Hey all, 

We experienced an issue when trying to establish a semaphore after a single
instanced client node goes down hard (kill -9). Which afterwards we cannot
acquire a permit on the existing semaphore. However, if the client is
redundant, the permit is transferred successfully. 

I created a modified test of the SemaphoreFailoverSafeReleasePermitsTest,
which will close the initial semephore ignite instance then try and acquire
a permit and fail. 

SemaphoreFailoverNoWaitingAcquirerTest.java
<http://apache-ignite-users.70518.x6.nabble.com/file/t1401/SemaphoreFailoverNoWaitingAcquirerTest.java>
  

I created a jira (https://issues.apache.org/jira/browse/IGNITE-7090) to
track as well, may try and dig further but wanted to get it out to the
group. 

Tim



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