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Diagnostic Archives: Configuration

Configuration Options     Advanced Configuration Options     Related Tasks     Related Topics

Use this page to configure how and where the current server archives its monitoring and diagnostics data.

Configuration Options

Name	Description
Server	The name of the server. MBean Attribute: WLDFServerDiagnosticMBean.Name Changes take effect after you redeploy the module or restart the server.
Type	Determines whether the current server persists its harvested metrics and event data in a diagnostic store (file-based store) or a JDBC based archive. The default store is file-based. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticDataArchiveType Changes take effect after you redeploy the module or restart the server.
Directory	The directory in which the current server maintains its diagnostic store. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreDir Changes take effect after you redeploy the module or restart the server.
Diagnostics Store File Locking Enabled	Determines whether OS file locking is used. When file locking protection is enabled, a store boot fails if another store instance already has opened the store files. Do not disable this setting unless you have procedures in place to prevent multiple store instances from opening the same file. File locking is not required but helps prevent corruption in the event that two same-named file store instances attempt to operate in the same directories. This setting applies to both primary and cache files. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreFileLockingEnabled Changes take effect after you redeploy the module or restart the server.
Data Source	The JDBC data source that the server uses to archive its harvested metrics and event data.
Preferred Store Size	Return the preferred limit on the size of diagnostic store file in MB. MBean Attribute: WLDFServerDiagnosticMBean.PreferredStoreSizeLimit Minimum value: 10
Store Size Check Period	Return the period in hours at which diagnostic store file size check will be performed MBean Attribute: WLDFServerDiagnosticMBean.StoreSizeCheckPeriod Minimum value: 1
Store Size Check Period	Return the period in hours at which diagnostic store file size check will be performed MBean Attribute: WLDFServerDiagnosticMBean.StoreSizeCheckPeriod Minimum value: 1
Data Retirement Enabled	This attribute controls if configuration based data retirement functionality is enabled on the server. If disabled, all retirement policies will be disabled. MBean Attribute: WLDFServerDiagnosticMBean.DataRetirementEnabled
Name	The user-specified name of this MBean instance. This name is included as one of the key properties in the MBean's javax.management.ObjectName: Name=user-specified-name MBean Attribute: WLDFDataRetirementMBean.Name Changes take effect after you redeploy the module or restart the server.
Type	Returns the type of the MBean. MBean Attribute: WLDFDataRetirementMBean.Type Changes take effect after you redeploy the module or restart the server.
Archive Name	Name of the archive for which data retirement is configured MBean Attribute: WLDFDataRetirementMBean.ArchiveName
Enabled	Enable data retirement MBean Attribute: WLDFDataRetirementMBean.Enabled
Retirement Age	Retirement age for records in hours. Older records will be eligible for deletion. MBean Attribute: WLDFDataRetirementByAgeMBean.RetirementAge Minimum value: 1
Retirement Time	This attribute specifies the hour of day at which the data retirement task will first run during the day. MBean Attribute: WLDFDataRetirementMBean.RetirementTime
Retirement Period	This attribute specifies the period in hours at which the data retirement task will be periodically performed for the archive during the day after it is first executed. The value of this attribute must be positive MBean Attribute: WLDFDataRetirementMBean.RetirementPeriod Minimum value: 1

Advanced Configuration Options

Name	Description
Diagnostics Store Min Window Buffer Size	The minimum amount of data, in bytes and rounded down to the nearest power of 2, mapped into the JVM's address space per diagnostic store file. Applies only when a native wlfileio library is loaded. See Diagnostic Store Maximum Window Buffer Size. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreMinWindowBufferSize Minimum value: -1 Maximum value: 1073741824 Changes take effect after you redeploy the module or restart the server.
Diagnostics Store Max Window Buffer Size	The maximum amount of data, in bytes and rounded down to the nearest power of 2, mapped into the JVM's address space per diagnostic store file. Applies only when a native wlfileio library is loaded. A window buffer does not consume Java heap memory, but does consume off-heap (native) memory. If the store is unable to allocate the requested buffer size, it allocates smaller and smaller buffers until it reaches DiagnosticStoreMinWindowBufferSize, and then fails if it cannot honor DiagnosticStoreMinWindowBufferSize. Oracle recommends setting the max window buffer size to more than double the size of the largest write (multiple concurrently updated records may be combined into a single write), and greater than or equal to the file size, unless there are other constraints. 32-bit JVMs may impose a total limit of between 2 and 4GB for combined Java heap plus off-heap (native) memory usage. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreMaxWindowBufferSize Minimum value: -1 Maximum value: 1073741824 Changes take effect after you redeploy the module or restart the server.
Diagnostics Store IO Buffer Size	The I/O buffer size, in bytes, automatically rounded down to the nearest power of 2, controls the largest write size. When a native wlfileio driver is available, the setting applies to off-heap (native) memory. When a native wlfileio driver is not available, the setting applies to JAVA heap memory. For the best runtime performance, Oracle recommends setting DiagnosticStoreIOBufferSize so that it is larger than the largest write (multiple concurrent store requests may be combined into a single write). See AllocatedIOBufferBytes to find out the actual allocated off-heap (native) memory amount. It is a multiple of IOBufferSize MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreIoBufferSize Minimum value: -1 Maximum value: 67108864 Changes take effect after you redeploy the module or restart the server.
Diagnostics Store Max File Size	The maximum file size, in bytes. The DiagnosticStoreMaxFileSize value affects the number of files needed to accommodate a diagnostic store of a particular size (number of files = diagnostic store size/MaxFileSize rounded up). A diagnostic store automatically reuses space freed by deleted records and automatically expands individual files up to DiagnosticStoreMaxFileSize if there is not enough space for a new record. If there is no space left in exiting files for a new record, a diagnostic store creates an additional file. A small number of larger files is normally preferred over a large number of smaller files as each file allocates Window Buffer and file handles. If DiagnosticStoreMaxFileSize is larger than 2^24 * DiagnosticStoreBlockSize, then DiagnosticStoreMaxFileSize is ignored, and the value becomes 2^24 * DiagnosticStoreBlockSize. The default DiagnosticStoreBlockSize is 512, and 2^24 * 512 is 8 GB. Oracle recommends not setting the Diagnostic Store Max File Size above the default value of 1,342,177,280. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreMaxFileSize Minimum value: 10485760 Changes take effect after you redeploy the module or restart the server.
Diagnostics Store Block Size	The smallest addressable block, in bytes, of a file. When a native wlfileio driver is available and the block size has not been configured by the user, the store selects the minimum OS specific value for unbuffered (direct) I/O, if it is within the range [512, 8192]. A file store's block size does not change once the file store creates its files. Changes to block size only take effect for new file stores or after the current files have been deleted. See "Tuning the Persistent Store" in Performance and Tuning for Oracle WebLogic Server. MBean Attribute: WLDFServerDiagnosticMBean.DiagnosticStoreBlockSize Minimum value: -1 Maximum value: 8192 Changes take effect after you redeploy the module or restart the server.

Related Tasks

• Configure diagnostic archives

Related Topics

• Configuring Diagnostic Archives