Blog - page 64
Stay up to date with the latest articles and news from Infinispan.
November 22, 2011 Tags: locking configuration demo
Infinispan 5.1.0.BETA5 has just been the released with a few interesting additions and important fixes: Locks acquired within a transaction are now reordered in order to avoid deadlocks. There’s no new configuration required to take advantage of this feature. More i...
November 11, 2011 Tags: transactions locking
Pessimistic transactions were added in 5.1 and are the "rebranding" of eager transactions from previous Infinispan releases. But besides the re-branding, the code also brought some worth mentioning performance optimisation: a single RPC happens for acquiring lock on a key...
November 11, 2011 Tags: transactions locking deadlock detection
Here’s the problem: first transaction (T1) writes to key a and b in this order. Second transaction (T2) writes to key b and a - again order is relevant. Now with some "right timing" T1 manages to acquire lock on a and T2 acquires lock on b. And then they wait one for th...
November 09, 2011 Tags: radargun transactions locking deadlock detection
The single lock owner is a highly requested Infinispan improvement. The basic idea behind it is that, when writing to a key, locks are no longer acquired on all the nodes that own that key, but only on a single designated node (named "main owner"). How does it help me? Sh...
The latest beta in the Infinispan 5.1 "Brahma" series is out. So, what’s in Infinispan 5.1.0.BETA4? Here are the highlights: A hugely important lock acquisition improvement has been implemented that results in locks being acquired in only a single node in the cluste...
October 27, 2011 Tags: atomic maps hotrod
I’m very proud to announce yet another beta release in the 5.1 'Brahma' series. This time is the turn of Infinispan 5.1.0.BETA3 which apart from containing many small fixes, it comes with two major improvements: Fine-grained Atomic Maps Atomic Maps are special const...
October 19, 2011 Tags: asymmetric clusters
The latest beta of the 5.1 'Brahma' series, 5.1.0.BETA2, is out now and thanks to Dan Berindei, it comes with support for asymmetric clusters which has been highly demanded. Before asymmetric clusters were supported, it was required that all Infinispan caches that client co...
October 18, 2011 Tags: devoxx
I won’t be able to make it to Devoxx this year, but worry not, the University talk and hands-on deep-dive on Infinispan will still go on. Pete and Mircea will be joined by Sanne Grinovero - maintainer of Infinispan’s querying capabilities, Lucene and Hibernate ha...
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