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EM 12c : Agent が Out Of Memory Exception " unable to create new native thread" Out Of System Resources で再起動する (Doc ID 2220678.1)

Last updated on FEBRUARY 15, 2019

適用範囲:

Enterprise Manager Base Platform - バージョン 12.1.0.1.0 以降
Linux x86-64
Oracle Solaris on SPARC (64-bit)
HP-UX Itanium
本文書利用上のご注意
  本文書は英語の文書 <Document 1499576.1> (最終メジャー更新日: 2018年04月28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。

現象

$<AGENT_INST>/bin/emctl start agent コマンドの実行で以下のエラーが発生します:

Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
Starting agent ...................................... failed.
Fatal agent error: Deadlock Detector failed at Startup
Consult emctl.log and emagent.nohup in: /u01/app/oracle/product/agent12c/agent_inst/sysman/log

        または

Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
Starting agent ............................ failed.
Fatal agent error: Request Dispatcher failed at Startup
Consult emctl.log and emagent.nohup in: /u01/app/oracle/product/agent12c/agent_inst/sysman/log

<AGENT_INST>/sysman/log/gcagent.log では以下の例外が出力されています:

2012-09-18 16:24:36,037 [147:GC.Executor.5 (host:<TARGET_NAME>:LoadHPUX) (host:migzm8a2oracle.com:LoadHPUX:Load)] ERROR - host:migzm8a2.migros.ch:LoadHPUX:Load
java.lang.OutOfMemoryError: unable to create new native thread
 at java.lang.Thread.start0(Native Method)
2012-10-11 08:52:38,653 [148:GC.Executor.7 (host:<TARGET_NAME>:NetworkHPUX)] ERROR - Critical error: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:640) at oracle.sysman.gcagent.util.channel.OSChannel.runCommand(OSChannel.java:442)
2012-10-11 08:52:38,653 [148:GC.Executor.7 (host:<TARGET_NAME>:NetworkHPUX)] ERROR - Critical error: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:640) at oracle.sysman.gcagent.util.channel.OSChannel.runCommand(OSChannel.java:442)

<AGENT_INST>/sysman/log/gcagent_errors.log では以下の例外が出力されています:

(oracle_database:<TARGET_NAME>:ocm_instrumentation)] ERROR - Critical error: java.lang.OutOfMemoryError: unable to create new native thread  at java.lang.Thread.start0(Native Method)

 

変更点

 

原因

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