Is there a Java class that provides access to the JobHistoryServer?

Hi, Cluster.java "provides a way to access information about the map/reduce

Re: Hadoop: precomputing data

I guess one of the questions is what is your false negative rate in Approach 1 Step 1? Ofcourse if you are limited by resources you may have to go with Approach 1. On Thu, Oct 6, 2016 at 6:14 AM, venito camelas wrote: > I'm designing a prototype using *Hadoop* for

Re: Newbie Ambari Question

I suspect https://ambari.apache.org/mail-lists.html may be more useful. On Thu, Oct 6, 2016 at 2:45 AM, Deepak Goel wrote: > > Hey > > Namaskara~Nalama~Guten Tag~Bonjour > > Sorry, Is this the right forum for asking a question "Ambari Hadoop > Installation" from Hortonworks?

Re: HDFS Issues.

There are a few conditions for the Namenode to come out of safemode. # Number of datanodes, # Number of blocks that have been reported. How many blocks have the datanodes reported? On Tue, Oct 4, 2016 at 1:22 PM, Steve Brenneis wrote: > I have an HDFS cluster of three

RE: how to add a shareable node label?

Thanks, Sunil. It makes a lot of sense. I will try it out. From: Sunil Govind [mailto:sunil.gov...@gmail.com] Sent: Wednesday, October 12, 2016 9:21 AM To: Frank Luo ; user@hadoop.apache.org Subject: Re: how to add a shareable node label? Hi Frank Thanks for sharing more

Re: HDFS Replication Issue

Hi Eric! Did you follow https://hadoop.apache.org/docs/current2/hadoop-project- dist/hadoop-common/SingleCluster.html to set up your single node cluster? Did you set dfs.replication in hdfs-site.xml ? The logs you posted don't have enough information to debug the issue. *IF* everything has been

Re: how to add a shareable node label?

Hi Frank Thanks for sharing more details. Let me try this combination and I might be wrong, so pls correct me. And I think sharable node-label could help here. Labels: Node1-4 = default label Node8-9 = "special" label Queues: "ProdQ" accessable-labels is "" (only default label) "TestQ"