Hadoop eclipse plugin also uses hadoop-core.jar file communicate to the hadoop cluster. For this it needs to have same version of hadoop-core.jar for client as well as server(hadoop cluster).
Update the hadoop eclipse plugin for your eclipse which is provided with hadoop-0.20-append release, it will work fine. Devaraj K -----Original Message----- From: praveenesh kumar [mailto:praveen...@gmail.com] Sent: Wednesday, June 22, 2011 11:25 AM To: common-user@hadoop.apache.org Subject: Hadoop eclipse plugin stopped working after replacing hadoop-0.20.2 jar files with hadoop-0.20-append jar files Guys, I was using hadoop eclipse plugin on hadoop 0.20.2 cluster.. It was working fine for me. I was using Eclipse SDK Helios 3.6.2 with the plugin "hadoop-eclipse-plugin-0.20.3-SNAPSHOT.jar" downloaded from JIRA MAPREDUCE-1280 Now for Hbase installation.. I had to use hadoop-0.20-append compiled jars..and I had to replace the old jar files with new 0.20-append compiled jar files.. But now after replacing .. my hadoop eclipse plugin is not working well for me. Whenever I am trying to connect to my hadoop master node from that and try to see DFS locations.. it is giving me the following error: * Error : Protocol org.apache.hadoop.hdfs.protocol.clientprotocol version mismatch (client 41 server 43)* However the hadoop cluster is working fine if I go directly on hadoop namenode use hadoop commands.. I can add files to HDFS.. run jobs from there.. HDFS web console and Map-Reduce web console are also working fine. but not able to use my previous hadoop eclipse plugin. Any suggestions or help for this issue ? Thanks, Praveenesh
