1. 总的默认的Xmx是1000M 在hadoop启动脚本里 JAVA_HEAP_MAX=-Xmx1000m2. 改 这个文件也可以改总的Xmx ~/hadoop/conf/hadoop-env.sh # The maximum amount of heap to use, in MB. Default is 1000. # export HADOOP...【阅读全文】
*.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31*.sink.ganglia.period=10# default for supportsparse is false*.sink.ganglia.supportsparse=true*.sink.ganglia.slope=jvm.metrics.gcCount=zero,jvm.metrics.memHeapUsedM=both*.sink.ganglia.dmax=jvm.metrics.threadsBlocked=70,jvm...【阅读全文】
ava HotSpot(TM) 64-Bit Server VM warning: Insufficient space for shared memory file: /tmp/hsperfdata_hadoop/2180此原因是由于磁盘满了造成的http://blog.sina.com.cn/s/blog_6e5e78bf0101nuyt.html【阅读全文】