Well, I got it.
On 7/14/08, Jason Venner <[EMAIL PROTECTED]> wrote: > > One benefit is that if your map or reduce behaves badly it can't take down > the task tracker. > > In our case we have some poorly behaved external native libraries we use, > and we have to forcibly ensure that the child vms are killed when the child > main finishes (often by kill -9), so the fact the child (task) is a separate > jvm process is very helpful. > > The downside is the jvm start time. Has anyone experimented with the jar > freezing for more than the standard boot class path jars to speed up > startup? > > > Shengkai Zhu wrote: > >> What's the benefits from such design compared to multi-thread? >> >> >> > -- > Jason Venner > Attributor - Program the Web <http://www.attributor.com/> > Attributor is hiring Hadoop Wranglers and coding wizards, contact if > interested > -- 朱盛凯 Jash Zhu 复旦大学软件学院 Software School, Fudan University
