It has been true since about 0.8. in the old days ANTI-COMPACTION stunk and many weird errors would cause node joins to have to be retried N times.
Now node moves/joins seem to work near 100% of the time (in 1.0.7) they are also very fast and efficient. If you want to move a node to new hardware you can do it with rsync, but I would not use the technique for growing the cluster. It is error prone, and ends up being more work. On Tue, Jan 8, 2013 at 10:57 AM, DE VITO Dominique < dominique.dev...@thalesgroup.com> wrote: > " Now streaming is very efficient rarely fails and there is no need to > do it this way anymore" > > > > I guess it's true in v1.2. > > Is it true also in v1.1 ? > > > > Thanks. > > > > Dominique > > > > > > *De :* Edward Capriolo [mailto:edlinuxg...@gmail.com] > *Envoyé :* mardi 8 janvier 2013 16:01 > *À :* user@cassandra.apache.org > *Objet :* Re: about validity of recipe "A node join using external data > copy methods" > > > > Basically this recipe is from the old days when we had anti-compaction. > Now streaming is very efficient rarely fails and there is no need to do it > this way anymore. This recipe will be abolished from the second edition. It > still likely works except when using counters. > > > > Edward > > > > On Tue, Jan 8, 2013 at 7:27 AM, DE VITO Dominique < > dominique.dev...@thalesgroup.com> wrote: > > Hi, > > > > Edward Capriolo described in his Cassandra book a faster way [1] to start > new nodes if the cluster size doubles, from N to 2 *N. > > > > It's about splitting in 2 parts each token range taken in charge, after > the split, with 2 nodes: the existing one, and a new one. And for starting > a new node, one needs to: > > - copy the data records from the corresponding node (without the "system" > records) > > - start the new node with "auto_bootstrap: false" > > > > This raises 2 questions: > > > > A) is this recipe still valid with v1.1 and v1.2 ? > > > > B) do we still need to start the new node with "auto_bootstrap: false" ? > > My guess is "yes" as the happening of the bootstrap phase is not recorded > into the data records. > > > > Thanks. > > > > Dominique > > > > [1] see recipe "A node join using external data copy methods", page 165 > > >
