Writes (HBase Server perspective) Request the location of the META system table from ZooKeeper. Cache location of META system table for future requests. Request the location of the RegionServer hosting the desired row key from the META system table. Cache location of the RegionServer for future ...
When the Put method is used to load large amounts of data to HBase, data loading and query will be slow. The size of an HFile generated after data loading is similar to the size of HDFS blocks. Put: The size of the data loaded to one Region at a time is smaller than half the ...
curl -u admin:admin -H "X-Requested-By: ambari" -X PUT 'http://10.90.3.101:8080/api/v1/clusters/hdp_cluster/components?ServiceComponentInfo/component_name.in(APP_TIMELINE_SERVER,DATANODE,HBASE_MASTER,HBASE_REGIONSERVER,HISTORYSERVER,HIVE_METASTORE,HIVE_SERVER,MYSQL_SERVER,NAMENODE,NODEMANAGER,RE...
It is set when we want have connection sharing going on -- reuse of zk connection, and cached region locations, established regionserver connections, etc. When connections are shared, we have reference counting going on and will only do full cleanup when no more users of an HConnectionImplement...
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