HBase调优

调优组件	调优项	参数含义	参数值
HDFS	dfs.namenode.service.handler.count	namenodec处理处理RPC数量	100
	dfs.datanode.handler.count	datanode处理处理RPC数量	100
	dfs.datanode.max.transfer.threads	DataNode分配最大线程数处理 DataNode数据的输入输出	12288
Zookeeper	tickTime	客户端操作Zookeeper超时时间	9000
	maxClientCnxns	Zookeeper允许最大客户端连接数	120
jvm	-Xmx -Xms	分配jvm堆内存大小	16G
	-XX:PermSize	持久代大小	512m
	-XX:CMSInitiatingOccupancyFraction	开始CMS垃圾回收的阈值	60
RegionServer	zookeeper.session.timeout	ZooKeeper会话超时时间间隔	90000
	hbase.regionserver.handler.count	regionserver处理RPC数量	100
	hfile.block.cache.size	读缓存BlockCache占用堆内存大小	0.4
	hbase.hstore.blockingStoreFiles	StoreFiles大小	2100000000
	hbase.hregion.majorcompaction	majorcompaction周期	0

HBase HRegionServer jvm配置参考

export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -XX:PermSize=6g -XX:+UseConcMarkSweepGC -XX:MaxPermSize=6g -Xmx16g -Xms16g -Xmn6g -verbose:gc -
Xloggc:/usr/local/fqlhadoop/logs/hbase/hbase.gc.log -XX:ErrorFile=/usr/local/fqlhadoop/logs/hbase/hs_err_pid.log -XX:+UseParNewGC -XX:+PrintGCDateStamps
 -XX:+PrintGCDetails -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=60 -XX:+UseCMSCompactAtFullCollection -X
X:CMSFullGCsBeforeCompaction=0 -XX:SurvivorRatio=4 -XX:CMSMaxAbortablePrecleanTime=2000 -XX:+CMSClassUnloadingEnabled -XX:+DisableExplicitGC  -XX:NewRat
io=3 -XX:+CMSParallelRemarkEnabled"