[GitHub] [pulsar] tuteng opened a new pull request #5706: Fix consumer of python queue size is zero

[GitBox <gi...@apache.org>]

tuteng opened a new pull request #5706: Fix consumer of python queue size is zero
URL: https://github.com/apache/pulsar/pull/5706
 
 
   Fixes https://github.com/apache/pulsar/issues/5634
   
   
   Master Issue: https://github.com/apache/pulsar/issues/5634
   
   ### Motivation
   
   In java clients, when we call the `receive`, we will block it until a message arrives. in python clients, when we call the `receive` function, we add a delay parameter of 100ms. when the queue size is 0, the `receive` will have a strict check on the queue size, causing the following exception to be thrown
   
   ```
   Traceback (most recent call last):
     File "tst.py", line 10, in <module>
       msg = consumer.receive()
     File "/python3.7/site-packages/pulsar/__init__.py", line 930, in receive
       msg = self._consumer.receive()
   Exception: Pulsar error: InvalidConfiguration
   ```
   ### Modifications
   
   * Removing timeout parameter in synchronous `receive`
   * Add test for queue size is 0
   
   ### Verifying this change
   
   Add Test
   

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