Problems with mysql client connections

Resolved moisb
(@moisb)

9 years, 11 months ago

Hello. I’m several days in an attempt to discover the reason for the mysql error “Got an error reading communication packets” which causes the message “Connection lost. Saving Has Been disabled until you’re reconnected …” in wordpress and leaves the website extremely slow or inaccessible. I even asked for help in the stackoverflow: http://stackoverflow.com/questions/38233375/errors-and-issues-in-the-rds-with-mysql-5-7-and-wordpress-website but it seems that no one knows how to solve. So, I suspect that Mysql settings are all OK.

I realized that this happens whenever I do I upload an image in a post. So I began to suspect EWWW Image Optimizer. I use the “cloud” version.

Can someone help me?

https://ww.wp.xz.cn/plugins/ewww-image-optimizer/

Viewing 5 replies - 1 through 5 (of 5 total)

Plugin Author Shane Bishop
(@nosilver4u)

9 years, 11 months ago

Did you upgrade to 2.9.1 yet?

Thread Starter moisb
(@moisb)

9 years, 11 months ago

yes, but after upgrading to 2.9.1 the problem continued. I took a look at the changelog and saw new feature “Parallel optimization”. I now deactivated this option to see if that resolves the problem.

But it’s still strange because the database is in an isolated server (Amazon RDS) and the plugin uses the cloud to conversion.
The site environment (nginx + php-fpm + memcached) has affected the performance when this problem occurs in the database.

Plugin Author Shane Bishop
(@nosilver4u)

9 years, 11 months ago

That’s very unusual, especially using Amazon RDS and the setup you have, which should be very high performing. There seems to be some conflict with another plugin or something going on here.

So I’m going to ask you if you can follow standard troubleshooting process. If need be, create a clone of your site to do this:

1. Turn off all plugins except EWWW, and switch to one of the default themes (twenty fifteen or twenty sixteen). Do the same upload (or two or three), what happens?
If there is no problem with just EWWW, activate plugins one at a time until the problem happens again. And then finally activate your theme again and try one last time.

Plugin Author Shane Bishop
(@nosilver4u)

9 years, 11 months ago

Try this out: https://downloads.wp.xz.cn/plugin/ewww-image-optimizer.zip

Thread Starter moisb
(@moisb)

9 years, 11 months ago

Hello. After disabling the option “Parallel optimization” on version 2.9.1 I did several tests for 1 day, and there were no problem.
I continue with all other plugins enabled. And everything looks fine so far 🙂

Viewing 5 replies - 1 through 5 (of 5 total)

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