Is there any reason why cassandra doesn't do nodetool repair out of the box at some fixed intervals?
On Tue, Aug 28, 2012 at 9:08 PM, Aaron Turner <synfina...@gmail.com> wrote: > Funny you mention that... i just was hearing on #cassandra this > morning that it repairs the replica set by default. I was thinking of > repairing every 3rd node (RF=3), but running -pr seems "cleaner". > > Do you know if this (repairing a replica vs node) was introduced in 1.0 or > 1.1? > > On Tue, Aug 28, 2012 at 7:03 AM, Edward Capriolo <edlinuxg...@gmail.com> > wrote: > > You can consider adding -pr. When iterating through all your hosts > > like this. -pr means primary range, and will do less duplicated work. > > > > On Mon, Aug 27, 2012 at 8:05 PM, Aaron Turner <synfina...@gmail.com> > wrote: > >> I use cron. On one box I just do: > >> > >> for n in node1 node2 node3 node4 ; do > >> nodetool -h $n repair > >> sleep 120 > >> done > >> > >> A lot easier then managing a bunch of individual crontabs IMHO > >> although I suppose I could of done it with puppet, but then you always > >> have to keep an eye out that your repairs don't overlap over time. > >> > >> On Mon, Aug 27, 2012 at 4:52 PM, Edward Sargisson > >> <edward.sargis...@globalrelay.net> wrote: > >>> Hi all, > >>> So nodetool repair has to be run regularly on all nodes. Does anybody > have > >>> any interesting strategies or tools for doing this or is everybody just > >>> setting up cron to do it? > >>> > >>> For example, one could write some Puppet code to splay the cron times > around > >>> so that only one should be running at once. > >>> Or, perhaps, a central orchestrator that is given some known quiet > time and > >>> works its way through the list, running nodetool repair one at a time > (using > >>> RPC?) until it runs out of time. > >>> > >>> Cheers, > >>> Edward > >>> -- > >>> > >>> Edward Sargisson > >>> > >>> senior java developer > >>> Global Relay > >>> > >>> edward.sargis...@globalrelay.net > >>> > >>> > >>> 866.484.6630 > >>> New York | Chicago | Vancouver | London (+44.0800.032.9829) | > Singapore > >>> (+65.3158.1301) > >>> > >>> Global Relay Archive supports email, instant messaging, BlackBerry, > >>> Bloomberg, Thomson Reuters, Pivot, YellowJacket, LinkedIn, Twitter, > Facebook > >>> and more. > >>> > >>> > >>> Ask about Global Relay Message — The Future of Collaboration in the > >>> Financial Services World > >>> > >>> > >>> All email sent to or from this address will be retained by Global > Relay’s > >>> email archiving system. This message is intended only for the use of > the > >>> individual or entity to which it is addressed, and may contain > information > >>> that is privileged, confidential, and exempt from disclosure under > >>> applicable law. Global Relay will not be liable for any compliance or > >>> technical information provided herein. All trademarks are the > property of > >>> their respective owners. > >> > >> > >> > >> -- > >> Aaron Turner > >> http://synfin.net/ Twitter: @synfinatic > >> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix > & Windows > >> Those who would give up essential Liberty, to purchase a little > temporary > >> Safety, deserve neither Liberty nor Safety. > >> -- Benjamin Franklin > >> "carpe diem quam minimum credula postero" > > > > -- > Aaron Turner > http://synfin.net/ Twitter: @synfinatic > http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & > Windows > Those who would give up essential Liberty, to purchase a little temporary > Safety, deserve neither Liberty nor Safety. > -- Benjamin Franklin > "carpe diem quam minimum credula postero" >
