Hi there- You probably want to give this a read ...
http://hbase.apache.org/book.html#architecture ... most people run Master on the NameNode. -----Original Message----- From: Laurent Hatier [mailto:laurent.hat...@gmail.com] Sent: Wednesday, June 22, 2011 5:14 PM To: user@hbase.apache.org Subject: Re: HBase doesn't work.... Yeap ! I have restart all and reinstall all and it works. :) But i have another questions : - I have seen that Master runs with his RegionServer and the others in the cluster. But it's possible to run Master only and the others RegionServer in the cluster? - Is there a great difference between the HDFS and a folder like /tmp to stock the HBase file (table, etc..) ? 2011/6/22 Jeff Whiting <je...@qualtrics.com> > I'm not sure what your specific problem is but these are the steps I'd > take to get it up and running: > 1. Setup and get hdfs running (verify it by going to > http://hdfs-host:50070/) > 2. Get zookeeper up and running on 1 host 3. Get hbase up and running > in pseudo distributed mode. See: > http://hbase.apache.org/book.**html#distributed<http://hbase.apache.or > g/book.html#distributed> > . > > Once you have pseudo distributed mode working, all you have to do is > add more nodes and everything works. Make sure dns / hosts file is > setup correctly, if not things wont work. As far as zookeeper is > concerned you would want 1 or 3 zk nodes but not 2. For a cluster your size > 1 is plenty. > I'd also update to cdh3u0 as that is the most recent. If you still > can't get pseudo distributed mode working I'd fall back to getting > hbase up and running with just a single node running on the local file > system--see > http://hbase.apache.org/book.**html#quickstart<http://hbase.apache.org > /book.html#quickstart> > . > > > Good luck, > ~Jeff > > > On 6/22/2011 2:34 AM, Laurent Hatier wrote: > >> And one thing : i have set the hbase-env like this : JAVA_HOME = >> /usr/lib/jvm/java-6-sun, HBASE_MANAGE_ZK = true, HBASE_CLASSPATH = >> /usr/lib/hadoop/conf.... and the hbase-site : hbase.cluster.distributed : >> true and hbase.zookeeper.quorum : IP adresses of my 3 nodes >> >> 2011/6/22 Laurent >> Hatier<laurent.hatier@gmail.**com<laurent.hat...@gmail.com> >> > >> >> My conf sorry : HBase 0.90.1 with cloudera& Hadoop 0.20 with >> cloudera >>> (package cdh3b4) >>> >>> >>> 2011/6/22 Laurent >>> Hatier<laurent.hatier@gmail.**com<laurent.hat...@gmail.com> >>> > >>> >>> Hi all, >>>> >>>> I know it's maybe ridiculous but i have problems with HBase >>>> installation in cluster. I will have follow 2-3 tutorials on it but it >>>> doesn't work. >>>> Well, first i would like to know if it possible to have 2 servers >>>> in cluster with HBase. I ask this because i have seen that we must >>>> have 3 servers for Zookeeper. >>>> Secondly, i don't have really understood the Zookeeper definition >>>> ^^ (maybe this one can be the first ^^) I use HDFS for root.dir but >>>> there is a lot of difference between HDFS and /tmp for example ? >>>> I start "hbase master start" like this and "hbase regionserver >>>> start" on the other node. >>>> I have already insert IP adresses in the regionserver file. >>>> Thirdly, i have question about HDFS : when i start hbase on 1 >>>> server it works (root.dir use HDFS) ; but when i want to see the >>>> hadoop system with >>>> localhost:50030 (and of course i have starting all) it doesn't work... >>>> There >>>> is a relation ? >>>> >>>> If anyone can answer me one of these (or all ^^) thanks to you ! >>>> >>>> >>>> >>>> -- >>>> Laurent HATIER >>>> Étudiant en 2e année du Cycle Ingénieur à l'EISTI >>>> >>>> >>> >>> -- >>> Laurent HATIER >>> Étudiant en 2e année du Cycle Ingénieur à l'EISTI >>> >>> >> >> > -- > Jeff Whiting > Qualtrics Senior Software Engineer > je...@qualtrics.com > > -- Laurent HATIER Étudiant en 2e année du Cycle Ingénieur à l'EISTI
