New EMC Documentum xPlore to Replace FAST Instream Search
xPlore Architecure
xPlore and the Legacy FAST Instream can be compared in terms of their architecture. Some points of comparison include:
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xPlore's architecture is more elegant and simple than FASTs : xPlore has fewer processes and a single unified XML database. Complexity and large process footprint can lead to resource bloat and reliability problems.
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xPlore Leverages best-of-breed technology: xPlore leverages best-of-breed technology for all of its components (xDB XML database, Lucene for base full text indexing, and industry leading linguistic analysis and content extraction technology).
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xPlore uses Standard Query languages instead of proprietary ones: xPlore uses xQuery instead of the proprietary FAST query language (FQL).
Item
Documentum xPlore
Legacy FAST Instream embedded into Documentum
Number of processes per node/instance |
3:xPlore Server Content Processing Server (CPS), and Watchdog Process |
12+, including: Content distributors, Document processors, index dispatchers, indexing processes, basic search processes, and query/result servers/ |
Platforms |
xPlore runs on Linux and Windows but can be deployed for all Documentum platforms (AIX, HP/UX, Solaris, Linux, and Windows) |
Supports all Documentum platforms (but later versions of OS are not supported) |
Internal Data Architecture |
xPlore is based solely on EMC's xDB (XML database) and leverages Lucene as an underlying index |
Proprietary and a mixture of different technologies |
Indexing technology |
Lucene |
Proprietary |
Linguistic Analysis Technology |
Base technology supports 80+ languages |
Base technology supports 80+ languages |
Content Extraction Technology |
Base technology supports 150 formats and 800+ versions |
Base technology supports 150 formats and 800+ versions |
Native Query Language |
Standard XQuery with full text extensions |
Proprietary FAST Query Language (FQL) |
FAST: FTXML/FIXML , FTQL
xPlore: xDB(formerly known as xHive), standard xquery
TSG BLOG
http://blog.tsgrp.com/2010/05/21/documentum-search-services-the-real-deal/
http://contentperspective.se/?p=875
http://www.bluefishgroup.com/library/2010/emc-world-2010-more-information-on-documentum-search-services/
http://wordofpie.com/2010/10/04/documentum-xplore-the-new-fast-search/ [句子不错,通俗易懂]
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