[infinispan-dev] LevelDB & expirationQueue

Hi, I found a couple of issue with the expirationQueue in leveldb. AFAIK, this queue has the goal to avoid 2 writes to leveldb per infinispan write. correct me if I'm wrong. Also, it is drain when the eviction thread is trigger (every minute by default). #1 the queue is is only drained when the eviction thread is triggered. It is difficult to configure a queue-size + wake-up interval for all the possible workloads. A possible solution is to use an internal thread in LevelDBStore to drain this queue. #2 It is possible to write to leveldb asynchronously. So why can't we remove the queue? Do we have some performance numbers that shows a degradation without the queue? Thoughts? Cheers, Pedro