Add NoReplicasError exception

[LD250]

Pull Request check-list

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Description of change

Add NoReplicasError exception.

During redis failover server can send NOREPLICAS Not enough good replicas to write. response. Redis server does not accept redis write command in this case. See: https://github.com/redis/redis/blob/ec582cc7ad0706e252bc905822226e49f4c4d0e4/src/server.c#L4118

So it is safe to retry.

We would like to catch this exception and retry write command.

[github-actions[bot]]

This pull request is marked stale. It will be closed in 30 days if it is not updated.

[codecov-commenter]

Codecov Report

Merging #1502 (514b1c5) into master (a246f40) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1502   +/-   ##
=======================================
  Coverage   92.00%   92.00%           
=======================================
  Files         109      109           
  Lines       28068    28074    +6     
=======================================
+ Hits        25823    25829    +6     
  Misses       2245     2245           

Impacted Files	Coverage Δ
redis/connection.py	86.42% <ø> (ø)
redis/exceptions.py	98.55% <100.00%> (+0.04%)	:arrow_up:
tests/test_connection_pool.py	100.00% <100.00%> (ø)

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[github-actions[bot]]

This pull request is marked stale. It will be closed in 30 days if it is not updated.