Hi, Current BSP and Graph API doesn't support FT mode.
See http://svn.apache.org/repos/asf/hama/trunk/examples/src/main/java/org/apache/hama/examples/SuperstepPiEstimator.java Sorry for lack of documentation. I'll finish the FT and Spilling Queue soon. On Wed, Jul 17, 2013 at 5:31 PM, developer wang <[email protected]> wrote: > hi, all > I am interested in fault tolerance in Hama. > Because of some legacy systems, I still use Hama 0.6.0, and there are a > lot of code to support fault tolerance in Hama 0.6.0. > so I had a try with FT in hama. > > I enable FT in such a way: > pageJob.set("bsp.ft.enabled", "true"); > pageJob.set("bsp.checkpoint.enabled", "true"); > > > is it right? > and I searched fault tolerance doc for hama, but only found > http://wiki.apache.org/hama/GroomServerFaultTolerance?highlight=%28fault%29 > Are there other material about FT in hama? > > With the two lines of code, I enabled FT in hama. and when the groomservers > started to compute after loading vertices, I killed one of the working > groomservers (not master), then all others groomservers hung, but in the > cluster there is still one idle groomserver. > Does hama 0.6.0 support FT? or is FT is unfinished feature in hama 0.6.0? > and how about other versions? -- Best Regards, Edward J. Yoon @eddieyoon
