1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
# Redis demos
## Using consumer groups
The files primes.pl, common.pl and prime-node.pl provide a demo for
using consumer groups to organize a dynamic cluster. To run this demo:
- Edit common.pl to update the location of the Redis server
- Run this to start the consumer.
swipl primes.pl
?- r_primes(10).
- Now start a compute node using
swipl prime-node.pl alice
Now you should see messages in the console running `swipl primes.pl`
telling which node answered whether some number is prime and how much
time elapsed to produced this answer. The argument `10` is the number of
calls per second.
Now you can start playing around with the cluster. In particular, add a
new compute node:
swipl prime-node.pl bob
You will see that you get answers from both nodes. You can both more
compute and client nodes, kill compute and client nodes, etc. You can
also shut down the redis server and bring it up again. You'll see some
messages as configured by the debug/3 calls in common.pl. After a little
while your cluster should work fine again.
|
