Hi basically for KahaDB what is the exact meaning and implication of changing indexCacheSize?
This defaults to 10,000 and I see our performance issues go away when it is increased to 50,000. Is this because there are active consumers and our messages can be acknowledged without having to write them out to the disc? The larger cache allows the messages to better fit in memory. How does this affect reliability if the system lost power, does the redo log still contain the information on these messages, even though they are not on disc? We have 10 queues with 5-40 consumers on each and one virtual topic. We had an issue where the virtual topic would eventually grow over a certain amount and for whatever reason cause the rest of the queues to start grinding to a crawl. Thanks in advance, James -- View this message in context: http://activemq.2283324.n4.nabble.com/KahaDB-indexCacheSize-question-tp4654198.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
