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Could not resolve FQDN for ip server - Dynatrace service Collector

jemartineza
Participant

Hi.

I have a problem, the collector was installed on a server.

At the moment of starting the collector service, it indicates an error "Could not resolve FQDN for IP '172.20.97.105', using fallback 'RESPALDO' as hostname. Had following exception: com.dynatrace.diagnostics.sdk.net.FqdnResolutionException: Cannot resolve FQDN for IP address '172.20.97.105' 2019-03-27 12:43:40 INFO [Collector] Could not resolve FQDN for 172.20.97.10"

Do you know how I can solve it?

LOG dynatrace service COLLECTOR

2019-03-27 12:43:40 INFO [Collector] Dynatrace Collector Copyright (C) 2004-2017 Dynatrace
2019-03-27 12:43:40 INFO [Collector] -----------------------------------------------------------------------------
2019-03-27 12:43:40 INFO [Collector] Version 7.0.0.2469 built Tue May 30 04:59:01 PDT 2017
2019-03-27 12:43:40 INFO [Collector]
2019-03-27 12:43:40 INFO [Collector] Platform: Windows Server 2008 R2 6.1, amd64 64bit
2019-03-27 12:43:40 INFO [Collector] vm: Java HotSpot(TM) 64-Bit Server VM 1.8.0_121, Oracle Corporation, mixed mode
2019-03-27 12:43:40 INFO [Collector] Timezone: Pacific Standard Time
2019-03-27 12:43:40 INFO [Collector] Process: 2048MB heap
2019-03-27 12:43:40 INFO [Collector] Detected CPU: logical CPU cores: 4
2019-03-27 12:43:40 INFO [Collector] Available memory: 3,977 MB physical memory
2019-03-27 12:43:40 INFO [Collector] Additional platform information: <not available> (presumably, agent-based self-monitoring is not active)
2019-03-27 12:43:40 INFO [ShutdownPipe] found named pipe for shutdown - listening
2019-03-27 12:43:40 INFO [Collector] Dynatrace Collector started successfully
2019-03-27 12:43:40 INFO [WatchDog] WatchDog "Snoopy" has been started
2019-03-27 12:43:40 INFO [ClassCacheWritingThread] Class cache 'C:\Program Files\Dynatrace\Dynatrace Collector 7.0\collector\cache\classes\set1' size on disk: 48 bytes (0.00M)
2019-03-27 12:43:40 INFO [ClassCacheWritingThread] Inheritance map 'C:\Program Files\Dynatrace\Dynatrace Collector 7.0\collector\cache\classes\set1' files size on disk: 0 bytes (0.00M)
2019-03-27 12:43:40 WARNING [Collector] Could not resolve FQDN for IP '172.20.97.10', using fallback 'RESPALDO' as hostname. Had following exception: com.dynatrace.diagnostics.sdk.net.FqdnResolutionException: Cannot resolve FQDN for IP address '172.20.97.10'
2019-03-27 12:43:40 INFO [Collector] Could not resolve FQDN for 172.20.97.10
2019-03-27 12:43:40 INFO [Collector] Collector Configuration summary (DT-1514@RESPALDO)
2019-03-27 12:43:40 INFO [Collector] Config directory: C:\Program Files\Dynatrace\Dynatrace Collector 7.0\collector\conf
2019-03-27 12:43:40 INFO [Collector] Cache directory: C:\Program Files\Dynatrace\Dynatrace Collector 7.0\collector\cache
2019-03-27 12:43:40 INFO [Collector] Log directory: C:\Program Files\Dynatrace\Dynatrace Collector 7.0\collector\..\log\collector\Dynatrace Collector
2019-03-27 12:43:40 INFO [Collector] Hostname: RESPALDO (172.20.97.105)
2019-03-27 12:43:40 INFO [Collector] Agent listen port: 9998
2019-03-27 12:43:40 INFO [Collector] Server address: 10.54.30.70
2019-03-27 12:43:40 INFO [Collector] Server port: 6699
2019-03-27 12:43:40 INFO [Collector] Server Buffers: 400 x 0.5 MB
2019-03-27 12:43:40 INFO [UserPluginManager] Plugin manager started on RESPALDO.DOM1514.MEX:6699
2019-03-27 12:43:41 INFO [DynaTraceSSLEnvironment] "dtserver_legacy" is used as private key with SHA-1 fingerprint: 86:72:3F:D9:3C:34:FF:00:D0:CA:2A:07:1D:59:76:8C:E6:D7:0B:B4
2019-03-27 12:43:41 INFO [CollectorMemoryTracker] Emergency Limit: 1972895744 Bytes (=94%)
2019-03-27 12:43:41 INFO [CollectorMemoryTracker] Refuse Agent Connection Limit: 1815609344 Bytes (=87%)
2019-03-27 12:43:41 INFO [JmxCollectorMemoryUsageProvider] Memory usage collection threshold set for Par Eden Space to 243959620 of max 279183360
2019-03-27 12:43:41 INFO [JmxCollectorMemoryUsageProvider] Memory usage collection threshold set for CMS Old Gen to 1571649723 of max 1798569984
2019-03-27 12:43:41 INFO [Collector] OneAgent listen port: 8043 (non-TLS: 8042)


1 REPLY 1

david_n
Inactive

Hello Jesus,

According to this post, this warning is not a big deal. Your collector and agents should continue to work without a problem even if they can't figure out the fully qualified domain name.

https://answers.dynatrace.com/spaces/148/uem-open-q-a_2/questions/166425/fqdnresolutionexceptioncann...

Thanks,

David Nicholls