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# Domain --> Configuration --> Logging

Tasks Related Topics Attributes

## Overview

The Domain—>Configuration—>Logging tab configures the location, file-rotation criteria, and number of files that the Administration Server uses to store domain log messages.

The domain's log contains messages that individual servers within the domain have forwarded. By default, only the log messages of an `ERROR` or higher severity are forwarded from the local servers to the domain log. To change the default, you must create a domain log filter.

## Tasks

Viewing the Domain Log

Rotating Log Files

Specifying the Messages That a Server Forwards to the Domain Log

Viewing Server Logs

## Related Topics

Overview of WebLogic Server Log Messages and Log Files

## Attributes

Table 68-1

Attribute Label | Description | Value Constraints
--- | --- | ---
File Name | The name of the file that stores current log messages for the domain log. If the pathname is not absolute, the path is assumed to be relative to the domain directory. To include a time or date stamp in the file name when the log file is rotated, add `java.text.SimpleDateFormat` variables. Surround each variable with percentage (`%`) characters. For example, `wl-domain_%yyyy%_%MM%_%dd%_%hh%_%mm%.log` If you do not include a time and date stamp, the rotated log files are numbered in order of creation `filename` `nnnnn`, where `filename` is the name configured for the log file. MBean: `weblogic.management. configuration.LogMBean` Attribute: `FileName` | Default: `wl-domain.log` Configurable: yes
Rotation Type | Criteria for moving old log messages to a separate file: `None`. Messages accumulate in a single file. You must erase the contents of the file when the size is unwieldy. `By Size`. When the log file reaches the size that you specify in `FileMinSize`, the server renames the file as FileName.n. `By Time`. At each time interval that you specify in `TimeSpan`, the server renames the file as FileName.n. After the server renames a file, subsequent messages accumulate in a new file with the name that you specified in `FileName`. MBean: `weblogic.management. configuration.LogMBean` Attribute: `RotationType` | Default: none Valid values: bySize byTime none Dynamic: yes
Minimum File Size | The size (1 - 65535 kilobytes) that triggers the server to move log messages to a separate file. After the log file reaches the specified minimum size, the next time the server checks the file size, it will rename the current log file as FileName.n and create a new one to store subsequent messages. (This field is relevant only if you set Rotation Type to By Size.) MBean: `weblogic.management. configuration.LogMBean` Attribute: `FileMinSize` | Units: kilobytes Minimum: 1 Maximum: 65535 Default: 500 Configurable: yes Dynamic: yes
Rotation Time | Determines the start time (hour and minute) for a time-based rotation sequence. At the time that this value specifies, the server renames the current log file as `FileName.n`. Thereafter, the server renames the log file at an interval that you specify in FileTimeSpan. Use the following format: `hh`:`mm`, where `hh` is the hour in a 24-hour format and `mm` is the minute. If the time that you specify has already past, then the server starts its file rotation immediately. MBean: `weblogic.management. configuration.LogMBean` Attribute: `RotationTime` | Default: 00:00 Configurable: yes Dynamic: yes
File Time Span | The interval (in hours) at which the server saves old log messages to another file. This value is relevant only you use the time-based rotation type. MBean: `weblogic.management. configuration.LogMBean` Attribute: `FileTimeSpan` | Units: hours Minimum: 1 Default: 24 Dynamic: yes
Limit Number of Retained Log Files | Limits the number of files that a server creates to store old messages to the maximum number specified in `FileCount`. After the server reaches this limit, it overwrites the oldest file. If you do not enable this option, the server creates new files indefinitely. You must clean up these files as you require. This value is relevant only if you specify a file rotation type of `SIZE` or `TIME`. MBean: `weblogic.management. configuration.LogMBean` Attribute: `NumberOfFilesLimited` | Default: false Valid values: true false Dynamic: yes
Log Files to Retain | The maximum number of log files that the server creates when it rotates the log. Only valid if `isNumberOfFilesLimited` is true and `setRotationType` is either `Size` or `Time`. MBean: `weblogic.management. configuration.LogMBean` Attribute: `FileCount` | Default: 7 Dynamic: yes