afreetgo

Preliminary judgment is that it may be due to the blockage of storm threads that lead to unsuccessful assignment. I am writing a separate test case to verify it.

[storm-siddhi-test.zip](https://github.com/siddhi-io/siddhi/files/3130504/storm-siddhi-test.zip) This test code can reproduce the problem, please modify FILEPATH in TestSpout, please help to see what caused it? How to solve it? Thank you very much.

Set breakpoints on line 48 of SiddhiBolt

Adding synchronized (inputHandler) can solve this problem.