[shards on different ways]

by sharding I mean partionioning of database tables

[card scanner]

if you can connect your scanner via a port to your server

you can use "Direct IO FUNCTIONS" in php.

 

just take a look here:

http://de3.php.net/manual/en/ref.dio.php

[Page Views]

a good solution would be to have a log table for all

video views. therefore you are free to analyze this

data later on like views per hour etc.

 

on a next step you build a cronjob which counts

all video views and writes the sum into one table

field (update col countviews in video table).

[shards on different ways]

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