indexKeySize is the maximum size of a key used in a persistent hashmap used for indexes. Don't change this :) indexPageSize is the size of the page in the persistent hashmap - multiple pages are stored in a has bin. 4096 is the optimum size (or multiples of that) indexBinSize is the initial number of bins - usually the larger the better - to avoid a rehash.
Having said all that - download 5.3.2 - http://activemq.apache.org/activemq-532-release.html and use KahaDB - its faster, recovery is quicker and there are more options with recoverying corrupted log files - see http://activemq.apache.org/kahadb.html cheers, Rob On 8 Jun 2010, at 14:12, radha_mit wrote: > > > We are experimenting with AMQ persistent storage using activeMQ5.3.0 > we have few doubts regarding the options with the AMQ persistence store > > maxFileLength is the max size of each data log. > > but we are not clear about indexBinSize, indexKeySize, indexPageSize. > > > what is a bin in this context. > Please explain and clear our doubts > > Thanks, > D.Radhakrishnan > -- > View this message in context: > http://old.nabble.com/AMQ-Persistence-Store-explanation-tp28817690p28817690.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. >