Reads the current policy for the LogStore, discarding any changes that may have been made.
Assembly: System.IO.Log (in System.IO.Log.dll)
The set of policies installed on the log is invalid.
A policy of the log prevented this operation from completing.
The request could not be performed because of an unexpected I/O exception.
Setting this policy is not supported on the current platform.
The method was called after the sequence has been disposed of.
There is not enough memory to continue the execution of the program.
The record sequence is full.
Access for the specified log store is denied by the operating system.
This example shows how to use the LogPolicy class to set policy for a log record sequence.
// SET LOG POLICY LogPolicy policy = sequence.LogStore.Policy; // Set AutoGrow policy. This enables the log to automatically grow // when the existing extents are full. New extents are added until // we reach the MaximumExtentCount extents. // AutoGrow policy is supported only in Windows Vista and not available in R2. //policy.AutoGrow = true; // Set the Growth Rate in terms of extents. This policy specifies // "how much" the log should grow. policy.GrowthRate = new PolicyUnit(2, PolicyUnitType.Extents); // Set the AutoShrink policy. This enables the log to automatically // shrink if the available free space exceeds the shrink percentage. // AutoGrow/shrink policy is supported only in Windows Vista and not available in R2. //policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage); // Set the PinnedTailThreshold policy. // A tail pinned event is triggered when there is no // log space available and log space may be freed by advancing the base. // The user must handle the tail pinned event by advancing the base of the log. // If the user is not able to move the base of the log, the user should report with exception in // the tail pinned handler. // PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests // for advancing the base of the log. The amount of space can be in percentage or in terms of bytes // which is rounded off to the nearest containers in CLFS. The default is 35 percent. policy.PinnedTailThreshold = new PolicyUnit(10, PolicyUnitType.Percentage); // Set the maximum extents the log can have. policy.MaximumExtentCount = 6; // Set the minimum extents the log can have. policy.MinimumExtentCount = 2; // Set the prefix for new containers that are added. // when AutoGrow is enabled. //policy.NewExtentPrefix = "MyLogPrefix"; // Set the suffix number for new containers that are added. // when AutoGrow is enabled. policy.NextExtentSuffix = 3; // Commit the log policy. policy.Commit(); // Refresh updates the IO.Log policy properties with current log policy // set in the log. policy.Refresh(); // LOG POLICY END //
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.