Which Statement Best Describes The Db2 Warehouse Deployment Model - T-Tees - Your Answers Await, Life's Questions Unraveled

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13 July 2021

When Db2 Warehouse MPP nodes are being updated concurrently, there might be a condition whereby the /opt/ibm/dsserver/Config/dswebserver.properties file becomes corrupted as multiple nodes try to modify it at the same time. In this release, we have enhanced the dswebserver.properties update code to avoid corruption.

After you upgrade the Db2 common container from v11.5.4-CN2 to v11.5.5.1, the replication web console does not open on the upgraded source or target system because of a problem with the Db2 SSL certificate exchange. For more information, please see the Known Issues section in IBM® Data Replication for Availability documentation.
Backing up with IBM Spectrum Protect (TSM) is not supported from the web console. You can use command line (db_backup) instead.
db_backup/db_restore issue

Version 11.5.5.0 is now available

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Improvements

Version 11.5.4.0-CN2 is now available

Improvements

AD setup failures. A desc’: u’Size limit exceeded error appeared during the setup. As a solution, a new console container is introduced.
Problems when connecting to the database from the console. The problems were caused by an expired SSL certificate. The following error message was shown: Warning: The console is unable to connect to the database. Common reasons are that the target database is offline or the console is unable to connect to the SSL port. To diagnose the problem, use the console to check the system status. If necessary, consult the Db2 logs.” For SSL database connections to work, you need to trust the certificate from all your clients. For detailed instructions, see Secure Socket Layer (SSL) support.
Ability to preserve old certificate files during upgrade. See Preserving old certificate files during upgrade.

Known problems and workarounds

While you’re running the db_restore command from the web console, a “Database restore failed on the web console” error appears. The restore succeeds in backend.

The following problems regarding the SSL certificate are not yet solved:
- BLUDR does not work.
- The db_migrate_iias command does not work with SSL.
- The dbload and dbsql commands do not work with SSL from clients.