Для sphinx-2.2.11-alt3 конфигурация logrotate.d/sphinx вызывает проблемы 
с текущим logrotate:

# logrotate -f /etc/logrotate.d/sphinx
error: skipping "/var/log/sphinx/query.log" because parent directory has insecure permissions (it's group writable and has no sticky bit set); consider using "su" directive in config file to tell logrotate which user/group should be used for rotation.
error: skipping "/var/log/sphinx/searchd.log" because parent directory has insecure permissions (it's group writable and has no sticky bit set); consider using "su" directive in config file to tell logrotate which user/group should be used for rotation.

Для исправления достаточно добавить в скрипт logrotate'а строку
su _sphinx _sphinx

Сам скрипт создаётся в spec-файле.