Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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None
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Description
Currently `ConsumerNetworkClient.send()` needs to acquire global lock of `ConumserNetworkClient` in order to enqueue requests. If another thread has called `ConsumerNetworkClient.poll(..)`, that thread may be holding the lock while blocked on `nioSelector.select(ms)`. This causes problem because the user thread which calls `ConsumerNetworkClient.send()` will also block waiting for that `nioSelector.select(ms)` to finish.
One way to address this problem is to use `synchronized (unsent)` to protect access to `ConsumeNetworkClient.unsent` instead of protecting it using a global lock. So that user thread should be able to enqueue requests immediately while another thread is blocked on `nioSelector.select(ms)`.
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