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(Updated March 17, 2015, 3:51 p.m.) Review request for drill and Venki Korukanti. Changes ------- private static finals. Repository: drill-git Description ------- DRILL-2275: Added support to allow for querying cluster state information. + If table isDistributed(), BatchCreator and SystemTableScan allow for a distributed query. + SystemRecordReader reads SystemRecords. + There is now a generic data type for static tables. + GroupScan can enforce width to be maximum width on ExcessiveExchangeRemover. + GroupScan has minimum width for SimpleParallelizer. Diffs (updated) ----- common/src/main/java/org/apache/drill/common/JSONOptions.java 64e6d52 exec/java-exec/src/main/java/org/apache/drill/exec/physical/base/AbstractGroupScan.java 276ecb5 exec/java-exec/src/main/java/org/apache/drill/exec/physical/base/GroupScan.java 23860a3 exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/ParallelizationInfo.java 75a009e exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/SimpleParallelizer.java f8d1803 exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Stats.java e61b38f exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/StatsCollector.java 1f56556 exec/java-exec/src/main/java/org/apache/drill/exec/planner/physical/visitor/ExcessiveExchangeIdentifier.java a237014 exec/java-exec/src/main/java/org/apache/drill/exec/store/RecordDataType.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/store/pojo/PojoDataType.java c1e64e6 exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/MemoryRecord.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/StaticDrillTable.java c1e8dd1 exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemRecord.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemRecordReader.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTable.java 0bf2156 exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTableBatchCreator.java a1bec1e exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTablePlugin.java 2c70fd4 exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTablePluginConfig.java 93fe68e exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTableScan.java cdd0d18 exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/ThreadsRecord.java PRE-CREATION exec/java-exec/src/test/java/org/apache/drill/exec/store/sys/TestSystemTable.java c1803bc Diff: https://reviews.apache.org/r/31938/diff/ Testing ------- Tested on 3-node cluster and in embedded mode. ``` > select * from sys.memory; +------------+--------------+------------+---------------------+ | host_name | user_port | total_memory | heap_size | direct_alloc_memory | +------------+--------------+------------+---------------------+ | perfnode206.perf.lab | 31010 | 1073741824 | 395823432 | 5000000 | | perfnode208.perf.lab | 31010 | 1073741824 | 337127496 | 2000000 | | perfnode207.perf.lab | 31010 | 1073741824 | 289272760 | 2000000 | +------------+--------------+------------+---------------------+ ``` Thanks, Sudheesh Katkam
