Hi Kamaraj, I don't think the feature you are referring to exists in Hadoop 2.9.2. The feature was brought up by JIRA https://issues.apache.org/jira/browse/HADOOP-15707 which is released in Hadoop 3.2+ (see "Fixed Version")
Also, you may want to go through the Hadoop manual/doc for your current Hadoop version. If you change r3.3.0 to r2.9.2 in the URL you posted, you should be reading: https://hadoop.apache.org/docs/r2.9.2/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html Thanks, On Fri, Aug 21, 2020 at 11:02 AM Muthupandiyan, Kamaraj < kamaraj.muthupandi...@hpe.com> wrote: > Hello team, > > > > I need to configure LB for our name node setup and we are using Hadoop > 2.9.2 . I was going through the docs from > https://hadoop.apache.org/docs/r3.3.0/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html > and found the below option, but whenever I am using the HTTP endpoints as > mentioned below I am getting 404 response > > > > > > If you are running a set of NameNodes behind a Load Balancer (e.g. Azure > <https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-custom-probe-overview> > or AWS > <https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-healthchecks.html> > ) > and would like the Load Balancer to point to the active NN, you can use the > /isActive HTTP endpoint as a health probe. http://NN_HOSTNAME/isActive > <http://nn_hostname/isActive> will return a 200 status code response if > the NN is in Active HA State, 405 otherwise. > > > > Regards, > > Kamaraj > > > -- L
