Buffered And Unbuffered Logging - Red Hat CERTIFICATE SYSTEM 8.0 - ADMINISTRATION Admin Manual

Log level Message category
2 Warning
3 Failure; the default selection
for system and error logs
4 Misconfiguration
5 Catastrophic failure
6 Security-related events
Table 15.2. Log Levels and Corresponding Log Messages
There are an additional four log levels available for TPS and RA subsystem logs:
Log level Message category
7 PDU related events
(debugging)
8 PDU related events
9 PDU related events
10 All logging levels
Table 15.3. TPS and RA Log Levels and Log Entries
Log levels can be used to filter log entries based on the severity of an event. By default, log level 3
(Failure) is set for all services.
The log level is successive; specifying a value of 3 causes levels 4, 5, and 6 to be logged. Log data
can be extensive, especially at lower (more verbose) logging levels. Make sure that the host machine
has sufficient disk space for all the log files. It is also important to define the logging level, log rotation,
and server-backup policies appropriately so that all the log files are backed up and the host system
does not get overloaded; otherwise, information can be lost.

15.1.3. Buffered and Unbuffered Logging

The Certificate System supports buffered logging for all types of logs. The server can be configured for
either buffered or unbuffered logging.
If buffered logging is configured, the server creates buffers for the corresponding logs and holds the
messages in the buffers for as long as possible. The server flushes out the messages to the log files
only when one of the following conditions occurs:
• The buffer gets full. The buffer is full when the buffer size is equal to or greater than the value
specified by the bufferSize configuration parameter. The default value for this parameter is 512
KB.
• The flush interval for the buffer is reached. The flush interval is reached when the time interval
since the last buffer flush is equal to or greater than the value specified by the flushInterval
configuration parameter. The default value for this parameter is 5 seconds.
• When current logs are read from Console. The server retrieves the latest log when it is queried for
current logs.
Buffered and Unbuffered Logging
Description
These messages are warnings only and do not indicate any failur
These messages indicate errors and failures that prevent the serv
operation (User authentication failed or Certificate revoked) and u
back the request it processed for a client through the same chann
These messages indicate that a misconfiguration in the server is
These messages indicate that, because of an error, the service ca
These messages identify occurrences that affect the security of th
revoked or unlisted certificate.
Description
These messages contain debugging information for PDU events.
information for normal use.
These messages relate transactions and rules processed on a PD
This log levels gives verbose log messages for events processed
This log level enabled all logging levels for the TPS logs.
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