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Jul 14, 2008 at 02:36 AM

J2EE engine was always down when I accessed it in the web browser!

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Hi,gurus:

Having installed netweaver 7.0 SR3 and made the post-installation of xi with nwa, I accessed the j2ee engine with the URL "http://<hostname>:50100/sld or http://<hostname>:50100/irj".Sometimes the webpage could be accessed,but other times the webpage was blank,and after I refreshed the webpage again,it displayed the error like "503 service unavailable".Then I found the color of disp+work.exe and server0 in MMC was yellow.After several minutes,it turned green again.Then I could access the j2ee engine successfully.However,it stopped again after I accessed some webpages.

This problem has embarassed me several weeks,could you help me?Any help would be appreciated,tks in advance.

I picked up some related message which may be helpful to resolve the problem:

*defaultTrace0.trc: *

1.Cannot lock configuration;it is already locked.

Caused by :com.sap...LockException:.........J2EE_CONFIGURATION_MANAGER.....it is in use by another owner.The lock collision occurred with user <internal>

2.java.security.keyStoreException: cannot get root keystore view configuration; A configuration with the path "keystore" does not exist.

  • dev_server0.xml:*

1.com.sap.secruity.api.NoSuchRoleException:Role with uniqueName system_admin_role not found!

com.sap.secruity.api.NoSuchRoleException:Role with uniqueName content_admin_role not found! 2.com.sap.security.api.NoSuchGroupException:Group "Administrators" does not exist.

3.password logon no longer possible - too many failed attempts.