RMFlushInterval

HKLM\SOFTWARE\Microsoft\MSMQ\Parameters

Data type

Range

Default value

REG_DWORD

0x0–0xFFFFFFFF milliseconds

0x1B7740 (1,800,000 millseconds = 30 minutes)

Description

Determines how often Message Queuing takes a checkpoint of Resource Manager transactions. The checkpoint saves the current transactions and exactly-once-delivery state of Message Queuing.

The value of this entry is used when no checkpoints have been taken in the Resource Manager as a result of other events, such as when its log file is more than half full. It guarantees that a checkpoint is performed no less frequently than the time specified.

If this value is too large, it might prolong the time it takes to recover files to their last checkpoint. If the value is too small, frequent checkpoints can degrade Message Queuing performance.

Note Image Note

Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.

Caution Image Caution

Do not change the value of this entry. An inappropriate value can interfere with logging, transactions, and the exactly-once delivery mechanism.