Hi, I'm trying to impl a use case where a non-persistent msg producer can send msgs until no more disk space. We want to flow the msgs to disk with a limit - and to detect when the space is full (instead of being throttled).
The attempt is to set tempUsage limit with sendFailIfNoSpace on the systemUsage. The target queue is myqueue. <destinationPolicy> <policyMap> <policyEntries> <policyEntry topic=">" producerFlowControl="true" memoryLimit="1mb"> <pendingSubscriberPolicy> <vmCursor /> </pendingSubscriberPolicy> </policyEntry> <policyEntry queue=">" producerFlowControl="true" memoryLimit="1mb"> </policyEntry> <policyEntry queue="myqueue" producerFlowControl="true" memoryLimit="1mb"> <pendingQueuePolicy> <fileQueueCursor/> </pendingQueuePolicy> </policyEntry> </policyEntries> </policyMap> </destinationPolicy> <systemUsage> <systemUsage sendFailIfNoSpace="true" > <memoryUsage> <memoryUsage limit="20 mb"/> </memoryUsage> <storeUsa <storeUsage limit="1 gb"/> </storeUsage> <tempUsage> <tempUsage limit="33 mb"/> </tempUsage> </systemUsage> </systemUsage> But the outcome was not exact. 1 - fileQueueCursor, flow control on, producer jms.useAsyncSend=false The producer stopped after sending about 2600 msgs. When a consumer was connected, no msgs were received, even though the queue has about 700 msgs. 2 - fileQueueCursor, flow control off, producer jms.useAsyncSend=false Same as above - the flow control did not affect the outcome. 3 - vmQueueCursor, flow control on Producer received onException call back after 1mb memory was exhausted. No msg flowed to disk. Producer can continue to send w/o error after a consumer had drained msgs from memory. 4 - vmQueueCursor, flow control off Producer continued to send - beyond 32mb tempUsage limit. Broker version 5.5.1 Java 1.6 64-bit linux system Any suggestions on how to utilize all disk space but with notification when space is near depletion? Thanks
