Hi all, I am using hbase-0.19.1 and hadoop-0.19. My cluster have 5+1 nodes, and there are about 512 regions in HBase (256MB per region).
But I found the blocks in HDFS is very unbalanced. Following is the status from HDFS web GUI. (Node: I don't know if this mailing list can display html!) HDFS blocks: node1 509036 blocks node2 157937 blocks node3 15783 blocks node4 15117 blocks node5 20158 blocks But my HBase regions are very balanced. node1 88 regions node2 108 regions node3 111 regions node4 102 regions node5 105 regions NodeLast ContactAdmin StateConfigured Capacity (GB)Used (GB)Non DFS Used (GB)Remaining (GB)Used (%)Used (%)Remaining (%)Blocksnd1-rack0-cloud<http://nd1-rack0-cloud:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F> 0In Service822.8578.6743.28200.8670.3324.41509036nd2-rack0-cloud<http://nd2-rack0-cloud:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F> 0In Service822.8190.0242.96589.8223.0971.68157937nd3-rack0-cloud<http://nd3-rack0-cloud:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F> 0In Service822.851.9542.61728.246.3188.5115783nd4-rack0-cloud<http://nd4-rack0-cloud:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F> 6In Service822.846.1942.84733.775.6189.1815117nd5-rack0-cloud<http://nd5-rack0-cloud:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F> 1In Service1215.6152.3762.911100.324.3190.5220158 But my HBase regions are very balanced. AddressStart CodeLoadnd1-rack0-cloud:60020 <http://nd1-rack0-cloud:60030/> 1237967027050requests=383, regions=88, usedHeap=978, maxHeap=1991 nd2-rack0-cloud:60020 <http://nd2-rack0-cloud:60030/>1237788871362requests=422, regions=108, usedHeap=1433, maxHeap=1991nd3-rack0-cloud:60020<http://nd3-rack0-cloud:60030/> 1237788881667requests=962, regions=111, usedHeap=1534, maxHeap=1991 nd4-rack0-cloud:60020 <http://nd4-rack0-cloud:60030/>1237788859541requests=369, regions=102, usedHeap=1059, maxHeap=1991nd5-rack0-cloud:60020<http://nd5-rack0-cloud:60030/> 1237788899331requests=384, regions=105, usedHeap=1535, maxHeap=1983Total:servers: 5 requests=2520, regions=514
