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asterix-gerrit.ics.uci.edu / asterixdb / 9e75e24d765f314fcb5575d276121ee885965555
commit9e75e24d765f314fcb5575d276121ee885965555[log] [tgz]
authorMurtadha Hubail <mhubail@apache.org>Mon Sep 10 23:04:19 2018 +0300
committerMichael Blow <mblow@apache.org>Mon Sep 10 19:25:20 2018 -0700
tree6e106725d8987384ab721110b2c7621a081386e1
parent7796749d9eae7f8fb6aa59f177167143686beabd [diff]
[NO ISSUE][TX] Create New Log File Before Deleting Old Files

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Ensure next log file is created after a sharp check
  point before deleting old files. This is to prevent
  the case if a crash happens right after deleting the
  old files but before creating the new one, then the
  next time the system starts up, it will start with
  log file id 0 which is wrong.
- Log the details of latest index checkpoint when the
  low watermark of the new checkpoint is less than the
  low watermakr of the latest checkpoint.

Change-Id: I4817f697b43daff55726909ab074ec30a1c224ce
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2959
Reviewed-by: Michael Blow <mblow@apache.org>
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
4 files changed
tree: 6e106725d8987384ab721110b2c7621a081386e1
  1. .gitattributes
  2. .gitignore
  3. README.md
  4. asterixdb/
  5. build.xml
  6. hyracks-fullstack/
  7. pom.xml
README.md

What is AsterixDB?

AsterixDB is a BDMS (Big Data Management System) with a rich feature set that sets it apart from other Big Data platforms. Its feature set makes it well-suited to modern needs such as web data warehousing and social data storage and analysis. AsterixDB has:

  • Data model
    A semistructured NoSQL style data model (ADM) resulting from extending JSON with object database ideas

  • Query languages
    Two expressive and declarative query languages (SQL++ and AQL) that support a broad range of queries and analysis over semistructured data

  • Scalability
    A parallel runtime query execution engine, Apache Hyracks, that has been scale-tested on up to 1000+ cores and 500+ disks

  • Native storage
    Partitioned LSM-based data storage and indexing to support efficient ingestion and management of semistructured data

  • External storage
    Support for query access to externally stored data (e.g., data in HDFS) as well as to data stored natively by AsterixDB

  • Data types
    A rich set of primitive data types, including spatial and temporal data in addition to integer, floating point, and textual data

  • Indexing
    Secondary indexing options that include B+ trees, R trees, and inverted keyword (exact and fuzzy) index types

  • Transactions
    Basic transactional (concurrency and recovery) capabilities akin to those of a NoSQL store

Learn more about AsterixDB at its website.

Build from source

To build AsterixDB from source, you should have a platform with the following:

  • A Unix-ish environment (Linux, OS X, will all do).
  • git
  • Maven 3.3.9 or newer.
  • Oracle JDK 8 or newer.

Instructions for building the master:

  • Checkout AsterixDB master:

      $git clone https://github.com/apache/asterixdb.git

  • Build AsterixDB master:

      $cd asterixdb
  $mvn clean package -DskipTests

Run the build on your machine

Here are steps to get AsterixDB running on your local machine:

  • Start a single-machine AsterixDB instance:

      $cd asterixdb/asterix-server/target/asterix-server-*-binary-assembly/
  $./opt/local/bin/start-sample-cluster.sh

  • Good to go and run queries in your browser at:

      http://localhost:19001

  • Read more documentation to learn the data model, query language, and how to create a cluster instance.

Documentation

Community support