Hi, > * What does Hama *really* depend on in Hadoop? It seems that > given its architecture the only dependency should be on HDFS > (since it essentially replaces Mapreduce layer) and common.
You're right. Hama runs on HDFS cluster. > * I see that there's a way of running hama's own Zookeeper service. > Is there a way to utilize an existing instance of Zookeeper? Yes, you can utilize an existing ZK by setting HAMA_MANAGES_ZK in conf/hama-env.sh to false and 'hama.zookeeper.quorum' and 'hama.zookeeper.property.clientPort' properties in conf/hama-site.xml. > * Hama on YARN -- does it still need its own services running (BSPmater, > Groom) or does it become a 100% the same type of application that > mapreduce is on top of YARN ? YARN module is alpha version and not fully tested on large cluster yet. Please ignore at this time. > * What's the best way to run as many 'example' BSP jobs as possible? > Is there an equivalent of hadoop-examples.jar ? Yes, hama-examples-0.x.0.jar. To run the BSP example, you can type the following commands: % bin/hama jar hama-examples-0.x.0.jar On Sat, May 5, 2012 at 2:50 AM, Roman Shaposhnik <[email protected]> wrote: > I'm really happy to see that Haman integration into Bigtop is making > very steady progress. In fact today, for the first time, I was able > to build packages for Hama and play with it (thanks to Victor!). > > That, of course, made me curious about a couple of things wrt. > to Hama deployment/usage. I'm CCign Edward for his advice > (Edward, feel free to CC hama mailing list if you think its appropriate). > > So, here's what I'm curious about: > * What does Hama *really* depend on in Hadoop? It seems that > given its architecture the only dependency should be on HDFS > (since it essentially replaces Mapreduce layer) and common. > * I see that there's a way of running hama's own Zookeeper service. > Is there a way to utilize an existing instance of Zookeeper? > * Hama on YARN -- does it still need its own services running (BSPmater, > Groom) or does it become a 100% the same type of application that > mapreduce is on top of YARN ? > * What's the best way to run as many 'example' BSP jobs as possible? > Is there an equivalent of hadoop-examples.jar ? > > Thanks, > Roman. -- Best Regards, Edward J. Yoon @eddieyoon
