Getting 'Apache_Solr_HttpTransportException' with message ''0' Status: Communication Error' on new server

[Anneliese Dehner]

Hi there,

Last night my web host moved my Omeka installation to a new server. I'm connecting to an OpenSolr index from this server. I can ping the server (with my OpenSolr index) from my new server. The OpenSolr index and core appear to be working fine, and the schema/config files are unchanged. But since the server move, php cannot connect to the OpenSolr server. Instead I get the following error:

exception 'Apache_Solr_HttpTransportException' with message ''0' Status: Communication Error' in /home/annelies/public_html/janeaddams/plugins/SolrSearch/lib/solr-php-client/Service.php:338

What could have changed in the new server setup to sever the connection?

Thanks for any insights you may have.

Anneliese

[Donovan Jimenez]

a 0 status means it could not make the tcp connection for some reason. Since you're able to ping, its probably not DNS or routing. But it could be outbound firewall (do you have to ask your web host to make certain outbound tcp connections), or ip access white list at opensolr (did you setup access only for your previous host ip and now need to update it).

You can troubleshoot by trying direct http requests to the index from the host (browser, netcat, curl, wget, etc).

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