Status: Not connected – “Connection Refused”

Hi,

I have Nginx running two WordPress sites on a single server. I have an elasticache redis cluster set up on AWS. I’m able to successfully connect the first site to it, and its been working great. The second site keeps failing to connect. I changed the database parameter to 1 (the other site is 0), without luck. Both sites are on the same hardware and reach out to RDS for the WordPress database as well as cdn etc. I can’t seem to figure out why I can’t connect redis to the second sites redis object cache plugin. Your assistance will be greatly appreciated.

First Website:

Overview

Status:	 Connected
Drop-in:	 Valid
Filesystem:	 Writeable
Connection

Client:	PhpRedis (v5.3.6)
Host:	<redacted_for_privacy>.usw2.cache.amazonaws.com
Port:	6379
Database:	0
Connection Timeout:	1s
Read Timeout:	1s
Retry Interval:	0ms
Redis Version:	6.2.5

Diagnostics:

Status: Connected
Client: PhpRedis (v5.3.6)
Drop-in: Valid
Disabled: No
Ping: 1
Errors: []
PhpRedis: 5.3.6
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 8.0.15
Plugin Version: 2.0.23
Redis Version: 6.2.5
Multisite: No
Metrics: Enabled
Metrics recorded: 896
Filesystem: Working
Global Prefix: "wp_"
Blog Prefix: "wp_"
WP_REDIS_HOST: "<redacted_for_privacy>.usw2.cache.amazonaws.com"
WP_REDIS_PORT: 6379
WP_REDIS_DATABASE: 0
WP_REDIS_TIMEOUT: 1
WP_REDIS_READ_TIMEOUT: 1
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "wordfence",
    "wordfence-ls"
]
Unflushable Groups: []
Drop-ins: [
    "advanced-cache.php v by ",
    "Redis Object Cache Drop-In v2.0.23 by Till Krüss"
]

Second Website:

Overview

Status:	 Not connected
Drop-in:	 Valid
Filesystem:	 Writeable

Diagnostics:

Status: Not connected
Client: PhpRedis (v5.3.6)
Drop-in: Valid
Disabled: No
Ping: 
Errors: [
    "Connection refused"
]
PhpRedis: 5.3.6
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 8.0.15
Plugin Version: 2.0.23
Redis Version: Unknown
Multisite: No
Metrics: Disabled
Metrics recorded: null
Filesystem: Working
Global Prefix: "wp_"
Blog Prefix: "wp_"
WP_REDIS_HOST: "<redacted_for_privacy>.usw2.cache.amazonaws.com"
WP_REDIS_PORT: 6379
WP_REDIS_DATABASE: 1
WP_REDIS_TIMEOUT: 1
WP_REDIS_READ_TIMEOUT: 1
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta",
    "wordfence",
    "wordfence-ls"
]
Unflushable Groups: []
Drop-ins: [
    "advanced-cache.php v by ",
    "Redis Object Cache Drop-In v2.0.23 by Till Krüss"
]

It makes no sense to me because the environment is the same down to the WordPress site version, plugins, configurations, nginx server conf, etc. The first site works 100% and the other doesn’t?

• This topic was modified 4 years, 1 month ago by inevitablezn.
• This topic was modified 4 years, 1 month ago by inevitablezn.
• This topic was modified 4 years, 1 month ago by inevitablezn.