Redis Connections

[George Chilumbu]

I have a Redis cluster (version 3.2.0) with 3 masters and 3 slaves. I checked my average connections per second, and here is what i got:

Redis-1-1

uptime_in_seconds:3354431

total_connections_received:217735422

Findings: Redis-1-1 is averaging about 64 connections per second

Redis-1-2

uptime_in_seconds:3444551

total_connections_received:319811076

Findings: Redis-1-2 is averaging about 92 connections per second

Redis-2-1

uptime_in_seconds:3442432

total_connections_received:78116430

Findings: Redis-2-1 is avaraging about 22 connections per second

Redis-2-2

uptime_in_seconds:4049111

total_connections_received:786943733

FIndings: Redis-2-2 is averaging about 194 connections per second

Redis-3-1 

uptime_in_seconds:3436857

total_connections_received=247145780

Findings: Redis 3-1 is averaging about 71 connections per second

Redis-3-2

uptime_in_seconds:326421

total_connections_received:508049

Findings: Redis-3-2 averaging about 1 connection per second

Except for Redis-3-2, are the average connections per second acceptable? We have multiple applications connecting to our redis cluster. I feel like some of the numbers, like 

194 and 92 connections per second are a bit much.

So my questions is, what is the more acceptable number for average connections per second? Are my numbers abnormal or just in the acceptable range?

Below is my redis config:

activerehashing yes

aof-load-truncated yes

aof-rewrite-incremental-fsync yes

appendfilename "appendonly.aof"

appendfsync everysec

appendonly no

auto-aof-rewrite-min-size 64mb

auto-aof-rewrite-percentage 100

bind 0.0.0.0

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit pubsub 32mb 8mb 60

client-output-buffer-limit slave 512mb 512mb 0

cluster-config-file "node.conf"

cluster-enabled yes

cluster-node-timeout 15000

cluster-require-full-coverage no

cluster-slave-validity-factor 0

daemonize yes

databases 16

dbfilename "dump.rdb"

dir "/srv/redis"

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

hll-sparse-max-bytes 3000

hz 10

latency-monitor-threshold 0

list-max-ziplist-entries 512

list-max-ziplist-value 64

logfile /var/log/redis/redis-server.log

loglevel notice

lua-time-limit 5000

maxclients 1024000

maxmemory 52gb

maxmemory-policy allkeys-lru

min-slaves-max-lag 10

no-appendfsync-on-rewrite yes

notify-keyspace-events ""

pidfile /var/run/redis/redis-server.pid

port 6379

rdbchecksum yes

rdbcompression yes

repl-backlog-size 64mb

repl-backlog-ttl 0

repl-disable-tcp-nodelay no

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-ping-slave-period 10

repl-timeout 360

save 3600 100000

set-max-intset-entries 512

slave-priority 100

slave-read-only yes

slave-serve-stale-data yes

slowlog-log-slower-than 1000000

slowlog-max-len 128

stop-writes-on-bgsave-error no

tcp-backlog 65535

tcp-keepalive 60

timeout 0

zset-max-ziplist-entries 128

zset-max-ziplist-value 64