Seminars

DATE: Wednesday, December 7, 2011 - NOTE SPECIAL DAY
TIME: Noon to 1 pm
PLACE:
Gates 8102

SPEAKER: Keith Turner, Accumulo Developer

TITLE: New Accumulo 1.4 Features

ABSTRACT:
Accumulo is a sorted, distributed key/value store based on Google's BigTable design. The National Security Agency Computer and Information Sciences Research Group recently contributed Accumulo to the Apache Software Foundation. This talk will provide a sneak preview of some of the innovations that will be included in the next release of Accumulo. In particular, we will highlight two of these features: the Fault Tolerant Executor (FATE) and the multi-level RFile. FATE ensures that operations like creating a table happen correctly in the face of faults and concurrency. The new multi-level RFile decreases open times and memory usage relative to our previous file format by using a BTree-like structure. We will also give a brief overview of the following new features : table cloning, tablet merging, merging minor compactions, logical time for bulk import, compact range, and delete range.

BIO:
Keith Turner is an Accumulo developer who has worked on the project since 2008. He has worked on data mining problems at NSA since 2004. He has a MSCS from Purdue University and a BSCS from the University of Louisiana at Lafayette.

SDI / ISTC Seminar Questions?
Karen Lindenfelser, 86716, or visit www.pdl.cmu.edu/SDI/