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EM 12c : エージェント使用不可 (Agent is unreachable) (Doc ID 2206310.1)

Last updated on JULY 30, 2019

適用範囲:

Enterprise Manager Base Platform - バージョン 12.1.0.1.0 以降
この文書の内容はすべてのプラットフォームに適用されます。
本文書利用上のご注意
  本文書は英語の文書 <Document 1953494.1> (最終メジャー更新日: 2015年05月12日) の日本語翻訳版です。
  英語の文書のメジャー更新に応じて本文書を随時更新いたします。

目的

以下の何れかのメッセージで Agent が使用不可になります


$/AGENT_INST/bin/emctl status agent  は以下の例外を報告します

$AGENT_INST/bin/emctl status agent
fails with following message :
Oracle Enterprise Manager Cloud Control 12c Release 3  
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Status agent Failure:unable to connect to http server at https://<agent hostname>.<domainname>:<agent port>/emd/lifecycle/main/. [peer not authenticated

又は

$/AGENT_INST/bin/emctl status agent
Oracle Enterprise Manager 12c Cloud Control 12.1.0.1.0
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Agent Version     : 12.1.0.1.0
OMS Version       : 12.1.0.1.0
Protocol Version  : 12.1.0.1.0
Agent Home        : $AGENT_HOME
Agent Binaries    : $AGENT_BASE_DIR\core\12.1.0.1.0
Agent Process ID  : 5976
Parent Process ID : 3548
Agent URL         : https://<agent hostname>.<domainname>:<agent port>/emd/main/
Repository URL    : https://<oms hostname>.<domainname>:<oms port>/empbs/upload
Started at        : 2012-07-25 14:13:56
Started by user   : <username>
Last Reload       : (none)
Last successful upload                       : (none)
Last attempted upload                        : (none)
Total Megabytes of XML files uploaded so far : 0
Number of XML files pending upload           : 0
Size of XML files pending upload(MB)         : 0
Available disk space on upload filesystem    : 1.91%
Collection Status                            : [DISK_FULL]
Last attempted heartbeat to OMS              : 2012-07-25 15:03:32
Last successful heartbeat to OMS             : 2012-07-25 15:03:32

---------------------------------------------------------------
Agent is Running and Ready

$/AGENT_INST/bin/emctl status agent  
以下の収集ステータス例外を報告します

Collection Status Shows '[DISK_FULL]'
  又は
Collection Status Shows '[UPLOAD_SYSTEM_FATAL_ERRORL]'
  又は
Collection Status Shows '[COLLECTIONS_HALTED]'
  又は
Collection Status Shows '[DISABLED]'

 $/AGENT_INST/bin/emctl pingOMS

以下の例外で失敗します

$AGENT_INST/bin/emctl upload agent
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
EMD upload error:full upload has failed: Disabling the upload system due to protocol internal programming exception.
 
$/AGENT_INST/bin/emctl pingOMS
fails with the following error
Oracle Enterprise Manager Cloud Control 12c Release 3  
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
EMD pingOMS error: OMS sent an invalid response: "ERROR- Failed to update Target type Metadata"

 

通知 / アラートの生成

'Agent Unreachable (REASON = unable to connect to http server [peer not authenticated])' として通知が行われる可能性があります

'Message=Agent is Unreachable (REASON = unable to connect to http server at https://<Agent Hostname>.<domainname>:<agent port>/emd/main/. [peer not authenticated]) but the host is reachable. として通知が行われる可能性があります
"Message=WARNING:Agent File system is almost FULL. Metric Collection is  DISABLED." として通知が行われる可能性があります



ログには以下の例外が確認できます

/gc_inst/em/EMGC_OMS1/sysman/log/emoms.trc reports following message
    WARN emSDK.comm setInstanceReadTimeout.10588 - unable to set the instance read timeout: unable to connect to http server at https://<agent hostname>.<domainname>:<agent port>/emd/main/. [peer not authenticated]

又は

/gc_inst/em/EMGC_OMS1/sysman/log/emoms_pbs.log
   2013-09-24 13:59:23,535 [[ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'] ERROR gcloader.Receiver logp.251 - Error occurred in checking information between Agent and OMS oracle.sysman.emSDK.core.target.DuplicateEntityException: ORA-20500: Multiple agents detected for :(host = <hostname>


又は

/AGENT_INST/sysman/lof/emdctlj.log
       2014-11-05 13:40:14,881 [main] INFO  - unable to connect to the agent at https://<agent hostname>.<domainname>:<agent port>/emd/main/ [Connection refused]
oracle.sysman.emSDK.agent.comm.exception.ConnectException: unable to connect to the agent at https://<agent hostname>.<domainname>:<agent port>/emd/main/ [Connection refused]

又は
/AGENT_INST/sysman/log/gcagent.log
   <timestamp>,306 [29:73E85E39] WARN - *jetty*: EXCEPTION java.io.IOException: Too many open files
   at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
   at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:152)
又は
 
/AGENT_INST/sysman/log/gcagent.log
    2013-05-29 11:25:31,984 [1:3305B9] DEBUG - Upload breadcrumb=Starting a purge  for overage/fileOverage = -2437.0/0
    2013-05-29 11:25:31,984 [1:3305B9] DEBUG - Upload breadcrumb=Purge unable to  purge requested overages
    2013-05-29 11:25:31,984 [1:3305B9] WARN - Upload system can't accept inbound  message; can't purge
    2013-05-29 11:25:31,985 [1:3305B9] DEBUG - Collections disabled due to  DISK_FULL


又は

'ORA-20601: Duplicate record. The last error ' reported in mgmt_system_error_log

 

詳細

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本書の内容
目的
詳細
 Agent 12.1.0.4 の解決策
 Agent 12.1.0.3 の解決策
 12.1.0.2 の解決策
 Agent 12.1.0.1 の解決策
参照情報

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