500 Server error: Premature end of script headers:

Question

I have a website in php that works with a solr indexation server, based on CodeIgniter.

We got a lot of new content, so we flushed the database, and had to reindex t

Answer 1

I had the same problem, just restart the apache server and it works

Answer 2

This error is usually (sometimes) caused by the FastCGI setup of the FcgidIOTimeout directive (old name: IPCCommTimeout).

That is the number of seconds for IO timeout, default is 40 seconds. Timeout means that

"The FastCGI application must begin generating the response within this period of time. Increase this directive as necessary to handle applications which take a relatively long period of time to respond."

You can try to solve it putting this into your vhost.conf:

<IfModule mod_fcgid.c>
  # 5 minutes for IO timeout, default is 40 seconds
  FcgidIOTimeout 300
</IfModule>

You can increase it as you need and then restore the original value once the reindexing process is complete.