aarmam opened a new issue, #10409:
URL: https://github.com/apache/ignite/issues/10409
Hi,
I have a question about race condition on closing semaphores. As I
understand semaphores are not removed automatically and must therfore be closed
manually. Lets say two threads want to change some object and try to aquire
semaphore for it:
```java
IgniteSemaphore semaphore = ignite.semaphore(objectId, 1, true, true);
if (semaphore.tryAcquire(5, TimeUnit.SECONDS)) {
try {
changeObject(objectId);
} finally {
semaphore.release(); // First thread releases semaphore
// Second thread aquires semaphore
semaphore.close(); // First thread closes semaphore
}
}
```
1) What happens if first thread tries to close semaphore while second thread
has aquired it?
2) But my main quiestion is - can I close the semaphote without calling
release before it? So second thread cannot aquire it.
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