Kathy Sun has uploaded a new patch set (#13). Change subject: System Database (preview for frontend) ......................................................................
System Database (preview for frontend) Since this is just a preview and not the final patch, request reviewers to please focus their comments more on the design aspect. This is to expose metadata (current status of impala, e.g impala-metrics) into virtual table, so that users could query them via sql. You can run impala-shell.sh and type query like: select * from system_database.scheduler; select name, value, description from information_schema.scheduler; Change-Id: I7adbeb45220c468e43b424d70c30b952f6cec2cd --- M be/src/exec/CMakeLists.txt M be/src/exec/exec-node.cc A be/src/exec/system-table-scan-node.cc A be/src/exec/system-table-scan-node.h M be/src/runtime/coordinator.cc M be/src/runtime/descriptors.cc M be/src/runtime/descriptors.h M be/src/scheduling/simple-scheduler.cc M be/src/util/metrics.h M common/thrift/CatalogObjects.thrift M common/thrift/Descriptors.thrift M common/thrift/PlanNodes.thrift M fe/src/main/java/com/cloudera/impala/analysis/AnalysisContext.java M fe/src/main/java/com/cloudera/impala/analysis/Analyzer.java M fe/src/main/java/com/cloudera/impala/analysis/DescriptorTable.java M fe/src/main/java/com/cloudera/impala/analysis/TupleDescriptor.java M fe/src/main/java/com/cloudera/impala/catalog/Catalog.java A fe/src/main/java/com/cloudera/impala/catalog/SystemDb.java A fe/src/main/java/com/cloudera/impala/catalog/SystemTable.java M fe/src/main/java/com/cloudera/impala/planner/SingleNodePlanner.java A fe/src/main/java/com/cloudera/impala/planner/SystemTableScanNode.java M fe/src/main/java/com/cloudera/impala/service/Frontend.java M fe/src/test/java/com/cloudera/impala/analysis/AnalyzeStmtsTest.java M fe/src/test/java/com/cloudera/impala/planner/PlannerTest.java A testdata/workloads/functional-planner/queries/PlannerTest/system-db.test 25 files changed, 736 insertions(+), 13 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/63/3863/13 -- To view, visit http://gerrit.cloudera.org:8080/3863 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newpatchset Gerrit-Change-Id: I7adbeb45220c468e43b424d70c30b952f6cec2cd Gerrit-PatchSet: 13 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Kathy Sun <[email protected]> Gerrit-Reviewer: Kathy Sun <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]>
