Replace EmittedBatchCounter and UpdateCounter with ConcurrentAwaitableCounter#5592

Merged

gianm merged 4 commits intoapache:masterfrom

metamx:concurrent-awaitable-counter-2

Apr 13, 2018

Commits on Apr 7, 2018

Replace EmittedBatchCounter and UpdateCounter with (both not safe for concurrent increments/updates) with ConcurrentAwaitableCounter (safe for concurrent increments)
leventov
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Commits on Apr 8, 2018

Fixes
leventov
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Fix EmitterTest
leventov
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Commits on Apr 10, 2018

Added Javadoc and make awaitCount() to throw exceptions on wrong count instead of masking errors
leventov
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