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Big Data Overview
○ What is Big Data?
○ Big Data in a real life.
○ Big Data problems & challenges?
○ Ways to solve these problems.
○ Big Data tools and technologies.
Crucial Questions
What is Big Data?
○ Too big to fit in memory
○ Too fast data acquisition
requirements
○ Too fast data processing
○ Too complex for
traditional processing
Big Data: numbers & facts
701,389 Facebook logins
38,194 posts to instagram
2.4 Million search queries
2.78 Million video views
Example: car fleet management
○ 1M car profiles
○ Daily reports
○ Track position
by request
○ Keep history in
database
Real-time car fleet management
○ 1K cars connected in real time
○ Gather data via OBD2 scanners in real-time
○ Gather data from cars’ GPS sensors in real-time
○ Store the data for future processing
○ Real-time calculation to predict traffic, engine
problems, accidents
What can we do with (Big)Data?
○ Data ingestion & acquisition
○ Data storage (search, transfer, sharing)
○ Data processing & analysis
○ Data visualization
Data Ingestion & Acquisition
○ Extract:
RDBMS, file systems, messaging
systems, sensors, log files
○ Transform:
Filter, encode/decode, aggregate,
validate
○ Load:
Data warehouse, messaging system
Data Storage
Big Data storage challenges:
○ Size (keep and search huge
amount of data)
○ Speed (data acquisition, data
search)
○ Availability (fault tolerance,
partition tolerance)
○ Consistency: all nodes
see the same data at the
same time
○ Availability: every
request gets a response
(success or failure)
○ Partition tolerance:
system works despite of
network failures
CAP Theorem
Streaming vs Batch processing
Batch Batch
Stream
Data
Data processing: Lambda Architecture
Data processing: Kappa Architecture
Data processing: MapReduce
Data Visualization
Everything as a Service
Example: Amazon Web Services
Q & A ?
○ What is Big Data?
○ Big Data in a real life.
○ Big Data problems & challenges?
○ Ways to solve these problems.
○ Big Data tools and technologies.

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  • 2. ○ What is Big Data? ○ Big Data in a real life. ○ Big Data problems & challenges? ○ Ways to solve these problems. ○ Big Data tools and technologies. Crucial Questions
  • 3. What is Big Data? ○ Too big to fit in memory ○ Too fast data acquisition requirements ○ Too fast data processing ○ Too complex for traditional processing
  • 4. Big Data: numbers & facts 701,389 Facebook logins 38,194 posts to instagram 2.4 Million search queries 2.78 Million video views
  • 5. Example: car fleet management ○ 1M car profiles ○ Daily reports ○ Track position by request ○ Keep history in database
  • 6. Real-time car fleet management ○ 1K cars connected in real time ○ Gather data via OBD2 scanners in real-time ○ Gather data from cars’ GPS sensors in real-time ○ Store the data for future processing ○ Real-time calculation to predict traffic, engine problems, accidents
  • 7. What can we do with (Big)Data? ○ Data ingestion & acquisition ○ Data storage (search, transfer, sharing) ○ Data processing & analysis ○ Data visualization
  • 8. Data Ingestion & Acquisition ○ Extract: RDBMS, file systems, messaging systems, sensors, log files ○ Transform: Filter, encode/decode, aggregate, validate ○ Load: Data warehouse, messaging system
  • 9. Data Storage Big Data storage challenges: ○ Size (keep and search huge amount of data) ○ Speed (data acquisition, data search) ○ Availability (fault tolerance, partition tolerance)
  • 10. ○ Consistency: all nodes see the same data at the same time ○ Availability: every request gets a response (success or failure) ○ Partition tolerance: system works despite of network failures CAP Theorem
  • 11. Streaming vs Batch processing Batch Batch Stream Data
  • 12. Data processing: Lambda Architecture
  • 13. Data processing: Kappa Architecture
  • 16. Everything as a Service
  • 18. Q & A ? ○ What is Big Data? ○ Big Data in a real life. ○ Big Data problems & challenges? ○ Ways to solve these problems. ○ Big Data tools and technologies.

Notas do Editor

  1. Ты сможешь при необходимости объяснить, что такое ODB2 scanner? Да, но смысла на этом акцентировать внимание нет, удаляем
  2. Оч много текста и сложно в восприятии, может оставим список из 4х элементов, а остальное словами? ++
  3. Вот тут для наглядности было бы неплохо реальный пример привести на словах, допустим тот же пример с ресторанным бизнесом, когда куча партнеров предоставляет данные по закупкам/ценам в разных форматах, а ресторану потом нужно сводить бухгалтерию, учитывая свои затраты и прибыли Ты ведь имеешь в виду только словами пример? Я практически к каждому слайду стараюсь придумать пример из реальной жизни
  4. Тут бы я добавила картинку с датацентром и кучей серверов, названия компаний никому ни о чем пока не скажут, лучше их рассмотреть подробно во время лекции по хранилищам
  5. Я бы оставила этот слайд, а предыдущий убрала, суть на них та же, но этот намного проще в восприятии Ок, мне он тоже больше нравится, один вопрос, норм. Видно будет?