Redis Object Cache: Filesystem: Not writeable fault

(@tillkruess)

2 years, 3 months ago

That means your /wp-content/ folder is not writeable to the plugin.

Thread Starter

(@pss1152)

2 years, 3 months ago

Dear Till,

I do not understand the problem.
The wp-content directory is owned by http, its group is user.
All folders are 755 and all files are 644.
All plugins work flawlessly and are updated.
I continue to ask for your help.

Best regards,

Csaba Pócsai

Thread Starter

(@pss1152)

2 years, 3 months ago

Status: Connected
Client: Predis (v2.0.3)
Drop-in: Valid
Disabled: No
Ping: PONG
Errors: []
PhpRedis: Not loaded
Relay: Not loaded
Predis: 2.0.3
Credis: Not loaded
PHP Version: 8.0.23
Plugin Version: 2.2.2
Redis Version: 7.0.7
Multisite: No
Metrics: Enabled
Metrics recorded: 27
Filesystem: Object cache file doesn’t exist.
Global Prefix: "pbbqa_"
Blog Prefix: "pbbqa_"
WP_REDIS_HOST: "172.18.0.1"
WP_REDIS_PORT: 46379
WP_REDIS_DATABASE: 1
WP_REDIS_PREFIX: "angiszi.hu"
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"
]
Unflushable Groups: []
Groups Types: {
"blog-details": "global",
"blog-id-cache": "global",
"blog-lookup": "global",
"global-posts": "global",
"networks": "global",
"rss": "global",
"sites": "global",
"site-details": "global",
"site-lookup": "global",
"site-options": "global",
"site-transient": "global",
"users": "global",
"useremail": "global",
"userlogins": "global",
"usermeta": "global",
"user_meta": "global",
"userslugs": "global",
"redis-cache": "global",
"counts": "ignored",
"plugins": "ignored",
"themes": "ignored",
"blog_meta": "global"
}
Drop-ins: [
"advanced-cache.php v by ",
"Redis Object Cache Drop-In v2.2.2 by Till Krüss"
]

This is the complete diagnostics.

Plugin Author

(@tillkruess)

Filesystem: Object cache file doesn’t exist.

If your cache works as expected and you don’t have trouble enabling/disabling the cache then you can ignore the errors.

It seems your filesystem permissions are fairly strict and that’s why the plugin is complaining.

Thread Starter

(@pss1152)

Something is not working correctly with your plugin.
I made a new test environment.
No other plugins are running here.
The permissions of wp-content are 777, both for directories and files.
Now I installed phpredis, it is running.
The error persists.
What else should I do?
I did not like it when something does not work correctly.
So the pro version makes no sense either.
I attach the diagnostics.

Status: Connected
Client: PhpRedis (v5.3.5RC1)
Drop-in: Valid
Disabled: No
Ping: 1
Errors: []
PhpRedis: 5.3.5RC1
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 8.0.23
Plugin Version: 2.2.2
Redis Version: 7.0.7
Multisite: No
Metrics: Enabled
Metrics recorded: 222
Filesystem: Object cache file doesn’t exist.
Global Prefix: "wp_"
Blog Prefix: "wp_"
WP_REDIS_HOST: "172.18.0.1"
WP_REDIS_PORT: 46379
WP_REDIS_DATABASE: 9
WP_REDIS_PREFIX: "sega73.hu"
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"
]
Unflushable Groups: []
Groups Types: {
    "blog-details": "global",
    "blog-id-cache": "global",
    "blog-lookup": "global",
    "global-posts": "global",
    "networks": "global",
    "rss": "global",
    "sites": "global",
    "site-details": "global",
    "site-lookup": "global",
    "site-options": "global",
    "site-transient": "global",
    "users": "global",
    "useremail": "global",
    "userlogins": "global",
    "usermeta": "global",
    "user_meta": "global",
    "userslugs": "global",
    "redis-cache": "global",
    "counts": "ignored",
    "plugins": "ignored",
    "themes": "ignored",
    "blog_meta": "global"
}
Drop-ins: [
    "Redis Object Cache Drop-In v2.2.2 by Till Krüss"
]

Plugin Author

(@tillkruess)

I dug into this. The issue is that: WP_REDIS_PLUGIN_PATH . '/includes/object-cache.php' doesn’t exist according to your PHP process.

Thread Starter

(@pss1152)

Okay.
How can I fix this?

Plugin Author

(@tillkruess)

Are you using a standard WordPress setup, or is it customized?

Where did you install the redis-cache plugin directory?

Thread Starter

(@pss1152)

Standard WP setup.

/sega73.hu/wp-content/plugins/redis-cache

From /sega73.hu/wp-content/plugins/redis-cache/includes copy object-cache.php to /sega73.hu/wp-content/

Wp-config.php is define:

//Redis
define( ‘WP_REDIS_HOST’, ‘172.18.0.1’ );
define( ‘WP_REDIS_PORT’, 46379 );
define( ‘WP_REDIS_DATABASE’, 9 );
define( ‘WP_REDIS_PREFIX’, ‘sega73.hu’ );
define( ‘WP_CACHE’, true );

Plugin Author

(@tillkruess)

In that case you’ll have to debug this yourself, or get a developer to do it for you. I doubt it’s a plugin issue, since it’s working for everyone one else. It’s likely your filesystem permissions.

Thread Starter

(@pss1152)

On the test website I have given 777 permissions, but it doesn’t work there either.
This must be a plugin problem.

Plugin Author

(@tillkruess)

In that case you’ll have to debug the code yourself, or get a developer to do it for you.

Thread Starter

(@pss1152)

In this case, it can be said that:

the plugin is not working properly
it is trying to access something it has nothing to do with
could there be a “backdoor” in it?

Plugin Author

(@tillkruess)

OMG. There is no backdoor and it’s not accessing anything outside its own plugin directory.

The plugin is working fine. See below.

Status: Connected
Client: PhpRedis (v5.3.5RC1)
Drop-in: Valid

Thread Starter

(@pss1152)