Yes compactions will remove tombstones On Thu, Jun 18, 2015 at 11:46 PM, Jean Tremblay < jean.tremb...@zen-innovations.com> wrote:
> Perfect thank you. > So making a weekly "nodetool repair -pr” on all nodes one after the other > will repair my cluster. That is great. > > If it does a compaction, does it mean that it would also clean up my > tombstone from my LeveledCompactionStrategy tables at the same time? > > Thanks for your help. > > On 19 Jun 2015, at 07:56 , arun sirimalla <arunsi...@gmail.com> wrote: > > Hi Jean, > > Running nodetool repair on a node will repair only that node in the > cluster. It is recommended to run nodetool repair on one node at a time. > > Few things to keep in mind while running repair > 1. Running repair will trigger compactions > 2. Increase in CPU utilization. > > > Run node tool repair with -pr option, so that it will repair only the > range that node is responsible for. > > On Thu, Jun 18, 2015 at 10:50 PM, Jean Tremblay < > jean.tremb...@zen-innovations.com> wrote: > >> Thanks Jonathan. >> >> But I need to know the following: >> >> If you issue a “nodetool repair” on one node will it repair all the >> nodes in the cluster or only the one on which we issue the command? >> >> If it repairs only one node, do I have to wait that the nodetool >> repair ends, and only then issue another “nodetool repair” on the next node? >> >> Kind regards >> >> On 18 Jun 2015, at 19:19 , Jonathan Haddad <j...@jonhaddad.com> wrote: >> >> If you're using DSE, you can schedule it automatically using the repair >> service. If you're open source, check out Spotify cassandra reaper, it'll >> manage it for you. >> >> https://github.com/spotify/cassandra-reaper >> >> >> >> On Thu, Jun 18, 2015 at 12:36 PM Jean Tremblay < >> jean.tremb...@zen-innovations.com> wrote: >> >>> Hi, >>> >>> I want to make on a regular base repairs on my cluster as suggested by >>> the documentation. >>> I want to do this in a way that the cluster is still responding to read >>> requests. >>> So I understand that I should not use the -par switch for that as it >>> will do the repair in parallel and consume all available resources. >>> >>> If you issue a “nodetool repair” on one node will it repair all the >>> nodes in the cluster or only the one on which we issue the command? >>> >>> If it repairs only one node, do I have to wait that the nodetool repair >>> ends, and only then issue another “nodetool repair” on the next node? >>> >>> If we had down time periods I would issue a nodetool -par, but we don’t >>> have down time periods. >>> >>> Sorry for the stupid questions. >>> Thanks for your help. >> >> >> > > > -- > Arun > Senior Hadoop/Cassandra Engineer > Cloudwick > > > 2014 Data Impact Award Winner (Cloudera) > > http://www.cloudera.com/content/cloudera/en/campaign/data-impact-awards.html > > > -- Arun Senior Hadoop/Cassandra Engineer Cloudwick 2014 Data Impact Award Winner (Cloudera) http://www.cloudera.com/content/cloudera/en/campaign/data-impact-awards.html
