Which Redis exceptions to retry on

[swela-MSFT]

As per StackExchange.Redis code, following exceptions seem like they need to be retried (connection error, sever error).

RedisServerException: Indicates an exception raised by a redis server

RedisConnectionException
Indicates a connection fault when communicating with redis

RedisException
Indicates an issue communicating with redis_

Is it safe to retry on these errors? Are they any other exceptions that need to be retried on?

Redis Best practices:
https://gist.github.com/JonCole/925630df72be1351b21440625ff2671f#when-is-it-safe-to-retry
puts onus on users of Redis for retries. But is silent which exceptions can be safely retried.

Thanks,

[NickCraver]

Where you retry depends on what you're trying to do, see my comments here on why it's so specific to the intent and not the exception:
#528 (comment)

[swela-MSFT]

OK thanks for the link.
Follow up question:
If I decide to retry for errors in Redis operation:

1. Should I create a new ConnectionMultiplexer and retry
2. Or using existing ConnectionMultiplexer object for retries

In case of errors I perform following two operations:

1. GetDatabase again
2. StringSet\StringGet\ other Redis op that needs to be retried.

[NickCraver]

It depends on the error, if it's a connection error and you want to synchronously wait then you may create a new one. But doing so for a large number of commands would be very expensive.