EM 12c : Error While Applying Monitoring Template 'Encountered communication error between OMS and Agent' in Console

(Doc ID 2245631.1)

Last updated on MARCH 30, 2017

Applies to:

Enterprise Manager Base Platform - Version 12.1.0.5.0 and later
Information in this document applies to any platform.

Symptoms

When user is trying to apply monitoring template on host it errors out with 'Encountered communication error between OMS and Agent'

 

From emoms.trc

2017-01-19 10:38:16,260 [Finalizer] DEBUG http.HTTPClientTerminus logp.251 - HTTPClientTerminus.lifecycle::finalized terminus oracle.sysman.gcagent.comm.oms.http.HTTPClientTerminus@48897087
2017-01-19 10:38:16,261 [RJob Step 82077] INFO applicationModule.ApplyTemplateAMImpl logp.251 - ApplyTemplateAMImpl:getOperationDetails OUT : templateCopyGuid = A3DF8DF06FDC94D54B4168761ABECE31 . Total time taken = 3 .

2017-01-19 10:38:16,305 [RJob Step 82077] DEBUG framework.proxy logp.251 - Ignoring call to java.sql.Connection.close
2017-01-19 10:38:16,305 [RJob Step 82077] DEBUG http.HTTPClientTerminus logp.251 - HTTPClientTerminus.lifecycle::terminus oracle.sysman.gcagent.comm.oms.http.HTTPClientTerminus@794c1aef created, seed: 148479349630
2017-01-19 10:38:16,307 [RJob Step 82077] DEBUG oms.TMRemoteClient logp.251 - TMRemoteClient[0x4d3fc56a] is now BUSY
at oracle.sysman.gcagent.oms.TMRemoteClient.reserveTerminus(TMRemoteClient.java:6182)
at oracle.sysman.gcagent.oms.TMRemoteClient.makeSingleRequest(TMRemoteClient.java:6388)
at oracle.sysman.gcagent.oms.TMRemoteClient.makeSingleRequest(TMRemoteClient.java:6364)
at oracle.sysman.gcagent.oms.TMRemoteClient.getTargetInstances(TMRemoteClient.java:7043)
at oracle.sysman.gcagent.oms.TMRemoteClient.getTargetInstance(TMRemoteClient.java:705)

2017-01-19 10:38:16,308 [RJob Step 82077] DEBUG http.HTTPClientTerminus logp.251 - Establishing connection to agent at https://aget123.oracle.com:3872/emd/main/...
2017-01-19 10:38:16,308 [RJob Step 82077] DEBUG client.Communication logp.251 - using cached proxy details for https://aget123.oracle.com:3872/emd/main/
2017-01-19 10:38:16,309 [RJob Step 82077] DEBUG client.Communication logp.251 - https://aget123.oracle.com:3872/emd/main/ accessed directly (without proxy)
2017-01-19 10:38:16,309 [RJob Step 82077] DEBUG http.TMClientConnectionManager logp.251 - checking out connection to agent at https://aget123.oracle.com:3872/emd/main/
2017-01-19 10:38:16,310 [RJob Step 82077] DEBUG http.ClientConnection logp.251 - setting user-interaction allowed to false
2017-01-19 10:38:16,335 [RJob Step 82077] DEBUG http.OMSHttpsContext logp.251 - client SSL session negotiated with aget123.oracle.coma:3872, using prototocol TLSv1.2 and ciphersuite SSL_RSA_WITH_3DES_EDE_CBC_SHA
2017-01-19 10:38:16,336 [RJob Step 82077] DEBUG http.OMSHttpsContext logp.251 - SSL Packet Buffer Size: 16921
2017-01-19 10:38:16,336 [RJob Step 82077] DEBUG http.OMSHttpsContext logp.251 - SSL Application Buffer Size: 16916
2017-01-19 10:38:16,337 [RJob Step 82077] DEBUG http.HTTPClientTerminus logp.251 - Connection established.
2017-01-19 10:38:16,337 [RJob Step 82077] DEBUG http.HTTPClientTerminus logp.251 - sending request message: GetTargetsRequest (host.aget123.oracle.coma)
2017-01-19 10:38:16,337 [RJob Step 82077] INFO http.HTTPClientTerminus logp.251 - terminus sending message 148479349630001
2017-01-19 10:38:16,338 [RJob Step 82077] DEBUG http.TMClientConnectionManager logp.251 - renewing connection to agent at https://aget123.oracle.com:3872/emd/main/ for 3 MINUTES
2017-01-19 10:38:16,338 [RJob Step 82077] DEBUG http.ClientConnection logp.251 - HTTP request read timeout is set to 180.000(s)
2017-01-19 10:38:16,339 [RJob Step 82077] DEBUG http.ClientConnection logp.251 - sending request using TMClientProtocol
2017-01-19 10:38:16,339 [RJob Step 82077] DEBUG http.ClientConnection logp.251 - HTTP request (sent): POST /emd/main/
Client-Type: TMClient
X-ORCL-EMOV: 12.1.0.1.0
X-ORCL-EMAK: ********************************
X-Client-Host: xxxxxx

 

 

Cause

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