I change my mapreduce.map.java.opts 's value from -Djava.net.preferIPv4Stack=true -Xmx825955249 to -Djava.net.preferIPv4Stack=true -XX:+UseG1GC -Xmx825955249
When I run query by hive 1.1.0+tez0.53 in hadoop 2.5.0. set mapreduce.framework.name=yarn-tez; set hive.execution.engine=tez; select userid,count(*) from u_data group by userid order by userid; The query return error. I found error : 2015-05-29 16:02:39,064 WARN [AsyncDispatcher event handler] container.AMContainerImpl: Container container_1432885077153_0004_01_000005 finished with diagnostics set to [Container failed. Exception from container-launch. Container id: container_1432885077153_0004_01_000005 Exit code: 1 Stack trace: ExitCodeException exitCode=1: at org.apache.hadoop.util.Shell.runCommand(Shell.java:538) at org.apache.hadoop.util.Shell.run(Shell.java:455) at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:702) at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:196) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:299) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:81) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) But I try hive> set hive.execution.engine=mr; hive> set mapreduce.framework.name=yarn; hive> select userid,count(*) from u_data group by userid order by userid limit 1; Query ID = hdfs_20150529160606_d550bca4-0341-4eb0-aace-a9018bfbb7a9 Total jobs = 2 Launching Job 1 out of 2 Number of reduce tasks not specified. Estimated from input data size: 1 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 mapreduce.job.reduces=<number> Starting Job = job_1432885077153_0005, Tracking URL = http://localhost:8088/proxy/application_1432885077153_0005/ Kill Command = /opt/cloudera/parcels/CDH-5.2.0-1.cdh5.2.0.p0.36/lib/hadoop/bin/hadoop job -kill job_1432885077153_0005 Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 1 2015-05-29 16:06:34,863 Stage-1 map = 0%, reduce = 0% 2015-05-29 16:06:40,066 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 1.72 sec 2015-05-29 16:06:48,366 Stage-1 map = 100%, reduce = 100%, Cumulative CPU 2.96 sec MapReduce Total cumulative CPU time: 2 seconds 960 msec Ended Job = job_1432885077153_0005 Launching Job 2 out of 2 Number of reduce tasks determined at compile time: 1 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 mapreduce.job.reduces=<number> Starting Job = job_1432885077153_0006, Tracking URL = http://localhost:8088/proxy/application_1432885077153_0006/ Kill Command = /opt/cloudera/parcels/CDH-5.2.0-1.cdh5.2.0.p0.36/lib/hadoop/bin/hadoop job -kill job_1432885077153_0006 Hadoop job information for Stage-2: number of mappers: 1; number of reducers: 1 2015-05-29 16:07:03,333 Stage-2 map = 0%, reduce = 0% 2015-05-29 16:07:07,485 Stage-2 map = 100%, reduce = 0%, Cumulative CPU 1.2 sec 2015-05-29 16:07:15,739 Stage-2 map = 100%, reduce = 100%, Cumulative CPU 2.35 sec MapReduce Total cumulative CPU time: 2 seconds 350 msec Ended Job = job_1432885077153_0006 MapReduce Jobs Launched: Stage-Stage-1: Map: 1 Reduce: 1 Cumulative CPU: 2.96 sec HDFS Read: 1985399 HDFS Write: 20068 SUCCESS Stage-Stage-2: Map: 1 Reduce: 1 Cumulative CPU: 2.35 sec HDFS Read: 24481 HDFS Write: 6 SUCCESS Total MapReduce CPU Time Spent: 5 seconds 310 msec That's ok. r7raul1...@163.com
