Is there multiple version of hadoop jar files in the class path? This error looks like hdfs client is from Hadoop 1.x. If there is older version of hadoop-core*.jar file, it can generate this error.
regards, Eric On Tue, Jan 29, 2013 at 11:24 PM, Farrokh Shahriari < mohandes.zebeleh...@gmail.com> wrote: > Hi there, > I downloaded & installed chuckwa 0.5 on hadoop version 2 (cdh 4.0.0).But > when collector runs,it has showed this error : > Server IPC version 7 cannot communicate with client version 4 > > I copied lib from /user/lib/hadoop/*.jar & /user/lib/hadoop-hdfs/*.jar, > but couldn't get result. > > I'd be glad if someone can help me. > Tnx >