Not very sure the current status. But given a quick check that it looks like still no metrics information exported, and lower level detection is remained as usual. I am afraid that there might have side effects.
On 18 July 2013 08:48, Edward J. Yoon <[email protected]> wrote: > 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
