DM-39186: Redo Redis connection configuration #755
Merged
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Since adding more connection retry configuration, we have been seeing periodic "Connection closed by server" errors in all environments. One hypothesis is that setting socket_keepalive is keeping the connection open longer than the Redis server permits, and it's changing the error in a way that's causing this problem. Try dropping that configuration.
Stop setting an explicit list of exceptions on which to retry, since the default seems to be fine.