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These changes have been implemented in the scope of Redis DB solution integration to the cloud infrastructure for a products of one of the world leading providers of Information and Communication Technologies.
Description:
a. Retry the query that is sent to all connected pools (Redis instances);
b. Add
refresh slots map and retry query
logic for such Redis errorresponses as <<"ASK ", _/binary>>, <<"TRYAGAIN ", _/binary>> and
<<"CLUSTERDOWN ", _/binary>>;
c. Return an error to application in case of Redis response errors
like as: "ERR unknown command 'foobar'” or "WRONGTYPE Operation
against a key holding the wrong kind of value", "BUSY Redis is
busy running a script", "NOAUTH Authentication required." and so on ;
d. Add
refresh slots map and retry query
logic in case of POSIXerror that can related to temporary TCP issues.