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Real-time Query for Hadoop
C++ Java Python Thrift C Shell Other

IMPALA-1735: ExpandRmReservation only check parent pools with limit

MemTracker::ExpandRmReservation was checking to make sure that
the expanded reservation does not exceed the limit for all parent
trackers, but it should only be checking parent trackers with
limits.

This was reproducing consistently on the 6-node RM cluster when
running TPCDS q46 which passes with this fix.

Change-Id: If65d474cef1bb71a3d2de3660bc8401e8abbec6d
Reviewed-on: http://gerrit.cloudera.org:8080/494
Reviewed-by: Dan Hecht <dhecht@cloudera.com>
Tested-by: Internal Jenkins
latest commit c239c9121f
@mjacobs mjacobs authored Internal Jenkins committed

README.md

Welcome to Impala

Lightning-fast, distributed SQL queries for petabytes of data stored in Apache Hadoop clusters.

Impala is a modern, massively-distributed, massively-parallel, C++ query engine that lets you analyze, transform and combine data from a variety of data sources:

  • Best of breed performance and scalability.
  • Support for data stored in HDFS, Apache HBase and Amazon S3.
  • Wide analytic SQL support, including window functions and subqueries.
  • On-the-fly code generation using LLVM to generate CPU-efficient code tailored specifically to each individual query.
  • Support for the most commonly-used Hadoop file formats, including the Apache Parquet (incubating) project.
  • Apache-licensed, 100% open source.

More about Impala

To learn more about Impala as a business user, or to try Impala live or in a VM, please visit the Impala homepage.

If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.

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