The main KahaDB message store can be split by using different values for directory and indexDirectory in the <kahaDB> element. This is very useful to put the index file on fast media (SSD, RAM disk...) while keeping the log files on slower but larger media (spinning disks, NAS...). For reference, this is documented at http://activemq.apache.org/kahadb.html.
Unfortunately, we cannot split the temporary message store the same way. We can change its location via the tmpDataDirectory attribute but we cannot split index and log files.
Could you please add an option to split the temporary message store in the same spirit as what has been done for the main message store? Thanks!