Re: Eclipse plugin
I found that Hadoop 0.20.2 and eclipse Helios can work correctly. It's really hard to make them work together properly. clakshminarasu clakshminar...@gmail.com编写： Hi, I am new to this Hadoop programming. I tried downloading the vm ware appliance and Eclipse/Hadoop plugin. I got the same error while configuring the eclipse plugin for Hadoop DFS. I started by configuring the VM Ware server formation; entered the IP address that appeared in the appliance. But I was not able to see the hadoop.job.ugi parameter in the advanced tab. I tried setting each parameter which requires a path (eg. local dir, system dir, etc.) by mentioning the absolute path. In my case the temp folder was - /tmp/hadoop-hadoop-user (hadoop appearing 2 times is not a typo, but it is actually appearing like that) then it cleaves into 2 subs - dfs and mapred. Even then I was not able to see the vm ware DFS. When I open the folder, I get Error:null inside. Can any one guide me in setting this up? :working: Thanks in advance. Lakshminarasu Chenduri +91 90499.18088 Pune, India -- View this message in context: http://old.nabble.com/Eclipse-plugin-tp21983984p31932110.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
Re: Hadoop Eclipse plugin 0.20.203.0 doesn't work
can anyone help me? 叶达峰 kobe082...@qq.com编写： Hi, I am a freshman on Hadoop. Today, I spent the whole night trying to set up a development environment for Hadoop. I encounter several problems, first is that the eclipse can't load the plugin, I changed to another version, this problem was resolved. But now, I have one more difficult problem. I try to set up Map/Reduce Location, if everything were well, it should connect to the server and the DFS Location could list the whole file system. Sadly, it doesn't work. I have checked to configuration several times, it should be correct. Here is the message I get: Error: failure to login An internal error occured during: Map/reduce location status updater. org/codehaus/jackson/map/jsonmappingexception
Re: Hadoop eclipse plugin stopped working after replacing hadoop-0.20.2 jar files with hadoop-0.20-append jar files
do you use hadoop 0.20.203.0? I also have problem about this plugin. Yaozhen Pan itzhak@gmail.com编写： Hi, I am using Eclipse Helios Service Release 2. I encountered a similar problem (map/reduce perspective failed to load) when upgrading eclipse plugin from 0.20.2 to 0.20.3-append version. I compared the source code of eclipse plugin and found only a few difference. I tried to revert the differences one by one to see if it can work. What surprised me was that when I only reverted the jar name from hadoop-0.20.3-eclipse-plugin.jar to hadoop-0.20.2-eclipse-plugin.jar, it worked in eclipse. Yaozhen On Thu, Jun 23, 2011 at 1:22 AM, praveenesh kumar praveen...@gmail.comwrote: I am doing that.. its not working.. If I am replacing the hadoop-core from hadoop-plugin.jar.. I am not able to see map-reduce perspective at all. Guys.. any help.. !!! Thanks, Praveenesh On Wed, Jun 22, 2011 at 12:34 PM, Devaraj K devara...@huawei.com wrote: Every time when hadoop builds, it also builds the hadoop eclipse plug-in using the latest hadoop core jar. In your case eclipse plug-in contains the other version jar and cluster is running with other version. That's why it is giving the version mismatch error. Just replace the hadoop-core jar in your eclipse plug-in with the jar whatever the hadoop cluster is using and check. Devaraj K _ From: praveenesh kumar [mailto:praveen...@gmail.com] Sent: Wednesday, June 22, 2011 12:07 PM To: common-user@hadoop.apache.org; devara...@huawei.com Subject: Re: Hadoop eclipse plugin stopped working after replacing hadoop-0.20.2 jar files with hadoop-0.20-append jar files I followed michael noll's tutorial for making hadoop-0-20-append jars.. http://www.michael-noll.com/blog/2011/04/14/building-an-hadoop-0-20-x-versio n-for-hbase-0-90-2/ After following the article.. we get 5 jar files which we need to replace it from hadoop.0.20.2 jar file. There is no jar file for hadoop-eclipse plugin..that I can see in my repository if I follow that tutorial. Also the hadoop-plugin I am using..has no info on JIRA MAPREDUCE-1280 regarding whether it is compatible with hadoop-0.20-append. Does anyone else. faced this kind of issue ??? Thanks, Praveenesh On Wed, Jun 22, 2011 at 11:48 AM, Devaraj K devara...@huawei.com wrote: 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
Re: Hadoop eclipse plugin stopped working after replacing hadoop-0.20.2 jar files with hadoop-0.20-append jar files
I used the 0.20.203.0, and can't access the Dfs locations. Following is the error: failure to login internal error:map/reduce location status updater org/codehaus/jackson/map/jsonmappingexceptoon Yaozhen Pan itzhak@gmail.com编写： Hi, Our hadoop version was built on 0.20-append with a few patches. However, I didn't see big differences in eclipse-plugin. Yaozhen On Thu, Jun 23, 2011 at 11:29 AM, 叶达峰 (Jack Ye) kobe082...@qq.com wrote: do you use hadoop 0.20.203.0? I also have problem about this plugin. Yaozhen Pan itzhak@gmail.com编写： Hi, I am using Eclipse Helios Service Release 2. I encountered a similar problem (map/reduce perspective failed to load) when upgrading eclipse plugin from 0.20.2 to 0.20.3-append version. I compared the source code of eclipse plugin and found only a few difference. I tried to revert the differences one by one to see if it can work. What surprised me was that when I only reverted the jar name from hadoop-0.20.3-eclipse-plugin.jar to hadoop-0.20.2-eclipse-plugin.jar, it worked in eclipse. Yaozhen On Thu, Jun 23, 2011 at 1:22 AM, praveenesh kumar praveen...@gmail.com wrote: I am doing that.. its not working.. If I am replacing the hadoop-core from hadoop-plugin.jar.. I am not able to see map-reduce perspective at all. Guys.. any help.. !!! Thanks, Praveenesh On Wed, Jun 22, 2011 at 12:34 PM, Devaraj K devara...@huawei.com wrote: Every time when hadoop builds, it also builds the hadoop eclipse plug-in using the latest hadoop core jar. In your case eclipse plug-in contains the other version jar and cluster is running with other version. That's why it is giving the version mismatch error. Just replace the hadoop-core jar in your eclipse plug-in with the jar whatever the hadoop cluster is using and check. Devaraj K _ From: praveenesh kumar [mailto:praveen...@gmail.com] Sent: Wednesday, June 22, 2011 12:07 PM To: common-user@hadoop.apache.org; devara...@huawei.com Subject: Re: Hadoop eclipse plugin stopped working after replacing hadoop-0.20.2 jar files with hadoop-0.20-append jar files I followed michael noll's tutorial for making hadoop-0-20-append jars.. http://www.michael-noll.com/blog/2011/04/14/building-an-hadoop-0-20-x-versio n-for-hbase-0-90-2/ After following the article.. we get 5 jar files which we need to replace it from hadoop.0.20.2 jar file. There is no jar file for hadoop-eclipse plugin..that I can see in my repository if I follow that tutorial. Also the hadoop-plugin I am using..has no info on JIRA MAPREDUCE-1280 regarding whether it is compatible with hadoop-0.20-append. Does anyone else. faced this kind of issue ??? Thanks, Praveenesh On Wed, Jun 22, 2011 at 11:48 AM, Devaraj K devara...@huawei.com wrote: 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
