Blog - page 63
Stay up to date with the latest articles and news from Infinispan.
December 06, 2011 Tags: event
Remember that on the 15th of December, I’ll be speaking at the Alpes JUG in Grenoble about Infinispan. This is a great opportunity for anyone interested in topics such as data caching and data grids to come and learn about Infinispan and its ecosystem, including Hiberna...
November 25, 2011 Tags: event
Compared with the previous editions, this year’s Devoxx was not that different: well organised, packed with interesting presentations and full rooms. And plenty of Belgian beer :) Pete Muir, Sanne Grinovero and myself were also given the chance to speak. And we did t...
November 23, 2011 Tags: transactions performance
What’s use1PcForAutoCommitTransactions all about? Don’t be scared the name, use1PcForAutoCommitTransactions is a new feature (5.1.CR1) that does quite a cool thing: increases your transactions’s performance. Let me explain. Before Infinispan 5.1 you could ...
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...
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