Em12c: Cloud Control 12c sends false alerts for ohs1 target every 1 min

(Doc ID 2013052.1)

Last updated on MARCH 08, 2017

Applies to:

Enterprise Manager for Fusion Middleware - Version 12.1.0.4.0 to 12.1.0.7.0
Microsoft Windows x64 (64-bit)

Symptoms

After upgrade to 12cR4 Cloud Control send false alerts for ohs1 targets every 1 min.

gcagent.log shows the following errors

2015-05-04 15:10:40,765 [60:88AC468A:GC.SysExecutor.0 (Ping OMS)] INFO - attempting another heartbeat
2015-05-04 15:11:21,474 [162:3942511A] INFO - Target [oracle_apache./EMGC_GCDomain/instance1/ohs1] is marked as in DOWN state
2015-05-04 15:11:21,474 [162:3942511A] INFO - Target [oracle_apache./EMGC_GCDomain/instance1/ohs1] is marked as in DOWN state
2015-05-04 15:11:21,489 [65:C09F1B94] WARN - Communication error with repository URL = https://test.us.oracle.com:4900/empbs/upload
oracle.sysman.emSDK.agent.comm.exception.ConnectException: unable to connect to the OMS at https://test.us.oracle.com:4900/empbs/upload for upload
at oracle.sysman.gcagent.upload.UploadConnection.newConnectException(UploadConnection.java:333)
at oracle.sysman.gcagent.comm.http.ClientConnection.makeConnection(ClientConnection.java:879)
at oracle.sysman.gcagent.comm.http.OMSConnection.(OMSConnection.java:83)
at oracle.sysman.gcagent.upload.UploadConnection.(UploadConnection.java:111)
at oracle.sysman.gcagent.upload.UploadStoreForward$dequeuer.establishConnection(UploadStoreForward.java:3621)
at oracle.sysman.gcagent.upload.UploadStoreForward$dequeuer.xferFile(UploadStoreForward.java:2962)
at oracle.sysman.gcagent.upload.UploadStoreForward$dequeuer._run(UploadStoreForward.java:3925)
at oracle.sysman.gcagent.upload.UploadStoreForward$dequeuer.run(UploadStoreForward.java:3812)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at oracle.sysman.gcagent.util.system.GCAThread$RunnableWrapper.run(GCAThread.java:189)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)

 

Cause

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