Terracotta Discussion Forums (LEGACY READ-ONLY ARCHIVE)

I'm using terracotta in a clustered environment.

I have 2 distributed caches, call them cache1 and cache2

Say the the initial state of the caches are as follows:

cache1: { key="hello", value=1 }
cache2: { key="hello", value="A" }

What the best way to ensure that changes to the 2 caches are atomic.

So if something changes the state of the caches to this:

cache1.put("hello", 2)
cache2.put("hello", "B" }

i don't want this to happen when getting the values from the cache:
cache1.get("hello") == 2
cache2.get("hello") == "A"

I'm ok with getting the initial state after the cache has been changed (i don't need strong consistency) but having one new value and the other old is unacceptable to me.

Did you go through these links?

http://ehcache.org/documentation/2.4/terracotta/consistency-options

http://ehcache.org/documentation/apis/explicitlocking

They should answer your questions? No?

I think local transactionalMode is what I need but do I need to have consistency=strong as well?

Ok, looks like consistency must be "strong" when using local transactions.