If your're interested, some good slides on GC (slide 45 and after): http://www.azulsystems.com/sites/www.azulsystems.com/SpringOne2011_UnderstandingGC.pdf
On Tue, Nov 8, 2011 at 11:25 PM, Mikael Sitruk <mikael.sit...@gmail.com>wrote: > Concurrent GC (a.k.a CMS) does not mean that there is no more pause. The > pauses are reduced to minimum but can still happen especially if the > concurrent thread will not finish their work under high pressure. The G1 > collector in JDK 7.0 pretends to be a better collector than CMS, but i > presume tests will need to be done to validate this. > BTW the CMS collector is the one that is recommented in the book. > > Mikael.S > > On Tue, Nov 8, 2011 at 11:57 PM, Sujee Maniyam <su...@sujee.net> wrote: > > > HI All > > the HBase book by Lars warns it is not recommended to set heap size above > > 16G, because of 'stop the world' GC. > > > > Does this still apply? Specially with 'concurrentGC' ? > > > > thanks > > Sujee > > http://sujee.net > > > > > > -- > Mikael.S >
