| commit | 742aba85e00033d4561e194358d0bcd53c775b3f | [log] [tgz] |
|---|---|---|
| author | JavierJia <jianfeng.jia@gmail.com> | Wed Oct 28 18:21:50 2015 -0700 |
| committer | Jianfeng Jia <jianfeng.jia@gmail.com> | Wed Oct 28 21:41:21 2015 -0700 |
| tree | 56b8e8e43a968eec95d4f8b3d26ba79d2d7614bb | |
| parent | 1eeb3d29ccb7ee81c32a7b365db4c5e3ee0705cc [diff] |
ASTERIXDB-1102: VarSize Encoding to store length of String and ByteArray This patch is to change the encoding format that stores the length value of the variable length type (e.g. String, ByteArray) from fix-size encoding (2bytes) to variable-size encoding ( 1 to 5bytes) It will solve the issue 1102 to enable us to store a String that longer than 64K. Also for the common case of storing the short string ( <= 127), it will save one byte per string. Some important changes include: 1. The UTF8StringSerDer and ByteArraySerDer is not Singleton instance any more. I need some state to speedup the serialization and avoid the object creatation. Luckily, 99% percent of Serializer were used as factory way. The other 1% has been fixed. A separate Test support, the ExcutionTest now can produce the only.xml which stores the previous failed runtime test.xml. It can speedup the debug process. Change-Id: I41fff780f5c071742ef10129d83c8f945d5886d7 Reviewed-on: https://asterix-gerrit.ics.uci.edu/450 Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Reviewed-by: Jianfeng Jia <jianfeng.jia@gmail.com>
#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:
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:
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.