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asterix-gerrit.ics.uci.edu / asterixdb / a3b2ab489fda346d4c214de71d5c01d4f1ad7d91
commita3b2ab489fda346d4c214de71d5c01d4f1ad7d91[log] [tgz]
authorIan Maxon <imaxon@apache.org>Fri Oct 09 17:47:32 2015 -0700
committerIan Maxon <imaxon@apache.org>Tue Oct 13 17:58:53 2015 -0700
tree19aba56bd875a8839d8a300f78097f5f52b846f1
parente61cc67671b431a28fb6876dad09581c24caa131 [diff]
ASTERIXDB-1045: Log analysis fixes

-Avoid using exceptions for control flow in LogRecord
-Rename LogPage and ilk to LogBuffer
-Busywait on read() to fill entire buffer for fillLogBuffer rather than failing
-Distinguish between log truncation and checksum corruption

TODOs:
- Log IO and parsing still happen in lock-step.
- Busywaiting for read to return something other than 0 is unfortunate

Change-Id: I1658e938eb0f199f748407361ffee4833aac661c
Reviewed-on: https://asterix-gerrit.ics.uci.edu/289
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Young-Seok Kim <kisskys@gmail.com>
Reviewed-by: Murtadha Hubail <hubailmor@gmail.com>
8 files changed
tree: 19aba56bd875a8839d8a300f78097f5f52b846f1
  1. .gitattributes
  2. .gitignore
  3. DISCLAIMER
  4. LICENSE.txt
  5. NOTICE
  6. README.md
  7. asterix-algebra/
  8. asterix-app/
  9. asterix-aql/
  10. asterix-benchmarks/
  11. asterix-common/
  12. asterix-doc/
  13. asterix-docker/
  14. asterix-events/
  15. asterix-examples/
  16. asterix-external-data/
  17. asterix-fuzzyjoin/
  18. asterix-installer/
  19. asterix-maven-plugins/
  20. asterix-metadata/
  21. asterix-om/
  22. asterix-runtime/
  23. asterix-server/
  24. asterix-test-framework/
  25. asterix-tools/
  26. asterix-transactions/
  27. asterix-yarn/
  28. build.xml
  29. pom.xml
  30. src/
  31. tlp/
README.md

#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:

  • A semistructured NoSQL style data model (ADM) resulting from extending JSON with object database ideas
  • An expressive and declarative query language (AQL) that supports a broad range of queries and analysis over semistructured data
  • A parallel runtime query execution engine, Hyracks, that has been scale-tested on up to 1000+ cores and 500+ disks
  • Partitioned LSM-based data storage and indexing to support efficient ingestion and management of semistructured data
  • Support for query access to externally stored data (e.g., data in HDFS) as well as to data stored natively by AsterixDB
  • A rich set of primitive data types, including spatial and temporal data in addition to integer, floating point, and textual data
  • Secondary indexing options that include B+ trees, R trees, and inverted keyword (exact and fuzzy) index types
  • Support for fuzzy and spatial queries as well as for more traditional parametric queries
  • Basic transactional (concurrency and recovery) capabilities akin to those of a NoSQL store

Learn more about AsterixDB at [http://asterixdb.ics.uci.edu/] (http://asterixdb.ics.uci.edu/)

##Building AsterixDB

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 3.1.1 or newer.
  • Java 7 or newer.

Additionally to run all the integration tests you should be running sshd locally, and have passwordless ssh logins enabled for the account which is running the tests.

##Documentation

AsterixDB's official documentation resides at [http://asterixdb.ics.uci.edu/documentation/index.html] (http://asterixdb.ics.uci.edu/documentation/index.html). This is built from the maven project under asterix-doc/ as a maven site. The documentation on the official website refers to the most stable release version, so for pre-release versions one should refer to the compiled documentation.

##Support/Contact

If you have any questions, please feel free to ask on our mailing list, users@asterixdb.incubator.apache.org. Join the list by sending an email to users-subscribe@asterixdb.incubator.apache.org. If you are interested in the internals or developement of AsterixDB, also please feel free to subscribe to our developer mailing list, dev@asterixdb.incubator.apache.org, by sending an email to dev-subscribe@asterixdb.incubator.apache.org.