It is possible to tell UndoDB to generate extra logging messages which help us better to understand any issues that you find. Collecting this data before sending us the issue can help us to resolve your issues more quickly. Enabling additional logging can be done in a number of ways:
- Start UndoDB with the
UNDODB_debug_levelenvironment variable set to 2. If UndoDB is normally started with a command like
udb <application>, you would instead use
UNDODB_debug_level=2 udb <application>.
- Logging can also be enabled during runtime. At the
maint-undodb-set-log-levels -1 2. This can only be done after the debug session has started.
These options cause additional information to be logged internally, which can then be dumped to files with the
maint-undodb-dump-internal-log command. The log files will have names like
There are a few other commands that can provide useful diagnostics and are typed at the
info proc mappings
- Lists all the memory maps in use, including any maps created by UndoDB for its own use.
- Show some statistics relating to UndoDB's code analysis.
- Shows all active snapshots.
If you can send us the log files and the output of these commands, it will help us to identify or rule out any issues with UndoDB.