SSL Handshake Error

[AlanCC]

Hi,

When I use pro-sitemap to crawl our website and generate a sitemap, our website(WordPress) becomes slow. And once Cloudflare reports "SSL Handshake error".

I check Apache status and found the server load is not high(0.70 0.50 0.52)

I also check Apache and PHP FPM error log but does not find anything special.

We use event MPM.

So I just wonder if there are any limitations on SSL connections or is there a waiting queue? Or is there any other logs that we can check and find some useful clues?

Thanks

[phranque]

the SSL handshake must be completed before any web request is sent.
therefore you will not find anything related to that problem in web logs, PHP logs, etc.

[tangor]

Have you tried a different sitemap generator? I am assuming that the site is operational and no SSL problems for users...

[AlanCC]

@tangor,

No. Since pro sitemaps works well, I have not tried other generators.

[not2easy]

Some sitemap generators are made for WordPress. Some of them have millions of happy users. A sitemap that lists every version of an URL that WordPress generates is not helping your success because Google knows WP and how it uses so may ways to see the same content. The best sitemap generators for WP are the ones you can decide what to list and what to ignore. Google (or bing) does not index every version of an URL.

[AlanCC]

The support of my server suggest me to increase the serverlimit and maxrequestworkers a bit more, from 250 to 400.

[AlanCC]

@note2easy +

OK. I see. Thank you for your explanation. Do you know any good sitemap generator for WordPress? I hope to use an external online service so that it will use too many resources on our server.

[not2easy]

In general we do not recommend specific tools, we prefer to educate webmasters to make their own judgements. In our WordPress Forum Charter [webmasterworld.com] you'll find a link to the Wordpress.org Plugins Repository: [wordpress.org...]
^{Where to find plugins you can trust and see how other users rate them.}

I can understand using as few plugins as possible, but there are reasons plugins exist - they can easily be integrated and perform routine tasks while using fewer server resources than external tools. Even better, they normally don't do things that hinder your goals.

[AlanCC]

@not2easy+

Thank you very much.

[tangor]

Let us know if changing your generator solved the SSL problem, and that you are getting the sitemap(s) you desire!

[AlanCC]

Thank you. Currently I am evaluating the WP Sitemap plugins. However, it seems that a WP Sitemap plugins can only include Posts & pages inside WP, not other URLs.

[not2easy]

That is because anything other than pages or posts is a duplicate found by how WP allows tags, categories, archives. But in those formats it is only showing pages and posts. If you try to index "everything" Google will decide which version of the content is indexed. Google will still crawl the other formats, but in general it is not the best user experience.