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EM 12c : Enterprise Manager 12c Cloud Control emctl start agent Fails With Error: Fatal agent error: Request Dispatcher failed at Startup (Doc ID 1611173.1)

Last updated on APRIL 14, 2018

Applies to:

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


Starting the Enterprise Manager Cloud Control Agent:


/AGENT_INST/sysman/log/gcagent.log reports the following message

Caused by: Failed
to initialize agntstmp.txt file
at oracle.sysman.gcagent.tmmain.lifecycle.TMComponentSvc.invokeNotifier(
at oracle.sysman.gcagent.tmmain.lifecycle.TMComponentSvc.invokeInitializationStep(
... 5 more
Caused by: Can't remove existing backup file
at oracle.sysman.gcagent.common.FileUtils.safeSetContents(


$/AGENT_INST/bin/emctl start agent

fails with following error

Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
Starting agent ........ failed.
Ping Manager failed at Startup
Consult emctl.log and emagent.nohup in: /data/oracle/agent/product/agent12c/agent_inst/sysman/log

/AGENT_INST/sysman/log/gcagent.log reports file IO exception

2014-11-07 21:22:44,286 [1930450:GC.Executor.778231 (oracle_database:sgpssp01_prd:log_full) (oracle_database:sgpssp01_prd:log_full:dumpFull)] ERROR - File not found exception /data/oracle/agent/product/agent12c/agent_inst/sysman/emd/state/statemgmt/oracle_database/sgpssp01_prd/SevDiff/1.tmp (Invalid file system control data detected.)

Deleting file  has filesystem related error

$ rm agntstmp.txt

rm: agntstmp.txt not removed.
Invalid file system control data detected


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