redis-sentinel.service refers to /usr/bin/redis-sentinel which is not provided in the package.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
redis-2.8.14-1.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/redis-2.8.14-1.fc21
Package redis-2.8.14-2.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing redis-2.8.14-2.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-10699/redis-2.8.14-1.fc21 then log in and leave karma (feedback).
redis-2.8.15-1.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/redis-2.8.15-1.fc21
redis-2.8.15-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.