[CONF] Apache ActiveMQ > Per Destination Policies

[Christian Posta (Confluence)]

Christian Posta edited the page: Per Destination Policies ... Common property default description producerFlowControl true the producer will slow down and eventually block if no resources(e.g. memory) are available on the broker. If this is off messages get off-lined to disk to prevent memory exhaustion enableAudit true tracks duplicate messages (which can occur in failover for non-persistent messages) useCache true persistent messages are cached for fast retrieval from store maxPageSize 200 maximum number of persistent messages to page from store at a time maxBrowsePageSize 400 maximum number of persistent messages to page from store for a browser memoryLimit n/a The memory limit for a given destination. This acts as a child to the overall broker memory specified by the <systemUsage>'s memoryLimit attribute. There is no default for this value; it simply acts as a child to the overall broker memory until the broker memory is exhausted. minimumMessageSize 1024 for non-serialized messages (embedded broker) - the assumed size of the message used for memory usage calculation. Serialized messages used the serialized size as the basis for the memory calculation cursorMemoryHighWaterMark 70% the tipping point at which a system memory limit will cause a cursor to block or spool to disk storeUsageHighWaterMark 100% the tipping point at which a system usage store limit will cause a sent to block prioritizedMessages false have the store respect message priority advisoryForConsumed false send an advisory message when a message is consumed by a client advisoryForDelivery false send an advisory message when a message is sent to a client advisoryForSlowConsumers false send an advisory message if a consumer is deemed slow advsioryForFastProducers false send an advisory message if a producer is deemed fast advisoryWhenFull false send an advisory message when a limit (memory,store,temp disk) is full gcInactiveDestinations false delete inactive destination inactiveTimoutBeforeGC 5000 inactivity period (in ms) before destination is considered inactive usePrefetchExtension true the prefetch extension is used when a message is delivered but not acked, such that the broker can dispatch another message (e.g., prefetch == 0), the idea being that there will always be prefetch num messages pending. It also allows a transaction batch to exceed the prefetch value. slowConsumerStrategy null sets the strategy for handling slow consumers. see abortSlowConsumerStrategy ... Queue only property default description useConsumerPriority true use the priority of a consumer when dispatching messages from a Queue strictOrderDispatch false if true queue will not round robin consumers, but it'll use a single one until its prefetch buffer is full optimizedDispatch false don't use a separate thread for dispatching from a Queue lazyDispatch false only page in from store the number of messages that can be dispatched at time consumersBeforeDispatchStarts 0 when the first consumer connects, wait for specified number of consumers before message dispatching starts timeBeforeDispatchStarts 0 when the first consumer connects, wait for specified time (in ms) before message dispatching starts queuePrefetch n/a sets the prefetch for consumers that are using the default value expireMessagesPeriod 30000 the period (in ms) of checks for message expiry on queued messages, value of 0 disables usePrefetchExtension true the prefetch extension is used when a message is delivered but not acked, such that the broker can dispatch another message, the idea being that there will always be prefetch num messages pending. It also allows a transaction batch to exceed the prefetch value. persistJMSRedelivered false (v 5.10) if true, before a persistent message is dispatched by the broker for the first time, the message is rewritten to reflect the possible delivery. This ensures the message JMSRedelivered header is a reliable indication of possible duplicate delivery. ... View Online · Like · View Changes Stop watching space · Manage Notifications This message was sent by Atlassian Confluence 5.0.3, Team Collaboration Software