User guide

Known Problems
16
Release Notes for the CiscoWorks Wireless LAN Solution Engine, Release 2.11
OL-6775-01
CSCsa93623 Pre-patch before you upgrade to
WLSE 2.11 from WLSE 2.7,
2.7.1, 2.9 and 2.9.1a.
When you upgrade from WLSE 2.7, 2.7.1, 2.9 or
2.9.1a to WLSE 2.11, you might encounter the
following problems:
• Some database tables are not trimmed,
which might cause the database tables to
grow very large over a period of time. The
log file (swan.log/jobvm.log/tomcat.log)
shows transaction log full messages.
• Thousands of Unmanaged radios might
appear and cannot be deleted.
• Deleted floors are not cleared from some
tables, which might cause the upgrade to
fai1. After upgrading, radio parameter
generation, self healing, and auto re-site
survey generate runtime errors.
To workaround this problem, you must install
the WLSE-2.x-CSCsa93623 patch before you
upgrade to WLSE 2.11 from any of these WLSE
releases: 2.7, 2.7.1, 2.9 or 2.9.1a.
Running this patch does not correct the root
cause, but the patch eliminates the database
inconsistency and allows you to upgrade to
WLSE 2.11.
Note We strongly recommend that you back
up your database after installing the
patch and before you upgrade to WLSE
2.11. Delete all old backups as they
contain incorrect data.
After you install the patch, if you continue to
run WLSE 2.7, 2.7.1, 2.9, or 2.9.1, the issues
addressed by the patch will recur.
Table 2 Known Problems in the WLSE (Continued)
Bug ID Summary Explanation