Re: mapreduce streaming with hbase as a source

2011-02-19 Thread ShengChang Gu
By default, the prefix of a line up to the first tab character is the key and the rest of the line (excluding the tab character) will be the value. If there is no tab character in the line, then entire line is considered as key and the value is null. However, this can be customized, Use: -D stream

Re: Add a new node into running Hadoop from the Hadoop code

2011-01-23 Thread ShengChang Gu
you can try these steps: 1. edit new datanode conf 2. edit namenode conf 3.start-all.sh 2011/1/19 Robert Grandl > Hi, > > It is possible to add a new tasktracker node from the Hadoop code directly > ? > > For example I have in the slaves a list of nodes but only some of them are > running at the