Canvas redis (data/cache) configuration with two redis instances - please advise

[Lennart Nordgreen]

Hi there Canvas useres.

I'm trying to setup canvas to use redis (v.2.8.19) for data and cache store. The data part works but I can't seem to get Canvas to use the cache instance or get Canvas to cache at all??

So first of the Redis part.

I have two instances running on port 6379 and port 6380 respectively.
One (cache) with "maxmemory-policy allkeys-lru" set.

These are my Canvas settings.

redis.yml

production:
  servers:
    - redis://127.0.0.1:6380
  database: 0

cache_store-yml

production:
  cache_store: redis_store
  servers:
    - 127.0.0.1
  database: 0


Running redis-cli monitor (for the cache instance) it just says: 
OK

There is no activity

Running redis-cli -p 6380 monitor (data instance) show a lot of activity. 

Now the questions are. 

1. Is the cache_store.yml settings correct?
2. When dose Canvas use redis for caching? What kind of data is cached?

Or is it the redis settings which are wrong? (kind of default settings) 

daemonize yes
pidfile /var/run/redis/redis-cache.pid
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 0
loglevel notice
logfile "/var/log/redis/redis-cache.log" 
databases 2
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump-cache.rdb
dir /var/redis/data/
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
maxmemory-policy allkeys-lru 
appendonly no
appendfilename "appendonly.aof" 
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events "" 
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-entries 512
list-max-ziplist-value 64
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

Please advise. 


Thanks in advance. 

Br,
Lennart Nordgeeen
University of Bergen

[Lennart Nordgreen]

Solved it by using this syntax in cache_store.yml

production:
  cache_store: redis_store
  servers:
    - redis://127.0.0.1:6379
  database: 0