Hey Edward, thanks for responding but i try to ping all the *data-node* from *name-node* and they all are responding..
i won't be able to figure it out where the problem persist. query is running fine when i dont use any map reduce.. but while using and map tasks...its get stuck into that.. Regards Vikas Srivastava 9560885900 On Tue, Jul 19, 2011 at 7:03 PM, Edward Capriolo <edlinuxg...@gmail.com>wrote: > It must be a hostname or DNS problem. Use dig and ping to find out what is > wrong. > > On Tue, Jul 19, 2011 at 9:05 AM, Vikas Srivastava < > vikas.srivast...@one97.net> wrote: > >> >> >> On Tue, Jul 19, 2011 at 6:29 PM, Vikas Srivastava < >> vikas.srivast...@one97.net> wrote: >> >>> >>> HI Team, >>>> >>>> >>>> we are using 1 namenode with 11 Datanode each of (16GB ram and 1.4 tb >>>> hdd) >>>> >>>> i m getting this error while running any query , simple its not working >>>> when we use any map tasks. >>>> >>>> and we are using hive on hadoop. >>>> >>>> Total MapReduce jobs = 1 >>>> Launching Job 1 out of 1 >>>> Number of reduce tasks not specified. Estimated from input data size: >>>> 120 >>>> In order to change the average load for a reducer (in bytes): >>>> set hive.exec.reducers.bytes.per.reducer=<number> >>>> In order to limit the maximum number of reducers: >>>> set hive.exec.reducers.max=<number> >>>> In order to set a constant number of reducers: >>>> set mapred.reduce.tasks=<number> >>>> Starting Job = job_201107191711_0013, Tracking URL = >>>> http://hadoopname:50030/jobdetails.jsp?jobid=job_201107191711_0013 >>>> Kill Command = /home/hadoop/hadoop/bin/../bin/hadoop job >>>> -Dmapred.job.tracker=10.0.3.28:9001 -kill job_201107191711_0013 >>>> 2011-07-19 18:06:34,973 Stage-1 map = 100%, reduce = 100% >>>> Ended Job = job_201107191711_0013 with errors >>>> java.lang.RuntimeException: Error while reading from task log url >>>> at >>>> org.apache.hadoop.hive.ql.exec.errors.TaskLogProcessor.getErrors(TaskLogProcessor.java:130) >>>> at >>>> org.apache.hadoop.hive.ql.exec.ExecDriver.showJobFailDebugInfo(ExecDriver.java:889) >>>> at >>>> org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:680) >>>> at >>>> org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:123) >>>> at >>>> org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:130) >>>> at >>>> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57) >>>> at >>>> org.apache.hadoop.hive.ql.exec.TaskRunner.run(TaskRunner.java:47) >>>> Caused by: java.net.UnknownHostException: hadoopdata3 >>>> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177) >>>> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) >>>> at java.net.Socket.connect(Socket.java:519) >>>> at java.net.Socket.connect(Socket.java:469) >>>> at sun.net.NetworkClient.doConnect(NetworkClient.java:163) >>>> at sun.net.www.http.HttpClient.openServer(HttpClient.java:394) >>>> at sun.net.www.http.HttpClient.openServer(HttpClient.java:529) >>>> at sun.net.www.http.HttpClient.<init>(HttpClient.java:233) >>>> at sun.net.www.http.HttpClient.New(HttpClient.java:306) >>>> at sun.net.www.http.HttpClient.New(HttpClient.java:323) >>>> at >>>> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:837) >>>> at >>>> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:778) >>>> at >>>> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:703) >>>> at >>>> sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1026) >>>> at java.net.URL.openStream(URL.java:1009) >>>> at >>>> org.apache.hadoop.hive.ql.exec.errors.TaskLogProcessor.getErrors(TaskLogProcessor.java:120) >>>> ... 6 more >>>> Ended Job = job_201107191711_0013 with exception >>>> 'java.lang.RuntimeException(Error while reading from task log url)' >>>> FAILED: Execution Error, return code 1 from >>>> org.apache.hadoop.hive.ql.exec.MapRedTask >>>> >>>> -- >>>> With Regards >>>> Vikas Srivastava >>>> >>>> DWH & Analytics Team >>>> Mob:+91 9560885900 >>>> One97 | Let's get talking ! >>>> >>>> >>> >>> >>> -- >>> With Regards >>> Vikas Srivastava >>> >>> DWH & Analytics Team >>> Mob:+91 9560885900 >>> One97 | Let's get talking ! >>> >>> >> >> >> -- >> With Regards >> Vikas Srivastava >> >> DWH & Analytics Team >> Mob:+91 9560885900 >> One97 | Let's get talking ! >> >> > -- With Regards Vikas Srivastava DWH & Analytics Team Mob:+91 9560885900 One97 | Let's get talking !
