Server not connecting with 2.1.1 release and Search API Solr 4.2.10

Hello and thank you for reporting this issue.

I'd like to confirm that the pingServer change was intentional, because there were changes on the opensolr side.
I tested the US EAST index and cluster with Drupal 9.5.7 and Drupal 10.0.3, Search API Solr 4.2.10 and Search API Opensolr 2.1.1, and they both work properly.

I cannot reproduce the error, therefore I'll have to mark this as postponed until I get more information, assuming that you are using the "Opensolr with Basic Auth (recommended)" Solr Connector and the Security in Opensolr is allowing the correct IPs or all.

Hello,

I am also facing same issue,
For Server Connection it is saying, The Solr server could not be reached or is protected by your service provider. I am using "OpenSolr with Basic auth", and security in OpenSolr is allowing for all IPS. However, my core is reachable, and I am able to index the content, but this message is showing on admin page, and status of server is showing as "Unavailable".

Reducing the priority as this is affecting only the ping, the rest of the functionality is working properly. As I said before, I cannot reproduce this, I tried on both Drupal 9 and Drupal 10, both indexes and clusters, so at the moment there's nothing I can do unless we get more info. Based on my tests, the admin page works as expected.

As for the resolution of this, I will require more information to understand why some of you are getting this error.
Please open a ticket here: https://opensolr.freshdesk.com/support/login, or send an email to support@opensolr.com with the OpenSolr account email and the affected Index Name so that we can look into it there. Please also mention in the subject the following string: [opesolr#3351611].

Thanks

We are experiencing the same issue. I emailed opensolr like you said, but here is a little more info in case it helps.

Drupal 9.5.7
Search API Solr 4.2.10
Search API Opensolr 2.1.1
Solr Version: 8 us-east

I noticed the ping request is going to https://us-east-8-11.solrcluster.com:443/solr/admin/info/system?wt=json&...
and is resulting in a 400 Bad request, like nsciacca reported.

If I add the pingServer() function back though, it works.
It ends up calling the pingEndpoint() function instead of getServerInfo(), which ends up calling an endpoint that's specific to our index (HCFWebsite):
https://us-east-8-11.solrcluster.com:443/solr/HCFWebsite/admin/ping?omit...

Thank you for contacting opensolr support, we now have more information about the requests that are failing. We're going to provide a fix.

Please apply the following patch: https://git.drupalcode.org/project/search_api_opensolr/-/merge_requests/...

I kindly ask everyone that is experiencing this issue to report back if it's working. I'm going to keep this issue open for a while until enough feedback is received, and then I'll create a new release.

Thanks everyone!

The patch is working for us, thanks!

I can no longer reproduce the error. I updated back to 2.1.1 and it's connecting fine, even without the patch added. Strange, but I think this is good to go.

Well, the issue is that some servers are restricting access to the server admin info, this is why I couldn't reproduce the issue. Maybe your server got changed temporarily, and that's why you are not getting the error anymore. I expect that opensolr will restrict all if not most servers, so you should probably apply the patch anyways just in case it changes on the opensolr part. Thanks.

Automatically closed - issue fixed for 2 weeks with no activity.