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From vkulichenko <valentin.kuliche...@gmail.com>
Subject Re: Semaphore blocking on tryAcquire() while holding a cache-lock
Date Thu, 18 Feb 2016 20:02:48 GMT
Hi Mario,

Semaphores are stored in the dedicated internal cache, which is used for all
atomics and sync primitives. Parameters of this cache are set in
AtomicConfiguration (provided in
IgniteConfiguration.setAtomicConfiguration). By default it's a partitioned
cache with zero backups. If you didn't change this, you don't have any
backups which can be the reason of the issue. Can you try to configure 1 or
2 backups or switch to REPLICATED mode and check if it works this way?

-Val



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