big table
play

Big Table Indexing, session 9 CS6200: Information Retrieval Slides - PowerPoint PPT Presentation

May 24, 2023 •308 likes •376 views

Big Table Indexing, session 9 CS6200: Information Retrieval Slides by: Jesse Anderton Distributed Storage BigTable was developed by Google to manage their storage needs. It is a distributed storage system designed to scale across hundreds of

  1. Big Table Indexing, session 9 CS6200: Information Retrieval Slides by: Jesse Anderton

  2. Distributed Storage BigTable was developed by Google to manage their storage needs. It is a distributed storage system designed to scale across hundreds of thousands of machines, and to gracefully continue service as machines fail and are replaced. Storage systems such as BigTable are natural fits for processes distributed with MapReduce. “A Bigtable is a sparse, distributed, persistent multidimensional sorted map.” –Chang et al, 2006.

  3. BigTable Rows The data in BigTable is logically organized into rows. For instance, the inverted list for a term can be stored in a single row. A single cell is identified by its row key, column, and timestamp. Efficient methods exist for fetching or updating particular groups of cells. Only populated cells consume filesystem space: the storage is inherently sparse.

  4. BigTable Tablets BigTable rows reside within logical tables, which have pre-defined columns and group records of a particular type. The rows are subdivided into ~200MB tablets, which are the fundamental underlying filesystem blocks. Tablets and transaction logs are replicated to several machines in case of failure. If a machine fails, another server can immediately read the tablet data and transaction log with virtually no downtime.

  5. BigTable Operations All operations on a BigTable are row-based operations. Most SQL operations are impossible here: no joins or other structured queries. BigTable rows can have massive numbers of columns, and individual cells can contain large amounts of data. For instance, it’s no problem to store a translation of a document into many languages, each in its own column of the same row.

  6. Wrapping Up Storage systems such as BigTable are natural fits for distributed algorithm execution. Google invented BigTable to handle its index, document cache, and most of its other massive storage needs. This has produced a whole generation of distributed storage systems, called NoSQL systems. Some examples include MongoDB, Couchbase, etc. Next, we’ll consider how to run queries efficiently on an index.

Recommend

NEU TABLE By HAY Neu Table is a small table designed by HAY with a round or a square tabletop.

NEU TABLE By HAY Neu Table is a small table designed by HAY with a round or a square tabletop.

NEU TABLE By HAY Neu Table is a small table designed by HAY with a round or a square tabletop. Neu Table fjts a wide variety of indoor and outdoor environments, including offjces, cafs, restaurants, gardens, terraces and balconies. Neu Table

422 views • 10 slides
The Periodic Table Periodic Table & Electron Configurations Effective Nuclear Charge

The Periodic Table Periodic Table & Electron Configurations Effective Nuclear Charge

Slide 1 / 163 Slide 2 / 163 Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Slide 4 / 163 Table of Contents: The Periodic Table Click on the topic to go to that section Periodic Table The Periodic Table Periodic

819 views • 28 slides
The Periodic Table Periodic Table & Electron Configurations Effective Nuclear Charge

The Periodic Table Periodic Table & Electron Configurations Effective Nuclear Charge

Slide 1 / 163 Slide 2 / 163 Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Slide 4 / 163 Table of Contents: The Periodic Table Click on the topic to go to that section Periodic Table The Periodic Table Periodic

683 views • 42 slides
Table A2 Field Descriptions for the Laboratory Instrument Table (Table A2) Contains related to

Table A2 Field Descriptions for the Laboratory Instrument Table (Table A2) Contains related to

Table A2 Field Descriptions for the Laboratory Instrument Table (Table A2) Contains related to laboratory instrument calibration on an analyte level and GC/MS Tune information. This table is optional depending on project requirements. Do not

288 views • 5 slides
1 Chemistry The Periodic Table 20151116 www.njctl.org 2 Table of Contents: The Periodic

1 Chemistry The Periodic Table 20151116 www.njctl.org 2 Table of Contents: The Periodic

1 Chemistry The Periodic Table 20151116 www.njctl.org 2 Table of Contents: The Periodic Table Click on the topic to go to that section Periodic Table Periodic Table & Electron Configurations Effective Nuclear Charge

2.1k views • 164 slides
Table ADT and Sorting Algorithm topics continuing (or reviewing?) CS 24 curriculum A table ADT

Table ADT and Sorting Algorithm topics continuing (or reviewing?) CS 24 curriculum A table ADT

Table ADT and Sorting Algorithm topics continuing (or reviewing?) CS 24 curriculum A table ADT (a.k.a. Dictionary, Map) Table public interface: // Put information in the table, and a unique key to identify it: bool put(KeyType key, ItemType

604 views • 18 slides
Table Saw BEST PRACTICES 2018 Table Saw Purpose NCUs Table Saw Purposes Cutting

Table Saw BEST PRACTICES 2018 Table Saw Purpose NCUs Table Saw Purposes Cutting

Table Saw BEST PRACTICES 2018 Table Saw Purpose NCUs Table Saw Purposes Cutting Plywood Cutting aluminum sheeting Cutting Lumber Cutting high density foam Best Practice - Tooling Inspection Set-up Operation Storage

645 views • 15 slides
Table A1 Field Descriptions for the Analytical Results Table (Table A1) Contains laboratory test

Table A1 Field Descriptions for the Analytical Results Table (Table A1) Contains laboratory test

Table A1 Field Descriptions for the Analytical Results Table (Table A1) Contains laboratory test results and related information for field and QC samples (excluding instrument calibrations) on an analyte level for environmental chemistry

69 views • 3 slides
SLIT TABLE / Design HAY Slit Table is a simple metal side table in three shapes: round, oblong

SLIT TABLE / Design HAY Slit Table is a simple metal side table in three shapes: round, oblong

SLIT TABLE / Design HAY Slit Table is a simple metal side table in three shapes: round, oblong and hexagonal. Slit Table is paper origami translated to the metal universe, named after the slit that emerges when the plate frame is folded

550 views • 6 slides
17 www.scad.ae Table of Contents Table of Contents

17 www.scad.ae Table of Contents Table of Contents

Statistical Report Writing and Data Presentation Guide Methodology and Quality Guides - No. (17) 17 www.scad.ae Table of Contents Table of Contents

1.03k views • 41 slides
SIP Table 2 / Table 3 Adam Roach Anaheim, CA, USA Friday, March 26, 2010 Current Situation

SIP Table 2 / Table 3 Adam Roach Anaheim, CA, USA Friday, March 26, 2010 Current Situation

SIP Table 2 / Table 3 Adam Roach Anaheim, CA, USA Friday, March 26, 2010 Current Situation Table 2 / Table 3 in RFC 3261 summarized where fields MAY, MUST, and MUST NOT appear. (The table is normative). This means, for most header fields,

412 views • 13 slides
Name: _________________________________________________ Room 262 The Periodic Table is a

Name: _________________________________________________ Room 262 The Periodic Table is a

Name: _________________________________________________ Room 262 The Periodic Table is a truly fantastic table of information about all of the elements known to scientists. The table is laid out in 18 vertical groups, that we usually

255 views • 24 slides
Table A3 Field Description for the Sample Analysis (Table A3) This table contains information

Table A3 Field Description for the Sample Analysis (Table A3) This table contains information

Table A3 Field Description for the Sample Analysis (Table A3) This table contains information related to analyses of field samples and laboratory QC samples (excluding calibrations and tunes) on a sample level for environmental chemical analyses

70 views • 4 slides
How to use Table and Data Graph Advanced Skill 1. Select 3D table on the Object list, and add it.

How to use Table and Data Graph Advanced Skill 1. Select 3D table on the Object list, and add it.

How to use Table and Data Graph Advanced Skill 1. Select 3D table on the Object list, and add it. 2. Get a Table Node Setup Dialog. We can change Title, Navigation, Columns and Data on the dialog. 3. Click OK. We can get a default table

65 views • 4 slides
Sketchup drawing of Trestle Table plan Bottom: Legs and stretcher waiting for the table top to be

Sketchup drawing of Trestle Table plan Bottom: Legs and stretcher waiting for the table top to be

Sketchup drawing of Trestle Table plan Bottom: Legs and stretcher waiting for the table top to be lowered onto the tenons on the top of the legs. Assembled trestle Table with foremost leaf open. final table.jpg Bubinga is oily. Scrub with

654 views • 23 slides
PERIODIC TABLE ATI TEAS SCIENCE PERIODIC TABLE Questions related to Periodic Table test your

PERIODIC TABLE ATI TEAS SCIENCE PERIODIC TABLE Questions related to Periodic Table test your

ATI TEAS SCIENCE REVIEW PERIODIC TABLE ATI TEAS SCIENCE PERIODIC TABLE Questions related to Periodic Table test your understanding of how to read the periodic table of the elements. You may also be tested on various properties shared by

570 views • 5 slides
Table Talk * Introduce yourself to everyone at your table * Tell them 1 reason why you came * Tell

Table Talk * Introduce yourself to everyone at your table * Tell them 1 reason why you came * Tell

* Week 2 Lifestyle Medicine Table Talk * Introduce yourself to everyone at your table * Tell them 1 reason why you came * Tell them 1 health goal you have * Say 1 positive that has happened this past week or 1 thing you are grateful for. DR.

864 views • 67 slides
Rela latio ional data pandas SQLite Two table les Table: city Table: country name

Rela latio ional data pandas SQLite Two table les Table: city Table: country name

Rela latio ional data pandas SQLite Two table les Table: city Table: country name population established name population area capital 'Copenhagen' 775033 800 'Denmark' 5748769 42931 'Copenhagen' 'Aarhus' 273077 750

472 views • 13 slides
Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The

Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The

Slide 1 / 163 Slide 2 / 163 Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The Periodic Table Click on the topic to go to that section Periodic Table Periodic Table & Electron Configurations

1.09k views • 84 slides
Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The

Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The

Slide 1 / 163 Slide 2 / 163 Chemistry The Periodic Table 2015-11-16 www.njctl.org Slide 3 / 163 Table of Contents: The Periodic Table Click on the topic to go to that section Periodic Table Periodic Table & Electron Configurations

888 views • 55 slides
When is a Table not a Table? Toward the Identification of References to Communicative Artifacts

When is a Table not a Table? Toward the Identification of References to Communicative Artifacts

When is a Table not a Table? Toward the Identification of References to Communicative Artifacts in Text Shomir Wilson Carnegie Mellon University Timeline 2 2011: PhD, Computer Science, University of Maryland Metacognition in AI, dialogue

665 views • 31 slides
Tidy Table Tidy Table | The Problem Food courts and fast food restaurants are often full of empty,

Tidy Table Tidy Table | The Problem Food courts and fast food restaurants are often full of empty,

Purple B Sketch Model Review Tidy Table Tidy Table | The Problem Food courts and fast food restaurants are often full of empty, but dirty/trash-covered tables . McDonalds Lobdell Tidy Table | Design Goal Design a new table to simply and

690 views • 13 slides
From Seed to Table and Beyond Module II: From Harvest to Table. 36 th International Training

From Seed to Table and Beyond Module II: From Harvest to Table. 36 th International Training

From Seed to Table and Beyond Module II: From Harvest to Table. 36 th International Training Course 6 th Nov 1 st Dec 2017 Background information Became independence in 1979 33 low-lying atolls Average temperature is 33 degree

453 views • 20 slides
Routing Table Status Report November 2005 IPv4 Routing Table Size - Aug IPv4 Routing Table Size

Routing Table Status Report November 2005 IPv4 Routing Table Size - Aug IPv4 Routing Table Size

Geoff Huston APNIC Routing Table Status Report November 2005 IPv4 Routing Table Size - Aug IPv4 Routing Table Size - Nov Data assembled from Route Views data. Each colour represents a time series for a single AS. The major point here is

686 views • 45 slides

More recommend