I find a warning from my container log like this below, Anyone meet the problem?
2013-05-08 13:23:59,622 WARN [main] org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 2013-05-08 13:23:59,732 INFO [main] org.apache.hadoop.util.Shell: setsid exited with exit code 0 2013-05-08 13:23:59,824 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties 2013-05-08 13:23:59,909 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s). 2013-05-08 13:23:59,909 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started 2013-05-08 13:23:59,933 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens: 2013-05-08 13:23:59,933 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1367985414547_0009, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@7ca522a6) 2013-05-08 13:24:00,009 INFO [main] org.apache.hadoop.mapred.YarnChild: Sleeping for 0ms before retrying again. Got null now. 2013-05-08 13:24:01,263 INFO [main] org.apache.hadoop.mapred.YarnChild: mapreduce.cluster.local.dir for child: /data/hustnn/local/usercache/hustnn/appcache/application_1367985414547_0009 2013-05-08 13:24:01,480 WARN [main] org.apache.hadoop.conf.Configuration: mapred.task.id is deprecated. Instead, use mapreduce.task.attempt.id 2013-05-08 13:24:01,576 WARN [main] org.apache.hadoop.conf.Configuration: mapred.task.is.map is deprecated. Instead, use mapreduce.task.ismap 2013-05-08 13:24:01,612 WARN [main] org.apache.hadoop.conf.Configuration: mapred.tip.id is deprecated. Instead, use mapreduce.task.id 2013-05-08 13:24:01,613 WARN [main] org.apache.hadoop.conf.Configuration: mapred.task.partition is deprecated. Instead, use mapreduce.task.partition 2013-05-08 13:24:01,613 WARN [main] org.apache.hadoop.conf.Configuration: mapred.local.dir is deprecated. Instead, use mapreduce.cluster.local.dir 2013-05-08 13:24:01,694 WARN [main] org.apache.hadoop.conf.Configuration: job.local.dir is deprecated. Instead, use mapreduce.job.local.dir 2013-05-08 13:24:01,694 WARN [main] org.apache.hadoop.conf.Configuration: mapred.job.id is deprecated. Instead, use mapreduce.job.id 2013-05-08 13:24:02,329 WARN [main] org.apache.hadoop.conf.Configuration: session.id is deprecated. Instead, use dfs.metrics.session-id 2013-05-08 13:24:03,184 INFO [main] org.apache.hadoop.mapred.Task: Using ResourceCalculatorProcessTree : [ ] 2013-05-08 13:24:03,913 INFO [main] org.apache.hadoop.mapred.MapTask: Processing split: hdfs://155.69.148.21:18000/terasort-23/part-m-00001 from 0 length 256000000 2013-05-08 13:24:03,928 INFO [main] org.apache.hadoop.mapred.MapTask: Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer 2013-05-08 13:24:04,196 INFO [main] org.apache.hadoop.mapred.MapTask: (EQUATOR) 0 kvi 134217724(536870896) 2013-05-08 13:24:04,196 INFO [main] org.apache.hadoop.mapred.MapTask: mapreduce.task.io.sort.mb: 512 2013-05-08 13:24:04,196 INFO [main] org.apache.hadoop.mapred.MapTask: soft limit at 429496736 2013-05-08 13:24:04,196 INFO [main] org.apache.hadoop.mapred.MapTask: bufstart = 0; bufvoid = 536870912 2013-05-08 13:24:04,196 INFO [main] org.apache.hadoop.mapred.MapTask: kvstart = 134217724; length = 33554432 2013-05-08 13:25:10,643 INFO [main] org.apache.hadoop.mapred.MapTask: Starting flush of map output 2013-05-08 13:25:10,821 INFO [main] org.apache.hadoop.mapred.MapTask: Spilling map output 2013-05-08 13:25:10,821 INFO [main] org.apache.hadoop.mapred.MapTask: bufstart = 0; bufend = 261120000; bufvoid = 536870912 2013-05-08 13:25:10,821 INFO [main] org.apache.hadoop.mapred.MapTask: kvstart = 134217724(536870896); kvend = 123977728(495910912); length = 10239997/33554432 2013-05-08 13:25:42,934 INFO [main] org.apache.hadoop.mapred.MapTask: Finished spill 0 2013-05-08 13:25:43,219 INFO [main] org.apache.hadoop.mapred.Task: Task:attempt_1367985414547_0009_m_000001_0 is done. And is in the process of committing 2013-05-08 13:26:35,311 WARN [main] org.apache.hadoop.yarn.util.ProcfsBasedProcessTree: Error reading the stream java.io.IOException: No such process 2013-05-08 13:26:35,319 INFO [main] org.apache.hadoop.mapred.Task: Task 'attempt_1367985414547_0009_m_000001_0' done. 2013-05-08 13:26:35,422 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping MapTask metrics system... -- *Sincerely,* *Zhaojie* * *
