2017-03-30 14:12:34,329 FATAL [main] org.apache.hadoop.mapred.YarnChild: Error running child : java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.apache.xerces.dom.DeferredDocumentImpl.getNodeObject(Unknown Source)
at org.apache.xerces.dom.DeferredDocumentImpl.synchronizeChildren(Unknown Source)
at org.apache.xerces.dom.DeferredElementImpl.synchronizeChildren(Unknown Source)
at org.apache.xerces.dom.ElementImpl.normalize(Unknown Source)
at org.apache.xerces.dom.ElementImpl.normalize(Unknown Source)
at com.mbrdi.xdl.powertrain.MR_XDLogFileAnalysis_ProcessingLogFiles_mapper.map(MR_XDLogFileAnalysis_ProcessingLogFiles_mapper.java:249)
at com.mbrdi.xdl.powertrain.MR_XDLogFileAnalysis_ProcessingLogFiles_mapper.map(MR_XDLogFileAnalysis_ProcessingLogFiles_mapper.java:46)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1724)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
I was getting this issue in one of the cluster while trying to read an xml file in a mapreduce. So, i used below properties in driver code.
config.set("mapreduce.map.memory.mb","10240");
config.set("mapreduce.map.java.opts","-Xmx8192m");
config.set("mapreduce.reduce.memory.mb","10240");
config.set("mapreduce.reduce.java.opts","-Xmx8192m");
config.set("mapreduce.task.io.sort.mb","1792");
config.set("yarn.scheduler.minimum-allocation-mb","10240");
config.set("yarn.scheduler.maximum-allocation-mb","184320");
config.set("yarn.nodemanager.resource.memory-mb","184320");
config.set("yarn.app.mapreduce.am.resource.mb","10240");
config.set("yarn.app.mapreduce.am.command-opts","-Xmx8192m");
and the code was working
In another cluster, i am not able to fix the error. Is there any property I am missing?
