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Troubleshooting Why EM Express is not Working (Doc ID 1604062.1)

Last updated on MARCH 07, 2023

Applies to:

Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version to [Release 12.1]
Information in this document applies to any platform.


 This Note is Created to Troubleshoot EM Express not working issues and also lists EM Express known issues and bugs.

Troubleshooting Steps

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In this Document
Troubleshooting Steps
 1- Review the Basic EM Express Configuration
 2- Make Sure the XML Database option is installed and valid
 3- Make Sure that the Listener Register the XML DB :
 4- Make sure the SYSTEM account are not Locked or Expired :
 5- Connect to the XDB service as the SYSTEM user
 6- Try Different Browsers (IE,Chrome,FireFox) and/or Try To Disable all Browser Addons and/or Try old versions of Browsers which were available at db release
 7- Check if Flash Plugin is Enabled
 Web browsers Requirements
 From Firefox
 From Google Chrome
 8- Check The Alert Log file and Listener Log file for errors logged around the time of launching the URL for EM Express
 9- Check the listener end points of the XML DB HTTP server
 10- Wallet file permissions when RDBMS sits on top of GI with role separation -- This case is only applicable to UNIX platform.
 11- Known errors which can affect EM Express :
 ORA-00600: internal error code, arguments: [kziaulslt: lid], [1821]
 ORA-00600: internal error code, arguments: [kziaulslt: lid], [1818]
 Connection Fail : Connection with database failed. Database instance might be down. Try again once it is up
 Detail : [IOErrorEvent type='ioError' bubbles=false cancelable=false eventPhase=2 text='Error #2032']
 ORA-07445: exception encountered: core dump [qervwRowProcedure()+] [SIGSEGV] [ADDR:0x5] [PC:0xB5C0C21] [Address not mapped to object]
 ORA-07445: exception encountered: core dump [qervwFetch()+] [ACCESS_VIOLATION] [ADDR:0x8] [PC:0x1464D2038] [UNABLE_TO_READ] []
after successfully login to EM Express the chart of [Resources] & [SQL Monitor] Charts can not be loaded , and stays loading forever

 Bug 16219867 : EM Express URL displayed by the DBCA summary may not work
 12- EM Express Deprecation announcement :

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