hi everyone,
Sorry for the basic question... 

Because applications on multiple machines need to be able to grab jackrabbit 
stored content from the repository, I am using the SimpleDBPersistenceManager, 
with externalBLOBs set to false.  I realize that if I set externalBlobs to 
true, the blobs will be stored on the filesystem, but this makes the content 
"sticky", that is, accessible by only the machine that has it on the filesystem.

My question is:  Do I need to implement my own file caching for my application? 
 For example, if my application repeatedly retrieves a binary file from the 
jackrabbit repository, does jackrabbit cache the retrieved binary file on the 
filesystem for subsequent requests, or is each request cause the same blob to 
be read from the db?

No problem either way, I just need to know, since I have 20,000 users with each 
user having their own collection of images on a very high traffic site.

Thank you everyone for all your help.  It's been great.

Phillip






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