It will create more overhead on your cluster. Consider using something like reaper to manage.
> On 21 Apr 2017, at 00:57, eugene miretsky <eugene.miret...@gmail.com> wrote: > > In Cassandra 3.0 the default nodetool repair behaviour is incremental and > parallel. > Is there a downside to triggering repair from multiple nodes at the same > time? > > Basically, instead of scheduling a cron job on one node to run repair, I want > to schedule the job on every node (this way, I don't have to worry about > repair if the one node goes down). Alternatively, I could build a smarter > solution for HA repair jobs, but that seems like an overkill.