RE: How do I insert a new node while running a MapReduce hadoop?
Yes you can do this... Copy over your config files to the node, and then start the data node and task tracker. They will notify the name node and then you will be up and running. You also need to update your slaves file so that when you stop and start the cluster, the scripts will know it exists. HTH -Mike > Date: Fri, 11 Feb 2011 11:03:31 -0300 > Subject: How do I insert a new node while running a MapReduce hadoop? > From: sandro.csi...@gmail.com > To: common-user@hadoop.apache.org > > Hi, i started using hadoop now and I'm doing some tests on a cluster of three > machines. I wanted to insert a new node after the MapReduce started, is this > possible? How do I?
How do I insert a new node while running a MapReduce hadoop?
Hi, i started using hadoop now and I'm doing some tests on a cluster of three machines. I wanted to insert a new node after the MapReduce started, is this possible? How do I?
Re: How do I insert a new node while running a MapReduce hadoop?
of course you can. What is the node type, datanode?job tracker?task tracker? Let's say you are trying to add a datanode. You can modify the xml file let the datanode pointed to the NameNode, JobTracker, TaskTracker. fs.default.name hdfs://:9000/ mapred.job.tracker ip:port The host and port that the MapReduce job tracker runs at. If "local", then jobs are run in-process as a single map and reduce task. In most cases, the tasktracker and datanode are running on the same machine (to get the best performance). After doing this, you can start the hdfs by command start-dfs.sh On Fri, Feb 11, 2011 at 11:13 AM, Sandro Simas wrote: > Hi, i started using hadoop now and I'm doing some tests on a cluster of > three > machines. I wanted to insert a new node after the MapReduce started, is > this > possible? How do I? > -- -李平
How do I insert a new node while running a MapReduce hadoop?
Hi, i started using hadoop now and I'm doing some tests on a cluster of three machines. I wanted to insert a new node after the MapReduce started, is this possible? How do I?
