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Infinispan @Devoxx

November 25, 2011 Mircea Markus By Mircea Markus

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...

event
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More on transaction performance: use1PcForAutoCommitTransactions

November 23, 2011 Mircea Markus By Mircea Markus

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 ...

transactionsperformance
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Infinispan 5.1.0.BETA5 is out!

November 22, 2011 Galder Zamarreño By Galder Zamarreño

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...

lockingconfigurationdemo
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Some worth mentioning improvements for pessimistic transactions

November 11, 2011 Mircea Markus By Mircea Markus

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...

transactionslocking
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Fewer deadlocks, higher throughput

November 11, 2011 Mircea Markus By Mircea Markus

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...

transactionslockingdeadlock detection
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Single lock owner: an important step forward

November 09, 2011 Mircea Markus By Mircea Markus

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...

radarguntransactionslockingdeadlock detection
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More locking improvements in Infinispan 5.1.0.BETA4

November 09, 2011 Galder Zamarreño By Galder Zamarreño

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...

lockingAPI
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Infinispan 5.1.0.BETA3 is out with Atomic Map and Hot Rod improvements

October 27, 2011 Galder Zamarreño By Galder Zamarreño

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...

atomic mapshotrod
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