Dear Wiki user, You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.
The following page has been changed by udanax: http://wiki.apache.org/hadoop/Hbase/HbaseShell/HQL ------------------------------------------------------------------------------ == Parallel Execution Features == - === Parallel Query === + === Query === Parallel execution can significantly reduce the elapsed time for large queries, but it doesn't apply to every query. {{{ @@ -47, +47 @@ hql > alter table tbl_name noparallel; }}} - === Parallel Data Loading === + === Data Loading === HQL Loader utility loads data into Hbase tables from external files. If you have a large amount of data to load, HQL Loader's parallel support can dramatically reduce the elapsed time needed to perform that load. {{{ @@ -58, +58 @@ --> (column1[, column2, ...]); }}} + === Data Dumping === +
