Fallback Log
If connection to the Admin Process (AP) is lost, log messages cannot be sent to the AP and may get lost. To avoid this, log messages from every Transaction Engine (TE) and Storage Manager (SM) are written to a fallback log.
Each database process has one log called nuodb.sid<SID>.log, where SID is the start ID of the database process.
The fallback log is created in the same directory as other NuoDB log files.
The fallback log contains the following:
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All CRITICAL messages, regardless of whether they were previously sent to the AP
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ERROR messages that could not be sent to the AP
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Messages generated in extremis (For example, messages generated by signal handlers, where network access or stdout/stderr cannot be used)