Hello all,
In the second step ,I get the message ,then I download the job.jar and
find the org.apache.kylin.common.mr.KylinMapper class. In $kylin_home/lib and
$kylin_home/tomcat/webapp/kylin/WEB-INFO/lib，The class exists.
2015-12-24 09:39:38,977 INFO [RMCommunicator Allocator]
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating
schedule, headroom=<memory:0, vCores:-140>
2015-12-24 09:39:38,977 INFO [RMCommunicator Allocator]
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start
threshold not met. completedMapsForReduceSlowstart 13
2015-12-24 09:39:39,156 FATAL [IPC Server handler 11 on 24813]
org.apache.hadoop.mapred.TaskAttemptListenerImpl: Task:
attempt_1448955124847_0374_m_000100_0 - exited :
java.lang.ClassNotFoundException: org.apache.kylin.common.mr.KylinMapper
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at
org.apache.hadoop.conf.Configuration.getClassByNameOrNull(Configuration.java:2013)
at
org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1978)
at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2072)
at
org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:186)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:742)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
