Hi @astrava,
Most probable reason is that an old searchd proc is still occupying the port 9312 TCP.
Start with:
# netstat -plnt|grep 9312
If I’m right, kill that process.
In case that’s not the issue, try:
# bash -x /etc/init.d/kaltura-sphinx restart
and look at the debug info outputted to STDERR to understand what the issue is.
Also, check /opt/kaltura/log/sphinx/kaltura_sphinx_searchd.log