Hi,
It is good to post first here because we other users can learn about your findings and most of us don't read JIRA tickets. It is also possible that other users or developers who also read this list can either solve some problems without tickets or give more information so you can make better tickets. Tickets will still be needed later because they put harder pressure for the developers. If you don't get any useful answers within a few days go and create tickets. Developers are friendly but busy so that can happen.
-Jukka Rahkonen-
Tom S wrote:
I have been testing the new Memory cache functionality, and have a few comments (and questions). For comments, is it better to simply post here, or should I open JIRA tickets? In any case, the first set of comments are
1) In the 'Caching Defaults' admin screen, ideally move the general cache setup parameters out of the 'Default Layer' section - they are not layer specific, and having them there forces people to activate default settings, even if they do not wish new layers to participate in caching.
2) For the 'Cache Eviction Policy' - it is not accepting the LRU and LFU options from the list. If these will not be used for memory cache, perhaps remove from the drop down list.
3) For the cache statistics section
a) Having both a Hit and Miss percentage is not really critical (miss = 100 - hit)
b) For Cache Memory Occupation - it would also be nice to have the maximum observed (in this session) level. This can be used to tell if you need to allocate more memory for the cache.
c) I have not done extensive checking on this, but the actual memory consumption on my Tomcat instances I am using for testing (which are otherwise identical to a V2.7 install) are using considerably more memory (5GB vs 2GB). This might be due to the build (debug stuff), but the cache numbers indicated here (15MB) are only a fraction of the delta. Either the cache is using much more than shown, or there is some other factor.
The immediate question I have is if there is some plan to support layer specific selection of the caching store (none, Disk, Memory, ...)? If not, will the memory store 'Persistence enabled' mode only be global, or can it be selected on a per-layer basis (there are no setting for this on individual layers now)?
Thanks
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