According to your description, I think it is still a configuration problem. Before you run hadoop command, did you check the hadoop version and hadoop environment variables ? Are they what you want?
On Mon, May 5, 2014 at 11:42 PM, chandra kant < chandralakshmikan...@gmail.com> wrote: > I mean , I tried that already. In my .bash_profile , I set up > HADOOP_HOME, HADOOP_MAPRED_HOME, HADOOP_COMMON_HOME, HADOOP_HDFS_HOME, > HADOOP_YARN_HOME, HADOOP_CONF_DIR to point to hadoop2 directory. And > similarly I have HADOOP_PREFIX and HADOOP_HOME for hadoop-1. > So , i comment out hadoop-2 specific conf lines in .bash_profile while > running hadoop-1 and vice-versa. > And here the problem comes, that when trying to run hadoop-2 , it asks to > format the hadoop.tmp.dir set up by hadoop-1. > > Just for context- I have done fair amount of work on hadoop-1 and this is > my first attempt at hadoop-2. > > -- > Chandra > > > On Mon, May 5, 2014 at 11:31 AM, chandra kant < > chandralakshmikan...@gmail.com> wrote: > >> Thanks.. >> I set it accordingly.. >> >> >> On Monday, 5 May 2014, Shengjun Xin <s...@gopivotal.com> wrote: >> >>> I think you need to set two different environment variables for hadoop1 >>> and hadoop2, such as HADOOP_HOME, HADOOP_CONF_DIR and before you run hadoop >>> command, you need to make sure the correct environment variables are enable. >>> >>> >>> On Mon, May 5, 2014 at 12:36 PM, chandra kant < >>> chandralakshmikan...@gmail.com> wrote: >>> >>>> >>>> Hi, >>>> Is it possible to install both hadoop1 and hadoop2 side by side on >>>> single node for development purpose so that I can choose any one of them by >>>> just shutting down one and starting another? >>>> I installed hadoop 1.2.1 and ran air successfully. >>>> Next, when I try to do "hdfs namenode - format " from hadoop2.2.0 , it >>>> tries to format the hadoop.tmp.dir set up by hadoop1.2.1 , which is clearly >>>> not desirable. I set up "dfs.namenode.name.dir" and "dfs.datanode.data.dir" >>>> in "hdfs-site.xml" to different >>>> locations. >>>> But again the same problem... >>>> Any suggestions.... >>>> >>>> -- >>>> Chandra >>>> >>>> >>> >>> >>> -- >>> Regards >>> Shengjun >>> >> > -- Regards Shengjun
