hello
i have a big problem dealing with shards.
i would be pleased to get your ideas and practical
solutions to my problem.
imagine following scenario:
i have 5 mysql shards, sharded by primary key.
shard #1 (id 1-1,000,000)
shard #2 (id 1,000,001-2,000,000)
shard #3 (id 2,000,001-3,000,000)
shard #4 (id 3,000,001-4,000,000)
shard #5 (id 4,000,001-5,000,000)
that way it is pretty easy to build a application to
connect to the right shard if i have the id.
now the problem:
what do you do, if you consider to get your entries if
you don't use primary key id. for example you want to
get the entries by another key (date for example).
do you have any ways to build appropriate keys to get
your data on different ways out of shards ?
please help me..
i hope someone already did something like that.
what do you do if you sharded your data on different
physical machines and want to get the data our on
different ways.
thank you very much
dan