I am not using HA here. All I am trying here is to make a 2 node cluster. But before that i wanted to make sure that i am setting up everything right and make the HDFS up on Pseudo distributed mode. However, I am suspecting a mistake in my /etc/hosts file. As, I have rename the local host to myhost-1
Please suggest. ________________________________ From: Azuryy Yu <azury...@gmail.com> To: user@hadoop.apache.org; Manish Bhoge <manishbh...@rocketmail.com> Sent: Wednesday, 7 August 2013 1:08 PM Subject: Re: Namenode is failing with expception to join Manish, you stop HDFS then start HDFS on the standby name node right? please looked at https://issues.apache.org/jira/browse/HDFS-5058 there are two solutions: 1) start HDFS on the active name node, nor SBN 2) copy {namenode.name.dir}/* to the SBN I advice #1. On Wed, Aug 7, 2013 at 3:00 PM, Manish Bhoge <manishbh...@rocketmail.com> wrote: I have all configuration fine. But whenever i start namenode it fails with a below exception. No clue where to fix this? > > > >"2013-08-07 02:56:22,754 FATAL >org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join" >2013-08-07 02:56:22,751 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: >Number of files = 1 2013-08-07 02:56:22,751 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: Number of files under construction = 0 2013-08-07 02:56:22,752 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: Image file of size 115 loaded in 0 seconds. 2013-08-07 02:56:22,752 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: Loaded image for txid 0 from /data/1/dfs/nn/current/fsimage_0000000000000000000 2013-08-07 02:56:22,752 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: Reading org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream@5f18223d expecting start txid #1 2013-08-07 02:56:22,752 INFO org.apache.hadoop.hdfs.server.namenode.EditLogInputStream: Fast-forwarding stream '/data/1/dfs/nn/current/edits_0000000000000515247-0000000000000515255' to transaction ID 1 2013-08-07 02:56:22,753 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping NameNode metrics system... 2013-08-07 02:56:22,754 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system stopped. 2013-08-07 02:56:22,754 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system shutdown complete. 2013-08-07 02:56:22,754 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join java.io.IOException: There appears to be a gap in the edit log. We expected txid 1, but got txid 515247.
