System Logs for MariaDB Enterprise ColumnStore
MariaDB Enterprise ColumnStore writes to several different system log files that contain messages for different log levels.
Reference material is available for MariaDB Enterprise ColumnStore.
MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server.
The system logs are intended for:
Monitoring the system status
Diagnosing problems with queries
Diagnosing communication problems between nodes
The system logs use the following log format:
timestamp hostname process name[pid] time | session id | txn id | thread id | logging level subsystem_id message
The fields in each log message are:
The timestamp for the log message in the format
The hostname of the node that logged the message
The name of the ColumnStore process (such as
Execution time for this step in seconds
The session ID that shows in the process list
The transaction ID
The thread ID
The log level for the log message
The subsystem ID for the log message
The log message.
The system logs use the following log levels in the
logging level field:
Log Level ID
Log Level Name
The system logs use the following subsystem IDs in the
subsystem id field:
MariaDB Enterprise ColumnStore writes its system logs to the
The system logs are divided into 5 different log files:
MariaDB Enterprise ColumnStore uses
rsyslog to configure its system logs.
By default, the
rsyslog configuration is at
System Logs by MariaDB Enterprise ColumnStore Version
Choose a version of MariaDB Enterprise ColumnStore to learn the version-specific details: