Flex 2 Developer's Guide > Data Access and Interconnectivity > Configuring the Message Service > Configuring Message Service destinations > Setting server properties

Setting server properties

A destination contains a set of properties for controlling server-related parameters. The following example shows server-related properties of a destination:

...
    <destination id="chat-topic">
        <properties>
...
            <server>
                <max-cache-size>1000</max-cache-size>
                <message-time-to-live>0</message-time-to-live>
                <durable>true</durable>
                <durable-store-manager>
                    flex.messaging.durability.FileStoreManager
                </durable-store-manager>
            </server>
        </properties>
    </destination>
...

Message Service destinations use the following server-related properties:

Property	Description
`max-cache-size`	Maximum number of messages to maintain in memory cache.
`message-time-to-live`	How many milliseconds that a message is kept on the server. A value of 0 means the message lasts forever.
`durable`	Boolean value that indicates whether messages should be saved in a durable message store to ensure that they survive connection outages and reach destination subscribers. When the JMS adapter is used, it inherits the `durable` value.
`durable-store-manager`	Durable store manager class to use when not using the JMS adapter. By default, the flex.messaging.durability.FileStoreManager, included with Flex Data Services, stores messages in files in the /WEB-INF/flex/message_store/DESTINATION_NAME of your Flex web application. You can change this location by setting the `file-store-root` property. Note: Using the Flex Data Services FileStoreManager for durable messaging is not cluster-safe.
`batch-write-size`	(Optional) Number of durable message files to write in each batch.
`file-store-root`	(Optional) Location for storing durable message files.
`max-file-size`	(Optional) Maximum file size in kilobytes for durable message files.

Flex 2.01