Connect to 9001 is right, this is jobtracker's ipc port while 50030 is its http server port. And have you ever try to run the grunt shell ?
On Thu, Aug 26, 2010 at 7:12 PM, rahul <rmalv...@apple.com> wrote: > Hi Jeff, > > I can connect to the jobtracker web UI using the following URL : > http://localhost:50030/jobtracker.jsp > > And also I can see jobs which I ran directly using the streaming api on > hadoop. > > I also see it tries to connect to localhost/127.0.0.1:9001 which I have > specified in the hadoop conf file > and I have also tried changing this location to localhost:50030 but still the > error remains the same. > > Can you suggest something further ? > > Thanks, > Rahul > > On Aug 26, 2010, at 7:07 PM, Jeff Zhang wrote: > >> Can you look at the jobtracker log or access jobtracker web ui ? >> It seems you can not connect to jobtracker according your log >> >> "Caused by: java.io.IOException: Call to localhost/127.0.0.1:9001 >> failed on local exception: java.io.EOFException" >> >> >> >> On Fri, Aug 27, 2010 at 10:00 AM, rahul <rmalv...@apple.com> wrote: >>> Yes they are running. >>> >>> On Aug 26, 2010, at 6:59 PM, Jeff Zhang wrote: >>> >>>> Execute command jps in shell to see whether namenode and jobtracker is >>>> running correctly. >>>> >>>> >>>> >>>> On Fri, Aug 27, 2010 at 9:49 AM, rahul <rmalv...@apple.com> wrote: >>>>> Hi Jeff, >>>>> >>>>> I transferred the hadoop conf files to the pig/conf location but still i >>>>> get the same error. >>>>> >>>>> Does the issue is with the configuration files or with the hdfs files >>>>> system ? >>>>> >>>>> Can test the connection to hdfs(localhost/127.0.0.1:9001) in some way ? >>>>> >>>>> Steps I did : >>>>> >>>>> 1. I have formatted initially my local file system using the ./hadoop >>>>> namenode -format command. I believe this mounts the local file system to >>>>> HDFS. >>>>> 2. Then I configured the hadoop conf files and started ./start-all script. >>>>> 3. Started Pig with a custom pig script which should read hdfs as I >>>>> passed the HADOOP_CONF_DIR as parameter. >>>>> The command was java -cp $PIGDIR/pig.jar:$HADOOP_CONF_DIR >>>>> org.apache.pig.Main script1-hadoop.pig >>>>> >>>>> Please let me know if these step miss something ? >>>>> >>>>> Thanks, >>>>> Rahul >>>>> >>>>> >>>>> On Aug 26, 2010, at 6:33 PM, Jeff Zhang wrote: >>>>> >>>>>> Try to put the hadoop xml configuration file to pig/conf folder >>>>>> >>>>>> >>>>>> >>>>>> On Thu, Aug 26, 2010 at 6:22 PM, rahul <rmalv...@apple.com> wrote: >>>>>>> Hi Jeff, >>>>>>> >>>>>>> I have set the hadoop conf in class path by setting $HADOOP_CONF_DIR >>>>>>> variable. >>>>>>> >>>>>>> But I have both Pig and hadoop running at the same machine, so >>>>>>> localhost should not make a difference. >>>>>>> >>>>>>> So I have used all the default config setting for the core-site.xml, >>>>>>> hdfs-site.xml, mapred-site.xml, as per the hadoop tutorial. >>>>>>> >>>>>>> Please let me know if my understanding is correct ? >>>>>>> >>>>>>> I am attaching the conf files as well : >>>>>>> hdfs-site.xml: >>>>>>> >>>>>>> <?xml version="1.0"?> >>>>>>> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> >>>>>>> >>>>>>> <!-- Put site-specific property overrides in this file. --> >>>>>>> >>>>>>> <configuration> >>>>>>> <property> >>>>>>> <name>fs.default.name</name> >>>>>>> <value>hdfs://localhost:9000</value> >>>>>>> <description>The name of the default file system. A URI whose >>>>>>> scheme and authority determine the FileSystem implementation. The >>>>>>> uri's scheme determines the config property (fs.SCHEME.impl) naming >>>>>>> the FileSystem implementation class. The uri's authority is used to >>>>>>> determine the host, port, etc. for a filesystem.</description> >>>>>>> </property> >>>>>>> >>>>>>> <property> >>>>>>> <name>dfs.replication</name> >>>>>>> <value>1</value> >>>>>>> <description>Default block replication. >>>>>>> The actual number of replications can be specified when the file is >>>>>>> created. >>>>>>> The default is used if replication is not specified in create time. >>>>>>> </description> >>>>>>> </property> >>>>>>> >>>>>>> </configuration> >>>>>>> >>>>>>> core-site.xml >>>>>>> <?xml version="1.0"?> >>>>>>> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> >>>>>>> >>>>>>> <!-- Put site-specific property overrides in this file. --> >>>>>>> >>>>>>> <configuration> >>>>>>> <property> >>>>>>> <name>hadoop.tmp.dir</name> >>>>>>> <value>/Users/rahulmalviya/Documents/Hadoop/hadoop-0.21.0/hadoop-${user.name}</value> >>>>>>> <description>A base for other temporary directories.</description> >>>>>>> </property> >>>>>>> </configuration> >>>>>>> >>>>>>> mapred-site.xml >>>>>>> <?xml version="1.0"?> >>>>>>> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> >>>>>>> >>>>>>> <!-- Put site-specific property overrides in this file. --> >>>>>>> >>>>>>> <configuration> >>>>>>> <property> >>>>>>> <name>mapred.job.tracker</name> >>>>>>> <value>localhost:9001</value> >>>>>>> <description>The host and port that the MapReduce job tracker runs >>>>>>> at. If "local", then jobs are run in-process as a single map >>>>>>> and reduce task. >>>>>>> </description> >>>>>>> </property> >>>>>>> >>>>>>> <property> >>>>>>> <name>mapred.tasktracker.tasks.maximum</name> >>>>>>> <value>8</value> >>>>>>> <description>The maximum number of tasks that will be run >>>>>>> simultaneously by a >>>>>>> a task tracker >>>>>>> </description> >>>>>>> </property> >>>>>>> </configuration> >>>>>>> >>>>>>> Please let me know if there is a issue in my configurations ? Any input >>>>>>> is valuable for me. >>>>>>> >>>>>>> Thanks, >>>>>>> Rahul >>>>>>> >>>>>>> On Aug 26, 2010, at 6:10 PM, Jeff Zhang wrote: >>>>>>> >>>>>>>> Do you put the hadoop conf on classpath ? It seems you are still using >>>>>>>> local file system but conncect Hadoop's JobTracker. >>>>>>>> Make sure you set the correct configuration in core-site.xml >>>>>>>> hdfs-site.xml, mapred-site.xml, and put them on classpath. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Thu, Aug 26, 2010 at 5:32 PM, rahul <rmalv...@apple.com> wrote: >>>>>>>>> Hi , >>>>>>>>> >>>>>>>>> I am trying to integrate Pig with Hadoop for processing of jobs. >>>>>>>>> >>>>>>>>> I am able to run Pig in local mode and Hadoop with streaming api >>>>>>>>> perfectly. >>>>>>>>> >>>>>>>>> But when I try to run Pig with Hadoop I get follwong Error: >>>>>>>>> >>>>>>>>> Pig Stack Trace >>>>>>>>> --------------- >>>>>>>>> ERROR 2116: Unexpected error. Could not validate the output >>>>>>>>> specification for: >>>>>>>>> file:///Users/rahulmalviya/Documents/Pig/dev/main_merged_hdp_out >>>>>>>>> >>>>>>>>> org.apache.pig.impl.plan.PlanValidationException: ERROR 0: An >>>>>>>>> unexpected exception caused the validation to stop >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.PlanValidator.validate(PlanValidator.java:56) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.validators.InputOutputFileValidator.validate(InputOutputFileValidator.java:49) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.validators.InputOutputFileValidator.validate(InputOutputFileValidator.java:37) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.validators.LogicalPlanValidationExecutor.validate(LogicalPlanValidationExecutor.java:89) >>>>>>>>> at org.apache.pig.PigServer.validate(PigServer.java:930) >>>>>>>>> at org.apache.pig.PigServer.compileLp(PigServer.java:910) >>>>>>>>> at org.apache.pig.PigServer.compileLp(PigServer.java:871) >>>>>>>>> at org.apache.pig.PigServer.compileLp(PigServer.java:852) >>>>>>>>> at org.apache.pig.PigServer.execute(PigServer.java:816) >>>>>>>>> at org.apache.pig.PigServer.access$100(PigServer.java:105) >>>>>>>>> at org.apache.pig.PigServer$Graph.execute(PigServer.java:1080) >>>>>>>>> at org.apache.pig.PigServer.executeBatch(PigServer.java:288) >>>>>>>>> at >>>>>>>>> org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:109) >>>>>>>>> at >>>>>>>>> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:166) >>>>>>>>> at >>>>>>>>> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:138) >>>>>>>>> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:89) >>>>>>>>> at org.apache.pig.Main.main(Main.java:391) >>>>>>>>> Caused by: org.apache.pig.impl.plan.PlanValidationException: ERROR >>>>>>>>> 2116: Unexpected error. Could not validate the output specification >>>>>>>>> for: file:///Users/rahulmalviya/Documents/Pig/dev/main_merged_hdp_out >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.validators.InputOutputFileVisitor.visit(InputOutputFileVisitor.java:93) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.LOStore.visit(LOStore.java:140) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.LOStore.visit(LOStore.java:37) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:69) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:69) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.plan.PlanValidator.validate(PlanValidator.java:50) >>>>>>>>> ... 16 more >>>>>>>>> Caused by: java.io.IOException: Call to localhost/127.0.0.1:9001 >>>>>>>>> failed on local exception: java.io.EOFException >>>>>>>>> at org.apache.hadoop.ipc.Client.wrapException(Client.java:775) >>>>>>>>> at org.apache.hadoop.ipc.Client.call(Client.java:743) >>>>>>>>> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220) >>>>>>>>> at org.apache.hadoop.mapred.$Proxy0.getProtocolVersion(Unknown >>>>>>>>> Source) >>>>>>>>> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359) >>>>>>>>> at >>>>>>>>> org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:429) >>>>>>>>> at org.apache.hadoop.mapred.JobClient.init(JobClient.java:423) >>>>>>>>> at >>>>>>>>> org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:410) >>>>>>>>> at org.apache.hadoop.mapreduce.Job.<init>(Job.java:50) >>>>>>>>> at >>>>>>>>> org.apache.pig.impl.logicalLayer.validators.InputOutputFileVisitor.visit(InputOutputFileVisitor.java:89) >>>>>>>>> ... 24 more >>>>>>>>> Caused by: java.io.EOFException >>>>>>>>> at java.io.DataInputStream.readInt(DataInputStream.java:375) >>>>>>>>> at >>>>>>>>> org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:501) >>>>>>>>> at org.apache.hadoop.ipc.Client$Connection.run(Client.java:446) >>>>>>>>> ================================================================================ >>>>>>>>> >>>>>>>>> Did anyone got the same error. I think it related to connection >>>>>>>>> between pig and hadoop. >>>>>>>>> >>>>>>>>> Can someone tell me how to connect Pig and hadoop. >>>>>>>>> >>>>>>>>> Thanks. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Best Regards >>>>>>>> >>>>>>>> Jeff Zhang >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Best Regards >>>>>> >>>>>> Jeff Zhang >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> Best Regards >>>> >>>> Jeff Zhang >>> >>> >> >> >> >> -- >> Best Regards >> >> Jeff Zhang > > -- Best Regards Jeff Zhang
