Since update to the latest version Drop-in: Missing

Can you please post your diagnostics?

What happens when you click the “Enable Object Cache” button?

When you click on the “Enable Object Cache” button nothing happens. I disable all other plugins etc and still not working.

Where do i get the diagnostics? because on the diagonostic tab i only see this:

Status: Disabled
Client:
Drop-in: Invalid
Disabled: No
Redis Extension: 5.3.1
Predis Client: Not found
PHP Version: 7.3.19-1+0~20200612.60+debian8~1.gbp6c8fe1
Redis Version: Unknown
Multisite: Yes
WP_CACHE_KEY_SALT: “24ora.com”

Please try deleting the wp-content/object-cache.php file by hand and then press “Enable Object Cache”, again?

The file does not exist. I uninstall the plugin and install it back but still now file “p-content/object-cache.php”

Can you please post the full diagnostics from the plugin’s settings?

Same thing happens to me.

Clicked on enable nothing happens.
Won’t enable.

Status: Disabled
Client:
Drop-in: Invalid
Disabled: No
Redis Extension: 5.2.1
Predis Client: Not found
PHP Version: 7.4.8
Redis Version: Unknown
Multisite: Yes
WP_CACHE_KEY_SALT: “nisse”
Drop-ins:
– sunrise.php v by

Operating System
Linux
Server
Apache/2.4.43 (Ubuntu)
Memory usage
16.03M
MYSQL Version
5.7.30-0ubuntu0.16.04.1
SQL Mode
NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
PHP Version
7.4.8
PHP Allow URL fopen
On
PHP Memory Limit
512M
PHP Max Upload Size
68M
PHP Max Post Size
68M
PHP Max Script Execute Time
6000
PHP Exif support
Yes ( V7.4.)
PHP IPTC support
Yes
PHP XML support
Yes
Site URL
https://nisse.serpcom.com
Home URL
https://nisse.serpcom.com
WordPress Version
5.4.2
WordPress DB Version
47018
Multisite
Yes
Active Theme
NISSE Divi CHILD THEME 1.0.0
Site Title
Nisse Designs Login Page
Site Language
en-US
Front Page Displays
page [ID = 1186]
Search Engine Visibility
1
Permalink Setting
/blog/%year%/%monthnum%/%day%/%postname%/

Active Plugins

All In One SEO Pack Pro
3.6.2
AMP
1.5.5
Bloom
1.3.10
Brute Force Login Protection
1.5.3
Cloudflare
3.5.1
Gravity Forms
2.4.19
Gravity Forms Divi Styling Add-On
1.2.2
Gravity Forms Event Tracking
2.3.10
Gravity Forms Zapier Add-on
3.3
Intagrate
1.9.2
Monarch Plugin
1.4.12
Redis Object Cache
2.0.3
Smush Pro
3.6.3
SSH SFTP Updater Support
0.8.2
The Events Calendar
5.1.4
The Events Calendar PRO
5.1.0
Titan Anti-spam & Security
7.1.4
WordPress MU Domain Mapping
0.5.5.1
WP-Optimize – Clean, Compress, Cache
3.1.2
WP Mail SMTP
2.2.1
WPMU DEV Dashboard
4.9.4

Inactive Plugins

Anti-Malware Security and Brute-Force Firewall
4.19.69
AutoBlog
4.1.1
Buttonizer – Smart Floating Action Button
2.1.8
Divi Bars
1.8.5
Gravity Forms PayPal Standard Add-On
3.3
GTranslate
2.8.55
Mammoth .docx converter
1.15.0
MINDBODY Login
1.2.5
MINDBODY Widget
1.1.20
NS Cloner – Site Copier
4.0.9
PopUp Pro
4.8.1
Press This
1.1.1
Press This Extended
1.1.0
Print, PDF & Email by PrintFriendly
3.15.0
Recent Posts Widget With Thumbnails
6.7.0
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4.8
Slider Revolution
6.2.2
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2.4.5
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3.3.0
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2.7.2
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5.4.0
WordPress Importer
0.7
Wp-Pepipost
3.0.4
WP Auto Republish
1.1.7
WP Job Manager
1.34.2
WP Responsive Table
1.2.5
XT Visitor Counter
1.4.1

Hi @serpcom,

are you seeing any error in your error log?

Could you try deleting the /wp-content/object-cache.php file by hand and then clicking “Enable Object Cache” again.

If that doesn’t work, try copying the /wp-content/plugins/redis-cache/includes/object-cache.php to /wp-content/object-cache.php by hand.

Let me know if any of that worked.

I think this is the related issue:
https://github.com/rhubarbgroup/redis-cache/blob/develop/includes/class-plugin.php#L744-L767

Ok,

Note, this is a multi site install

1. No errors in error logs
2. There was NO /wp-content/object-cache.php file
3. I copied it from /wp-content/plugins/redis-cache/includes/object-cache.php to /wp-content/object-cache.php

4. That actually logged me out and got the message “you don’t have permissions to…”

5. So I went on to the server via ssh and reset all the permissions on the files.
6. Went back to WordPress and the plugin was DISABLED completely

7. I then network enabled it

8. Went to settings and it was “disabled” so I enabled it and it worked.

The new Diagnostics pasted in below.

Problem is I can’t do this for all the site, we have hundreds sites over many wordpress networks over 17 servers. Once I saw the error I stopped updating the plugin over all our sites. Are you going to release an update to fix this soon???

Please let me know

Status: Connected
Client: PhpRedis (v5.2.1)
Drop-in: Valid
Disabled: No
Ping: 1
Errors: []
Redis Extension: 5.2.1
Predis Client: Not found
PHP Version: 7.4.8
Redis Version: 3.0.6
Multisite: Yes
Global Prefix: “”
Blog Prefix: 1
WP_REDIS_PREFIX: “nisse”
WP_CACHE_KEY_SALT: “nisse”
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”,
“blog_meta”,
“titan_network_options”
]
Ignored Groups: [
“counts”,
“plugins”,
“themes”,
“tribe-events-non-persistent”
]
Unflushable Groups: []
Drop-ins:
– Redis Object Cache Drop-In v2.0.3 by Till Krüss
– sunrise.php v by

@serpcom: That’s super helpful, it’s a multisite issue.

I’ll look into this today and release a new version later.

You can follow the issue here: https://github.com/rhubarbgroup/redis-cache/issues/230

Yes thank you, we do mostly only multi-site (network installs) some with over 150 sites.

Agencies that manage many sites and do multi-sites are sometimes the forgotten step-children. Plugin developer’s often have the mindset that plugins are only used on single-site installs.

My pet peeve is developers using my dashboard for notices that are really ads, I have to see and dismiss a hundred times a day.

@serpcom: They are, I agree.

Would you mind going to one of your multisite installations that is still running 1.6.3 and go to “Network Admin -> Plugins” and tell me if “Redis Object Cache” is enabled network wide, or maybe just for an individual site?

View post on imgur.com

@serpcom: Or can you book a debugging session with me to find out what’s causing this? You can book time here: https://wprediscache.com/

@serpcom: Also, can you please post your diagnostics before upgrading to v2.x, would be interesting to see the dropin list.

@serpcom: When you click “Enable Object Cache”, are you seeing any status message, such as “Object cache could not be enabled.”?