lttng-ust is not currently available for EPEL 7. Would you mind branching and building it for EPEL 7? If not, please let me know and I can co-maintain the package (and the EPEL 7 branch)
lttng-ust-2.4.1-1.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-200bd827c6
lttng-ust-2.4.1-1.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-200bd827c6
lttng-tools-2.4.1-1.el7 lttng-ust-2.4.1-1.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-200bd827c6
lttng-tools-2.4.1-1.el7, lttng-ust-2.4.1-1.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-200bd827c6
lttng-tools-2.4.1-1.el7, lttng-ust-2.4.1-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.