/home/gerrit2/review_site/git/ovirt-engine-dashboard.git/hooks
lrwxrwxrwx. 1 gerrit2 gerrit2 14 Aug 2 09:26 change-abandoned.update_tracker -> update_tracker
lrwxrwxrwx. 1 gerrit2 gerrit2 14 Aug 2 09:25 change-merged.update_tracker -> update_tracker
lrwxrwxrwx. 1 gerrit2 gerrit2 82 Aug 2 09:26 comment-added.propagate_review_values -> /home/gerrit2/review_site/hooks/custom_hooks/comment-added.propagate_review_values
lrwxrwxrwx. 1 gerrit2 gerrit2 14 Aug 2 09:25 patchset-created.update_tracker -> update_tracker
lrwxrwxrwx. 1 gerrit2 gerrit2 59 Aug 2 09:25 update_tracker -> /home/gerrit2/review_site/hooks/custom_hooks/update_tracker
Please check and let us know if all works well.
Also, if you want more hooks like change status or verify bug-url its also possible to add.