7f48a8de] warning [native] Exception occurred while sending events: sendExact() ... not connected, 88, Socket not available or already closed
Thanks,
Sandeep.
Hello Sandeep,
My issue was related to a network problem.. According to the provider the proxy was not well configured
Your problem seems a little bit différent, your agent is disconnected (mine was never connected)
- Is your collector installed far from the agent ?
- Are you systematically disconnected or it happens randomly ?
- Did you get valid information from this agent the time it is connected ?
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