Re: Nodetool repair multiple dc
One quick question on reaper ..what data is stored in reaper_db keyspace ? And how much does it grow? Do we have to cleanup that frequently or reaper has mechnism to slef clean ? On Friday, April 13, 2018, Alexander Dejanovskiwrote: > Hi Abdul, > > Reaper has been used in production for several years now, by many > companies. > I've seen it handling 100s of clusters and 1000s of nodes with a single > Reaper process. > Check the docs on cassandra-reaper.io to see which architecture matches > your cluster : http://cassandra-reaper.io/docs/usage/multi_dc/ > > Cheers, > > On Fri, Apr 13, 2018 at 4:38 PM Rahul Singh > wrote: > >> Makes sense it takes a long time since it has to reconcile against >> replicas in all DCs. I leverage commercial tools for production clusters, >> but I’m pretty sure Reaper is the best open source option. Otherwise you’ll >> waste a lot of time trying to figure it out own your own. No need to >> reinvent the wheel. >> >> On Apr 12, 2018, 11:02 PM -0400, Abdul Patel , >> wrote: >> >> Hi All, >> >> I have 18 node cluster across 3 dc , if i tey to run incremental repair >> on singke node it takes forever sometome 45 to 1hr and sometime times out >> ..so i started running "nodetool repair -dc dc1" for each dc one by one >> ..which works fine ..do we have an better way to handle this? >> I am thinking abouy exploring cassandra reaper ..does anyone has used >> that in prod? >> >> -- > - > Alexander Dejanovski > France > @alexanderdeja > > Consultant > Apache Cassandra Consulting > http://www.thelastpickle.com >
Re: Nodetool repair multiple dc
Hi Abdul, Reaper has been used in production for several years now, by many companies. I've seen it handling 100s of clusters and 1000s of nodes with a single Reaper process. Check the docs on cassandra-reaper.io to see which architecture matches your cluster : http://cassandra-reaper.io/docs/usage/multi_dc/ Cheers, On Fri, Apr 13, 2018 at 4:38 PM Rahul Singhwrote: > Makes sense it takes a long time since it has to reconcile against > replicas in all DCs. I leverage commercial tools for production clusters, > but I’m pretty sure Reaper is the best open source option. Otherwise you’ll > waste a lot of time trying to figure it out own your own. No need to > reinvent the wheel. > > On Apr 12, 2018, 11:02 PM -0400, Abdul Patel , wrote: > > Hi All, > > I have 18 node cluster across 3 dc , if i tey to run incremental repair on > singke node it takes forever sometome 45 to 1hr and sometime times out ..so > i started running "nodetool repair -dc dc1" for each dc one by one ..which > works fine ..do we have an better way to handle this? > I am thinking abouy exploring cassandra reaper ..does anyone has used that > in prod? > > -- - Alexander Dejanovski France @alexanderdeja Consultant Apache Cassandra Consulting http://www.thelastpickle.com
Re: Nodetool repair multiple dc
Makes sense it takes a long time since it has to reconcile against replicas in all DCs. I leverage commercial tools for production clusters, but I’m pretty sure Reaper is the best open source option. Otherwise you’ll waste a lot of time trying to figure it out own your own. No need to reinvent the wheel. On Apr 12, 2018, 11:02 PM -0400, Abdul Patel, wrote: > Hi All, > > I have 18 node cluster across 3 dc , if i tey to run incremental repair on > singke node it takes forever sometome 45 to 1hr and sometime times out ..so i > started running "nodetool repair -dc dc1" for each dc one by one ..which > works fine ..do we have an better way to handle this? > I am thinking abouy exploring cassandra reaper ..does anyone has used that in > prod?