Solr is an open source enterprise search platform that provides powerful full-text search, hit highlighting, faceted search, database integration, and document handling capabilities. It uses Apache Lucene under the hood for indexing and search, and provides REST-like APIs, a web admin interface, and SolrJ for indexing and querying. Solr allows adding, deleting, and updating documents in its index via HTTP requests and can index documents in various formats including XML, CSV, and rich documents using Apache Tika. It provides distributed search capabilities and can be configured for high availability and scalability.
This document provides an introduction to Apache Solr, including:
- Solr is an open-source search engine and REST API built on Lucene for indexing and searching documents.
- Solr architecture includes nodes, cores, schemas, and concepts like SolrCloud which uses Zookeeper for coordination across collections and shards.
- Documents are indexed, queried, updated, and deleted via the REST API or client libraries. Queries support various types including range, date, boolean, and proximity queries.
- Installation and configuration of standalone Solr involves downloading, extracting, and running bin/solr scripts to start the server and create cores.
- Resources for learning more include tutorials, documentation, and integration options
The document provides instructions for installing Solr on Windows by downloading and configuring Tomcat and Solr. It describes downloading Tomcat and Solr, configuring server.xml, extracting Solr to c:\web\solr, copying the Solr WAR file to Tomcat, and accessing the Solr admin page at http://localhost:8080/solr/admin to verify the installation.
This document provides a summary of improvements made to Hive's performance through the use of Apache Tez and other optimizations. Some key points include:
- Hive was improved to use Apache Tez as its execution engine instead of MapReduce, reducing latency for interactive queries and improving throughput for batch queries.
- Statistics collection was optimized to gather column-level statistics from ORC file footers, speeding up statistics gathering.
- The cost-based optimizer Optiq was added to Hive, allowing it to choose better execution plans.
- Vectorized query processing, broadcast joins, dynamic partitioning, and other optimizations improved individual query performance by over 100x in some cases.
The document provides an overview and agenda for an Apache Solr crash course. It discusses topics such as information retrieval, inverted indexes, metrics for evaluating IR systems, Apache Lucene, the Lucene and Solr APIs, indexing, searching, querying, filtering, faceting, highlighting, spellchecking, geospatial search, and Solr architectures including single core, multi-core, replication, and sharding. It also provides tips on performance tuning, using plugins, and developing a Solr-based search engine.
Cost-based Query Optimization in Apache Phoenix using Apache CalciteJulian Hyde
This document summarizes a presentation on using Apache Calcite for cost-based query optimization in Apache Phoenix. Key points include:
- Phoenix is adding Calcite's query planning capabilities to improve performance and SQL compliance over its existing query optimizer.
- Calcite models queries as relational algebra expressions and uses rules, statistics, and a cost model to choose the most efficient execution plan.
- Examples show how Calcite rules like filter pushdown and exploiting sortedness can generate better plans than Phoenix's existing optimizer.
- Materialized views and interoperability with other Calcite data sources like Apache Drill are areas for future improvement beyond the initial Phoenix+Calcite integration.
The document provides an introduction to NoSQL and HBase. It discusses what NoSQL is, the different types of NoSQL databases, and compares NoSQL to SQL databases. It then focuses on HBase, describing its architecture and components like HMaster, regionservers, Zookeeper. It explains how HBase stores and retrieves data, the write process involving memstores and compaction. It also covers HBase shell commands for creating, inserting, querying and deleting data.
Presented by Adrien Grand, Software Engineer, Elasticsearch
Although people usually come to Lucene and related solutions in order to make data searchable, they often realize that it can do much more for them. Indeed, its ability to handle high loads of complex queries make Lucene a perfect fit for analytics applications and, for some use-cases, even a credible replacement for a primary data-store. It is important to understand the design decisions behind Lucene in order to better understand the problems it can solve and the problems it cannot solve. This talk will explain the design decisions behind Lucene, give insights into how Lucene stores data on disk and how it differs from traditional databases. Finally, there will be highlights of recent and future changes in Lucene index file formats.
What is Yaml:
Human friendly, cross language, Unicode based data serialization language.
Pronounced in such a way as to rhyme with “camel”
Acronym for
YAML
Ain’t
A language used to convert or represent structured data or objects as a series of characters that can be stored on a disk.
Examples:
CSV – Comma separated values
XML – Extensible markup language
JSON – JavaScript object notation
YAML – YAML ain’t markup language
Markup
Language
This document provides an introduction to Apache Solr, including:
- Solr is an open-source search engine and REST API built on Lucene for indexing and searching documents.
- Solr architecture includes nodes, cores, schemas, and concepts like SolrCloud which uses Zookeeper for coordination across collections and shards.
- Documents are indexed, queried, updated, and deleted via the REST API or client libraries. Queries support various types including range, date, boolean, and proximity queries.
- Installation and configuration of standalone Solr involves downloading, extracting, and running bin/solr scripts to start the server and create cores.
- Resources for learning more include tutorials, documentation, and integration options
The document provides instructions for installing Solr on Windows by downloading and configuring Tomcat and Solr. It describes downloading Tomcat and Solr, configuring server.xml, extracting Solr to c:\web\solr, copying the Solr WAR file to Tomcat, and accessing the Solr admin page at http://localhost:8080/solr/admin to verify the installation.
This document provides a summary of improvements made to Hive's performance through the use of Apache Tez and other optimizations. Some key points include:
- Hive was improved to use Apache Tez as its execution engine instead of MapReduce, reducing latency for interactive queries and improving throughput for batch queries.
- Statistics collection was optimized to gather column-level statistics from ORC file footers, speeding up statistics gathering.
- The cost-based optimizer Optiq was added to Hive, allowing it to choose better execution plans.
- Vectorized query processing, broadcast joins, dynamic partitioning, and other optimizations improved individual query performance by over 100x in some cases.
The document provides an overview and agenda for an Apache Solr crash course. It discusses topics such as information retrieval, inverted indexes, metrics for evaluating IR systems, Apache Lucene, the Lucene and Solr APIs, indexing, searching, querying, filtering, faceting, highlighting, spellchecking, geospatial search, and Solr architectures including single core, multi-core, replication, and sharding. It also provides tips on performance tuning, using plugins, and developing a Solr-based search engine.
Cost-based Query Optimization in Apache Phoenix using Apache CalciteJulian Hyde
This document summarizes a presentation on using Apache Calcite for cost-based query optimization in Apache Phoenix. Key points include:
- Phoenix is adding Calcite's query planning capabilities to improve performance and SQL compliance over its existing query optimizer.
- Calcite models queries as relational algebra expressions and uses rules, statistics, and a cost model to choose the most efficient execution plan.
- Examples show how Calcite rules like filter pushdown and exploiting sortedness can generate better plans than Phoenix's existing optimizer.
- Materialized views and interoperability with other Calcite data sources like Apache Drill are areas for future improvement beyond the initial Phoenix+Calcite integration.
The document provides an introduction to NoSQL and HBase. It discusses what NoSQL is, the different types of NoSQL databases, and compares NoSQL to SQL databases. It then focuses on HBase, describing its architecture and components like HMaster, regionservers, Zookeeper. It explains how HBase stores and retrieves data, the write process involving memstores and compaction. It also covers HBase shell commands for creating, inserting, querying and deleting data.
Presented by Adrien Grand, Software Engineer, Elasticsearch
Although people usually come to Lucene and related solutions in order to make data searchable, they often realize that it can do much more for them. Indeed, its ability to handle high loads of complex queries make Lucene a perfect fit for analytics applications and, for some use-cases, even a credible replacement for a primary data-store. It is important to understand the design decisions behind Lucene in order to better understand the problems it can solve and the problems it cannot solve. This talk will explain the design decisions behind Lucene, give insights into how Lucene stores data on disk and how it differs from traditional databases. Finally, there will be highlights of recent and future changes in Lucene index file formats.
What is Yaml:
Human friendly, cross language, Unicode based data serialization language.
Pronounced in such a way as to rhyme with “camel”
Acronym for
YAML
Ain’t
A language used to convert or represent structured data or objects as a series of characters that can be stored on a disk.
Examples:
CSV – Comma separated values
XML – Extensible markup language
JSON – JavaScript object notation
YAML – YAML ain’t markup language
Markup
Language
MongoDB is an open-source, document-oriented database that provides high performance and horizontal scalability. It uses a document-model where data is organized in flexible, JSON-like documents rather than rigidly defined rows and tables. Documents can contain multiple types of nested objects and arrays. MongoDB is best suited for applications that need to store large amounts of unstructured or semi-structured data and benefit from horizontal scalability and high performance.
Radical Speed for SQL Queries on Databricks: Photon Under the HoodDatabricks
Join this session to hear from the Photon product and engineering team talk about the latest developments with the project.
As organizations embrace data-driven decision-making, it has become imperative for them to invest in a platform that can quickly ingest and analyze massive amounts and types of data. With their data lakes, organizations can store all their data assets in cheap cloud object storage. But data lakes alone lack robust data management and governance capabilities. Fortunately, Delta Lake brings ACID transactions to your data lakes – making them more reliable while retaining the open access and low storage cost you are used to.
Using Delta Lake as its foundation, the Databricks Lakehouse platform delivers a simplified and performant experience with first-class support for all your workloads, including SQL, data engineering, data science & machine learning. With a broad set of enhancements in data access and filtering, query optimization and scheduling, as well as query execution, the Lakehouse achieves state-of-the-art performance to meet the increasing demands of data applications. In this session, we will dive into Photon, a key component responsible for efficient query execution.
Photon was first introduced at Spark and AI Summit 2020 and is written from the ground up in C++ to take advantage of modern hardware. It uses the latest techniques in vectorized query processing to capitalize on data- and instruction-level parallelism in CPUs, enhancing performance on real-world data and applications — all natively on your data lake. Photon is fully compatible with the Apache Spark™ DataFrame and SQL APIs to ensure workloads run seamlessly without code changes. Come join us to learn more about how Photon can radically speed up your queries on Databricks.
Data Con LA 2020
Description
Apache Druid is a cloud-native open-source database that enables developers to build highly-scalable, low-latency, real-time interactive dashboards and apps to explore huge quantities of data. This column-oriented database provides the microsecond query response times required for ad-hoc queries and programmatic analytics. Druid natively streams data from Apache Kafka (and more) and batch loads just about anything. At ingestion, Druid partitions data based on time so time-based queries run significantly faster than traditional databases, plus Druid offers SQL compatibility. Druid is used in production by AirBnB, Nielsen, Netflix and more for real-time and historical data analytics. This talk provides an introduction to Apache Druid including: Druid's core architecture and its advantages, Working with streaming and batch data in Druid, Querying data and building apps on Druid and Real-world examples of Apache Druid in action
Speaker
Matt Sarrel, Imply Data, Developer Evangelist
This document provides a summary of the Solr search platform. It begins with introductions from the presenter and about Lucid Imagination. It then discusses what Solr is, how it works, who uses it, and its main features. The rest of the document dives deeper into topics like how Solr is configured, how to index and search data, and how to debug and customize Solr implementations. It promotes downloading and experimenting with Solr to learn more.
This document provides an overview of Apache Hadoop and HBase. It begins with an introduction to why big data is important and how Hadoop addresses storing and processing large amounts of data across commodity servers. The core components of Hadoop, HDFS for storage and MapReduce for distributed processing, are described. An example MapReduce job is outlined. The document then introduces the Hadoop ecosystem, including Apache HBase for random read/write access to data stored in Hadoop. Real-world use cases of Hadoop at companies like Yahoo, Facebook and Twitter are briefly mentioned before addressing questions.
Talk given for the #phpbenelux user group, March 27th in Gent (BE), with the goal of convincing developers that are used to build php/mysql apps to broaden their horizon when adding search to their site. Be sure to also have a look at the notes for the slides; they explain some of the screenshots, etc.
An accompanying blog post about this subject can be found at http://www.jurriaanpersyn.com/archives/2013/11/18/introduction-to-elasticsearch/
HBase is an open-source, distributed, versioned, key-value database modeled after Google's Bigtable. It is designed to store large volumes of sparse data across commodity hardware. HBase uses Hadoop for storage and provides real-time read and write capabilities. It scales horizontally and is highly fault tolerant through its master-slave architecture and use of Zookeeper for coordination. Data in HBase is stored in tables and indexed by row keys for fast lookup, with columns grouped into families and versions stored by timestamps.
A brief presentation outlining the basics of elasticsearch for beginners. Can be used to deliver a seminar on elasticsearch.(P.S. I used it) Would Recommend the presenter to fiddle with elasticsearch beforehand.
This presentation shortly describes key features of Apache Cassandra. It was held at the Apache Cassandra Meetup in Vienna in January 2014. You can access the meetup here: http://www.meetup.com/Vienna-Cassandra-Users/
Jesse Anderson (Smoking Hand)
This early-morning session offers an overview of what HBase is, how it works, its API, and considerations for using HBase as part of a Big Data solution. It will be helpful for people who are new to HBase, and also serve as a refresher for those who may need one.
Elasticsearch is a distributed, open source search and analytics engine that allows full-text searches of structured and unstructured data. It is built on top of Apache Lucene and uses JSON documents. Elasticsearch can index, search, and analyze big volumes of data in near real-time. It is horizontally scalable, fault tolerant, and easy to deploy and administer.
Redis is an open source in memory database which is easy to use. In this introductory presentation, several features will be discussed including use cases. The datatypes will be elaborated, publish subscribe features, persistence will be discussed including client implementations in Node and Spring Boot. After this presentation, you will have a basic understanding of what Redis is and you will have enough knowledge to get started with your first implementation!
In this presentation, we are going to discuss how elasticsearch handles the various operations like insert, update, delete. We would also cover what is an inverted index and how segment merging works.
Netflix’s Big Data Platform team manages data warehouse in Amazon S3 with over 60 petabytes of data and writes hundreds of terabytes of data every day. With a data warehouse at this scale, it is a constant challenge to keep improving performance. This talk will focus on Iceberg, a new table metadata format that is designed for managing huge tables backed by S3 storage. Iceberg decreases job planning time from minutes to under a second, while also isolating reads from writes to guarantee jobs always use consistent table snapshots.
In this session, you'll learn:
• Some background about big data at Netflix
• Why Iceberg is needed and the drawbacks of the current tables used by Spark and Hive
• How Iceberg maintains table metadata to make queries fast and reliable
• The benefits of Iceberg's design and how it is changing the way Netflix manages its data warehouse
• How you can get started using Iceberg
Speaker
Ryan Blue, Software Engineer, Netflix
Watch this talk here: https://www.confluent.io/online-talks/apache-kafka-architecture-and-fundamentals-explained-on-demand
This session explains Apache Kafka’s internal design and architecture. Companies like LinkedIn are now sending more than 1 trillion messages per day to Apache Kafka. Learn about the underlying design in Kafka that leads to such high throughput.
This talk provides a comprehensive overview of Kafka architecture and internal functions, including:
-Topics, partitions and segments
-The commit log and streams
-Brokers and broker replication
-Producer basics
-Consumers, consumer groups and offsets
This session is part 2 of 4 in our Fundamentals for Apache Kafka series.
This slide deck talks about Elasticsearch and its features.
When you talk about ELK stack it just means you are talking
about Elasticsearch, Logstash, and Kibana. But when you talk
about Elastic stack, other components such as Beats, X-Pack
are also included with it.
what is the ELK Stack?
ELK vs Elastic stack
What is Elasticsearch used for?
How does Elasticsearch work?
What is an Elasticsearch index?
Shards
Replicas
Nodes
Clusters
What programming languages does Elasticsearch support?
Amazon Elasticsearch, its use cases and benefits
Introduction and Overview of Apache Kafka, TriHUG July 23, 2013mumrah
Apache Kafka is a distributed publish-subscribe messaging system that allows both publishing and subscribing to streams of records. It uses a distributed commit log that provides low latency and high throughput for handling real-time data feeds. Key features include persistence, replication, partitioning, and clustering.
This document provides an overview of Apache Solr, including why it is useful, how to install and configure it, how to perform basic and advanced queries, how to scale Solr installations, and how to leverage caching. Some key features of Solr mentioned are full-text search, faceted navigation, spell checking, highlighting, and integration with other products like Drupal. The document also discusses Solr components like data import handlers, response writers, and external search components.
MongoDB is an open-source, document-oriented database that provides high performance and horizontal scalability. It uses a document-model where data is organized in flexible, JSON-like documents rather than rigidly defined rows and tables. Documents can contain multiple types of nested objects and arrays. MongoDB is best suited for applications that need to store large amounts of unstructured or semi-structured data and benefit from horizontal scalability and high performance.
Radical Speed for SQL Queries on Databricks: Photon Under the HoodDatabricks
Join this session to hear from the Photon product and engineering team talk about the latest developments with the project.
As organizations embrace data-driven decision-making, it has become imperative for them to invest in a platform that can quickly ingest and analyze massive amounts and types of data. With their data lakes, organizations can store all their data assets in cheap cloud object storage. But data lakes alone lack robust data management and governance capabilities. Fortunately, Delta Lake brings ACID transactions to your data lakes – making them more reliable while retaining the open access and low storage cost you are used to.
Using Delta Lake as its foundation, the Databricks Lakehouse platform delivers a simplified and performant experience with first-class support for all your workloads, including SQL, data engineering, data science & machine learning. With a broad set of enhancements in data access and filtering, query optimization and scheduling, as well as query execution, the Lakehouse achieves state-of-the-art performance to meet the increasing demands of data applications. In this session, we will dive into Photon, a key component responsible for efficient query execution.
Photon was first introduced at Spark and AI Summit 2020 and is written from the ground up in C++ to take advantage of modern hardware. It uses the latest techniques in vectorized query processing to capitalize on data- and instruction-level parallelism in CPUs, enhancing performance on real-world data and applications — all natively on your data lake. Photon is fully compatible with the Apache Spark™ DataFrame and SQL APIs to ensure workloads run seamlessly without code changes. Come join us to learn more about how Photon can radically speed up your queries on Databricks.
Data Con LA 2020
Description
Apache Druid is a cloud-native open-source database that enables developers to build highly-scalable, low-latency, real-time interactive dashboards and apps to explore huge quantities of data. This column-oriented database provides the microsecond query response times required for ad-hoc queries and programmatic analytics. Druid natively streams data from Apache Kafka (and more) and batch loads just about anything. At ingestion, Druid partitions data based on time so time-based queries run significantly faster than traditional databases, plus Druid offers SQL compatibility. Druid is used in production by AirBnB, Nielsen, Netflix and more for real-time and historical data analytics. This talk provides an introduction to Apache Druid including: Druid's core architecture and its advantages, Working with streaming and batch data in Druid, Querying data and building apps on Druid and Real-world examples of Apache Druid in action
Speaker
Matt Sarrel, Imply Data, Developer Evangelist
This document provides a summary of the Solr search platform. It begins with introductions from the presenter and about Lucid Imagination. It then discusses what Solr is, how it works, who uses it, and its main features. The rest of the document dives deeper into topics like how Solr is configured, how to index and search data, and how to debug and customize Solr implementations. It promotes downloading and experimenting with Solr to learn more.
This document provides an overview of Apache Hadoop and HBase. It begins with an introduction to why big data is important and how Hadoop addresses storing and processing large amounts of data across commodity servers. The core components of Hadoop, HDFS for storage and MapReduce for distributed processing, are described. An example MapReduce job is outlined. The document then introduces the Hadoop ecosystem, including Apache HBase for random read/write access to data stored in Hadoop. Real-world use cases of Hadoop at companies like Yahoo, Facebook and Twitter are briefly mentioned before addressing questions.
Talk given for the #phpbenelux user group, March 27th in Gent (BE), with the goal of convincing developers that are used to build php/mysql apps to broaden their horizon when adding search to their site. Be sure to also have a look at the notes for the slides; they explain some of the screenshots, etc.
An accompanying blog post about this subject can be found at http://www.jurriaanpersyn.com/archives/2013/11/18/introduction-to-elasticsearch/
HBase is an open-source, distributed, versioned, key-value database modeled after Google's Bigtable. It is designed to store large volumes of sparse data across commodity hardware. HBase uses Hadoop for storage and provides real-time read and write capabilities. It scales horizontally and is highly fault tolerant through its master-slave architecture and use of Zookeeper for coordination. Data in HBase is stored in tables and indexed by row keys for fast lookup, with columns grouped into families and versions stored by timestamps.
A brief presentation outlining the basics of elasticsearch for beginners. Can be used to deliver a seminar on elasticsearch.(P.S. I used it) Would Recommend the presenter to fiddle with elasticsearch beforehand.
This presentation shortly describes key features of Apache Cassandra. It was held at the Apache Cassandra Meetup in Vienna in January 2014. You can access the meetup here: http://www.meetup.com/Vienna-Cassandra-Users/
Jesse Anderson (Smoking Hand)
This early-morning session offers an overview of what HBase is, how it works, its API, and considerations for using HBase as part of a Big Data solution. It will be helpful for people who are new to HBase, and also serve as a refresher for those who may need one.
Elasticsearch is a distributed, open source search and analytics engine that allows full-text searches of structured and unstructured data. It is built on top of Apache Lucene and uses JSON documents. Elasticsearch can index, search, and analyze big volumes of data in near real-time. It is horizontally scalable, fault tolerant, and easy to deploy and administer.
Redis is an open source in memory database which is easy to use. In this introductory presentation, several features will be discussed including use cases. The datatypes will be elaborated, publish subscribe features, persistence will be discussed including client implementations in Node and Spring Boot. After this presentation, you will have a basic understanding of what Redis is and you will have enough knowledge to get started with your first implementation!
In this presentation, we are going to discuss how elasticsearch handles the various operations like insert, update, delete. We would also cover what is an inverted index and how segment merging works.
Netflix’s Big Data Platform team manages data warehouse in Amazon S3 with over 60 petabytes of data and writes hundreds of terabytes of data every day. With a data warehouse at this scale, it is a constant challenge to keep improving performance. This talk will focus on Iceberg, a new table metadata format that is designed for managing huge tables backed by S3 storage. Iceberg decreases job planning time from minutes to under a second, while also isolating reads from writes to guarantee jobs always use consistent table snapshots.
In this session, you'll learn:
• Some background about big data at Netflix
• Why Iceberg is needed and the drawbacks of the current tables used by Spark and Hive
• How Iceberg maintains table metadata to make queries fast and reliable
• The benefits of Iceberg's design and how it is changing the way Netflix manages its data warehouse
• How you can get started using Iceberg
Speaker
Ryan Blue, Software Engineer, Netflix
Watch this talk here: https://www.confluent.io/online-talks/apache-kafka-architecture-and-fundamentals-explained-on-demand
This session explains Apache Kafka’s internal design and architecture. Companies like LinkedIn are now sending more than 1 trillion messages per day to Apache Kafka. Learn about the underlying design in Kafka that leads to such high throughput.
This talk provides a comprehensive overview of Kafka architecture and internal functions, including:
-Topics, partitions and segments
-The commit log and streams
-Brokers and broker replication
-Producer basics
-Consumers, consumer groups and offsets
This session is part 2 of 4 in our Fundamentals for Apache Kafka series.
This slide deck talks about Elasticsearch and its features.
When you talk about ELK stack it just means you are talking
about Elasticsearch, Logstash, and Kibana. But when you talk
about Elastic stack, other components such as Beats, X-Pack
are also included with it.
what is the ELK Stack?
ELK vs Elastic stack
What is Elasticsearch used for?
How does Elasticsearch work?
What is an Elasticsearch index?
Shards
Replicas
Nodes
Clusters
What programming languages does Elasticsearch support?
Amazon Elasticsearch, its use cases and benefits
Introduction and Overview of Apache Kafka, TriHUG July 23, 2013mumrah
Apache Kafka is a distributed publish-subscribe messaging system that allows both publishing and subscribing to streams of records. It uses a distributed commit log that provides low latency and high throughput for handling real-time data feeds. Key features include persistence, replication, partitioning, and clustering.
This document provides an overview of Apache Solr, including why it is useful, how to install and configure it, how to perform basic and advanced queries, how to scale Solr installations, and how to leverage caching. Some key features of Solr mentioned are full-text search, faceted navigation, spell checking, highlighting, and integration with other products like Drupal. The document also discusses Solr components like data import handlers, response writers, and external search components.
Overview of Solr 6.2 examples, including features they have and challenges they present. A contrasting demonstration of a minimal viable example. A step-by-step deconstruction of "films" example to show what part of shipped examples are not actually needed.
Introduction to Solr, presented at Bangkok meetup in April 2014:
http://www.meetup.com/bkk-web/events/172090992/
Covers high-level use-cases for Solr. Demos include support for Thai language (with GitHub link for source).
Has slides showcasing Solr-ecosystem as well as couple of ideas for possible Solr-specific learning projects.
This document provides an overview and introduction to the Solr search platform. It describes how Solr can be used to index and search content, integrate with other systems, and handle common search issues. The presentation also discusses Lucene, the search library that powers Solr, and how content from various sources like databases, files, and rich documents can be indexed.
This document provides an introduction to Apache Lucene and Solr. It begins with an overview of information retrieval and some basic concepts like term frequency-inverse document frequency. It then describes Lucene as a fast, scalable search library and discusses its inverted index and indexing pipeline. Solr is introduced as an enterprise search platform built on Lucene that provides features like faceting, scalability and real-time indexing. The document concludes with examples of how Lucene and Solr are used in applications and websites for search, analytics, auto-suggestion and more.
Indexing with solr search server and hadoop frameworkkeval dalasaniya
Hadoop and Solr are used together for indexing large datasets across distributed systems. Hadoop provides a distributed file system and Solr provides search capabilities. Solr indexes data from Hadoop and allows for fast, scalable search across large datasets even when data and computing resources are spread across multiple machines and locations. The combination of Hadoop and Solr provides a fault-tolerant solution for storing, processing, and searching very large datasets in a distributed environment.
Solr Flair demonstrates the powerful user interfaces and interactions that can be built with Apache Solr. It shows examples leveraging features like suggest, instant search, spell checking, faceting, filtering, grouping, and clustering. These examples are presented with full code, configuration, and UI elements. A variety of technologies are used to build the UIs, including Solr, Lucene, jQuery, Velocity templating, and others. The presentation concludes by showing some live systems that have been built using these techniques.
Apache Solr serves search requests at the enterprises and the largest companies around the world. Built on top of the top-notch Apache Lucene library, Solr makes indexing and searching integration into your applications straightforward. Solr provides faceted navigation, spell checking, highlighting, clustering, grouping, and other search features. Solr also scales query volume with replication and collection size with distributed capabilities. Solr can index rich documents such as PDF, Word, HTML, and other file types.
Come learn how you can get your content into Solr and integrate it into your applications!
This document provides an introduction and overview of Apache Solr and how it can be used with Drupal to provide improved search capabilities compared to Drupal's default search. It discusses what Solr is, its benefits for large Drupal sites, how to set it up, and key Solr features like faceted search. It also provides tips on indexing with cron and links to additional resources.
Solr cluster with SolrCloud at lucenerevolution (tutorial)searchbox-com
In this presentation we aim to show how to make a high availability Solr cloud with 4.1 using only Solr and a few bash scripts. The goal is to present an infrastructure which is self healing using only cheap instances based on ephemeral storage. We will start by providing a comprehensive overview of the relation between collections, Solr cores, shards and cluster nodes. We continue by an introduction to Solr 4.x clustering using zookeeper with a particular emphasis on cluster state status/monitoring and solr collection configuration. The core of our presentation will be demonstrated using a live cluster. We will show how to use cron and bash to monitor the state of the cluster and the state of its nodes. We will then show how we can extend our monitoring to auto generate new nodes, attach them to the cluster, and assign them shardes (selecting between missing shardes or replication for HA). We will show that using a high replication factor it is possible to use ephemeral storage for shards without the risk of data loss, greatly reducing the cost and management of the architecture. Future work discussions, which might be engaged using an open source effort, include monitoring activity of individual nodes as to scale the cluster according to traffic and usage.
This document provides an overview of the Solr search platform, including its main features like full text search, faceting, scalability and APIs. It discusses how Solr indexes and ranks documents, handles queries and facets, and can scale to large datasets through techniques like replication and sharding. The presentation concludes with demonstrating useful Solr commands and its main administrative interface.
The document discusses the open source search platform Solr, describing how it provides a RESTful web interface and Java client for full text search capabilities. It covers installing and configuring Solr, adding and querying data via its HTTP API, and using the SolrJ Java client library. The presentation also highlights key Solr features like faceting, filtering, and scaling for performance.
Join us as we talk about the current state as well as the future of DSE Search. Nick Panahi will discuss high level architecture while Ariel will dive deep into some of the integration. We'll talk about future features, improvements and enhancements as well as some of the challenges of our custom integration and what that means for scale and availability.
About the Speakers
Nick Panahi Sr. Product Manager, DSE Search, DataStax
I am the product manager for DSE search, prior to product management, I was a solution architect for DataStax.
Ariel Weisberg Software Engineer, DataStax
Ariel is currently a Cassandra contributor and Datastax employee and former lead architect for VoltDB. Ariel aspires to be or considers himself a shared-nothing database expert depending on the time of day and whether Benedict is in the room, and has a passion for things measured in nanoseconds. Ariel has presented at events like Strangeloop, PAX Dev, OpenSQL camp Boston, NYC MySQL Meetup, and Boston New Technology Group meetup.
These slide belonged to the presentation I hold to my colleagues in Göttingen as an introduction to Apache Solr open source search engine. In the structure I followed Trey Grainger and Timothy Potter excellent Solr in Action book (Manning, 2014), and I took some of the examples form there. Some others come from the examples bundeled with Solr, and from the projects I had opportunity to work with in the past (eXtensible Catalog and Europeana).
These slides don't go too deep, if you want to know more about the topic, just drop me an email, or consult with the references on the last slide.
Happy searching!
Webinar: Solr's example/files: From bin/post to /browse and BeyondLucidworks
Join Lucidworks cofounder, Sr. Solutions Architect, and Lucene/Solr committer, Erik Hatcher for a webinar to explore how to build a personal document search app with the ease and power of Solr.
This document provides an overview of Apache Solr 5 including its features like full-text search, real-time indexing, and REST APIs. It describes how to install Solr, configure cores and schemas, and run Solr in standalone and cloud modes. Details are given about indexing, querying, SolrCloud architecture with collections, shards and replicas, and best practices for production deployment.
Scaling SolrCloud to a Large Number of Collections: Presented by Shalin Shekh...Lucidworks
This document discusses scaling SolrCloud to support a large number of collections. It identifies four main problems in scaling: 1) large cluster state size, 2) overseer performance issues with thousands of collections, 3) difficulty moving data between collections, and 4) limitations in exporting full result sets. The document outlines solutions implemented to each problem, including splitting the cluster state, optimizing the overseer, improving data management between collections, and enabling distributed deep paging to export full result sets. Testing showed the ability to support 30 hosts, 120 nodes, 1000 collections, over 6 billion documents, and sustained performance targets.
Petabyte search at scale: understand how DataStax Enterprise search enables complex real-time multi-dimensional queries on massive datasets. This talk will cover when and why to use DSE search, best practices, data modeling and performance tuning/optimization. Also covered will be a deep dive into how DSE Search operates, and the fundamentals of bitmap indexing.
This document provides an overview of how to retrieve information from Apache Solr. It discusses various query types and parameters including basic queries, matching multiple terms, fuzzy matching, range searches, sorting, faceting, and techniques for tuning relevance. The topics are covered through examples and explanations of Solr's query syntax and how it handles indexing and searching documents.
- The document provides an overview of Apache Solr, an open source enterprise search platform. It discusses how to install and configure Solr, load sample data, and perform various search queries. It also offers tips for advanced search functionality, indexing, and scaling Solr for large datasets.
The document discusses remote procedure calls (RPC) and web services. It describes how RPC works by defining an interface and using stubs to make synchronous function calls between a client and server. It also explains the basic components of web services, including SOAP for messaging, WSDL for interface definition, and UDDI for service discovery. The document provides examples of how to implement web services using Java.
SOAP is a protocol for invoking methods on servers and exchanging structured information. It uses XML and HTTP to define an envelope, encoding rules, and conventions to represent method calls and responses. SOAP allows applications to communicate over a variety of underlying protocols and platforms and is simple, extensible and independent of any programming model.
HTTP is the protocol used to transmit data over the web. It is stateless and requires sessions to track state. Requests and responses use headers to transmit metadata. Sensitive data should only be sent over HTTPS and only through POST, PUT, PATCH requests never in the URL query string. Response headers like HSTS, CSP, and CORS help secure applications by controlling caching, framing, and cross-origin requests.
The document provides an overview of client-server technology, networking concepts like sockets and remote procedure calls, XML, web services, SOAP, and RESTful architectures. It defines key terms like web services, SOAP, WSDL, UDDI, and REST. It describes how SOAP uses XML to define an envelope and headers to package messages and how REST relies on lightweight HTTP to perform CRUD operations on resources identified by URIs.
The document discusses mashups and various technologies used to create them such as Flex, E4X, HTTPService, crossdomain.xml, and AMF. It provides examples of using APIs from Amazon, Flickr, Yahoo, and Google to retrieve and combine data from multiple sources into new applications. It also discusses platforms like Yahoo Pipes that allow creating mashups visually without programming.
The document provides an overview of web services and related technologies including JAXB, SOAP, WSDL, XML-RPC, and SOAP. It defines key concepts such as service description, discovery, and invocation. It describes the SOAP envelope and how SOAP messages are exchanged over HTTP. It also summarizes WSDL elements and how WSDL is used to describe web service interfaces, bindings and endpoints.
The document provides an overview of web services and related technologies including JAXB, SOAP, WSDL, XML-RPC, and SOAP. It defines key concepts such as service description, discovery, and invocation. It describes the layers of the conceptual web services stack including network, messaging, service description, publication, discovery, and quality of service. It also provides examples of SOAP messages and faults.
The Enterprise Data Lake has become the defacto repository of both structured and unstructured data within an enterprise. Being able to discover information across both structured and unstructured data using search is a key capability of enterprise data lake. In this workshop, we will provide an in-depth overview of HDP Search with focus on configuration, sizing and tuning. We will also deliver a working example to showcase the usage of HDP Search along with the rest of platform capabilities to deliver real world solution.
Basics of Solr and Solr Integration with AEM6DEEPAK KHETAWAT
This document provides an introduction and overview of Solr and its integration with AEM. It discusses search statistics to motivate the need for search. It then defines Solr and describes its key features and architecture. It covers topics like indexing, analysis, searching, cores, configurations files and queries. It also discusses setting up Solr with Linux and Windows. Finally, it discusses integrating Solr with AEM, including configuring an embedded Solr server and external Solr integration using a custom replication agent. Exercises are provided to allow hands-on experience with Solr functionality.
This document discusses HTTP and HTTPS protocols. It provides information on web servers, HTTP requests and responses, status codes, headers, methods, and SSL/TLS encryption. The key points are:
- HTTP is an application layer protocol for distributed, collaborative hypermedia information systems. It uses a request-response protocol to transfer data between clients and servers.
- HTTP requests consist of a start line with method, URI and version, followed by headers and an optional message body. Common methods are GET, POST, PUT, DELETE.
- HTTP responses contain a start line with status code and reason, followed by headers and an optional message body. Status codes indicate success, redirection, client or server errors.
This document summarizes a Solr Recipes Workshop presented by Erik Hatcher of Lucid Imagination. It introduces Lucene and Solr, describes how to index different content sources into Solr including CSV, XML, rich documents, and databases, and provides an overview of using the DataImportHandler to index from a relational database.
This document discusses various techniques for handling form data submitted to servlets, including reading parameters, handling missing or malformed data, and filtering special characters.
It provides code examples of:
1) Reading individual and all parameters submitted via GET and POST.
2) Checking for missing parameters and using default values. It shows code for a resume posting site that uses default fonts/sizes if values are missing.
3) Filtering special HTML characters like < and > from parameter values before displaying them. It demonstrates a code sample servlet that properly filters values.
The document discusses strategies for handling missing or malformed data like using default values, redisplaying the form, and covering more advanced options using frameworks
The document discusses SPARQL, a query language for RDF data. It describes the key components of SPARQL, including its specification, query types, results format, and protocol. It also covers implementation issues for SPARQL services and provides examples of using SPARQL to query RSS feeds, geographical data, and more. Extensions discussed include querying by reference, XSLT transformation of results, and a JSON results format.
The document provides information about Apache Solr, an open source search platform written in Java. It discusses how Solr functions, how to install and configure it, options for indexing and querying data, and examples of common Solr operations like search, filtering, faceting and highlighting results.
This presentation lays out the concept of the traditional web, the improvements web 2.0 have brought about, etc.
I have attempted to explain RIA as well.
The main part of this presentation is centered around ajax, its uses, advantages / disadvantages, framework considerations when using ajax, java-script hijacking, etc.
Hopefully it should be a good read as an intro doc to RIA and Ajax.
An Overview on PROV-AQ: Provenance Access and QueryOlaf Hartig
The slides which I used at the Dagstuhl seminar on Principles of Provenance (Feb.2012) for presenting the main contributions and open issues of the PROV-AQ document created by the W3C provenance working group.
2. Why does search matter? Then: Most of the data encountered created for the web Heavy use of a site ‘s search function considered a failure in navigation Now: Navigation not always relevant Less patience to browse Users are used to “navigation by search box” Confidential 2
3. What is SOLR Open source enterprise search platform based on Apache Lucene project. REST-like HTTP/XML and JSONAPIs Powerful full-text search, hit highlighting, faceted search Database integration, and rich document (e.g., Word, PDF) handling Dynamic clustering, distributed search and index replication Loose Schema to define types and fields Written in Java5, deployable as a WAR Confidential 3
4. Public Websites using Solr Mature product powering search for public sites like Digg, CNet, Zappos, and Netflix See here for more information: http://wiki.apache.org/solr/PublicServers Confidential 4
5. Architecture 5 Admin Interface HTTP Request Servlet Update Servlet Standard Request Handler Disjunction Max Request Handler Custom Request Handler XML Update Interface XML Response Writer Solr Core Update Handler Caching Config Schema Analysis Concurrency Lucene Replication Confidential
6. Starting Solr We need to set these settings for SOLR: solr.solr.home: SOLR home folder contains conf/solrconfig.xml solr.data.dir: folder contains index folder Or configure a JNDI lookup of java:comp/env/solr/home to point to the solr directory. For e.g: java -Dsolr.solr.home=./solr -Dsolr.data.dir=./solr/data -jar start.jar (Jetty) Other web server, set these values by setting Java properties Confidential 6
9. How Solr Sees the World An index is built of one or more Documents A Document consists of one or more Fields Documents are composed of fields A Field consists of a name, content, and metadata telling Solr how to handle the content. You can tell Solr about the kind of data a field contains by specifying its field type Confidential 9
10. Field Analysis Field analyzers are used both during ingestion, when a document is indexed, and at query time An analyzer examines the text of fields and generates a token stream. Analyzers may be a single class or they may be composed of a series of tokenizer and filter classes. Tokenizersbreak field data into lexical units, or tokens Example: Setting all letters to lowercase Eliminating punctuation and accents, mapping words to their stems, and so on “ram”, “Ram” and “RAM” would all match a query for “ram” Confidential 10
11. Schema.xml schema.xml file located in ../solr/conf schema file starts with <schema> tag Solr supports one schema per deployment The schema can be organized into three sections: Types Fields Other declarations 11
13. Filter explanation StopFilterFactory: Tokenize on whitespace, then removed any common words WordDelimiterFilterFactory: Handle special cases with dashes, case transitions, etc. LowerCaseFilterFactory: lowercase all terms. EnglishPorterFilterFactory: Stem using the Porter Stemming algorithm. E.g: “runs, running, ran” its elemental root "run" RemoveDuplicatesTokenFilterFactory: Remove any duplicates: Confidential 13
14. Field Attributes Indexed: Indexed Fields are searchable and sortable. You also can run Solr 's analysis process on indexed Fields, which can alter the content to improve or change results. Stored: The contents of a stored Field are saved in the index. This is useful for retrieving and highlighting the contents for display but is not necessary for the actual search. For example, many applications store pointers to the location of contents rather than the actual contents of a file. Confidential 14
15. Field Definitions Field Attributes: name, type, indexed, stored, multiValued, omitNorms Dynamic Fields, in the spirit of Lucene! <dynamicFieldname="*_i" type="sint“ indexed="true" stored="true"/> <dynamicFieldname="*_s" type="string“ indexed="true" stored="true"/> <dynamicFieldname="*_t" type="text“ indexed="true" stored="true"/> 15
16. Other declaration <uniqueKey>url</uniqueKey>: urlfield is the unique identifier, is determined a document is being added or updated defaultSearchField: is the Field Solr uses in queries when no field is prefixed to a query term For e.g: q=title:Solr, If you entered q=Solr instead, the default search field would apply Confidential 16
17. Indexing data Using curl to interact with Solr: http://curl.haxx.se/download.html Here are different data formats: Solr'snative XML CSV (Character Separated Value) Rich documents through SolrCell JSON format Direct Database and XML Import through Solr'sDataImportHandler Confidential 17
18. Add / Update documents HTTP POST to add / update <add> <doc boost=“2”> <field name=“article”>05991</field> <field name=“title”>Apache Solr</field> <field name=“subject”>An intro...</field> <field name=“category”>search</field> <field name=“category”>lucene</field> <field name=“body”>Solr is a full...</field> </doc> </add> Confidential 18
19. Delete documents Delete by Id <delete><id>05591</id></delete> Delete by Query (multiple documents) <delete><query>manufacturer:microsoft</query></delete> Confidential 19
20. Commit / Optimize <commit/> tells Solr that all changes made since the last commit should be made available for searching. <optimize/> same as commit. Merges all index segments. Restructures Lucene 's files to improve performance for searching. Optimization is generally good to do when indexing has completed If there are frequent updates, you should schedule optimization for low-usage times An index does not need to be optimized to work properly. Optimization can be a time-consuming process. Confidential 20
21. Index XML documents Use the command line tool for POSTing raw XML to a Solr Other options: -Ddata=[files|args|stdin] -Durl=http://localhost:8983/solr/update -Dcommit=yes (Option default values are in red) Example: java -jar post.jar *.xml java -Ddata=args -jar post.jar "<delete><id>42</id></delete>" java -Ddata=stdin -jar post.jar java -Dcommit=no -Ddata=args-jar post.jar "<delete><query>*:*</query></delete>" Confidential 21
22. Index CSV file usingHTTP POST curl command does this with data-binaryand an appropriate content-type header reflecting that it's XML. Example: using HTTP-POST to send the CSV data over the network to the Solr server: curl http://localhost:9090/solr/update -H "Content-type:text/xml;charset=utf-8" --data-binary @ipod_other.xml Confidential 22
23.
24. Index rich document withSolr Cell Solr uses Apache Tika, framework for wrapping many different format parsers like PDFBox, POI, and others Example: curl "http://localhost:9090/solr/update/extract?literal.id=doc1&commit=true" -F "myfile=@tutorial.html" curl "http://localhost:9090/solr/update/extract?literal.id=doc1&uprefix=attr_&fmap.content=attr_content&commit=true" -F myfile=@tutorial.html (index html) Capture <div> tags separate, and then map that field to a dynamic field named foo_t: curl "http://localhost:9090/solr/update/extract?literal.id=doc2&captureAttr=true&defaultField=text&fmap.div=foo_t&capture=div" -F tutorial=@tutorial.pdf (index pdf) Confidential 24
25. Updating a Solr Index with JSON The JSON request handler needs to be configured in solrconfig.xml <requestHandler name="/update/json" class="solr.JsonUpdateRequestHandler"/> Example: curl "http://localhost:8983/solr/update/json?commit=true" --data-binary @books.json -H "Content-type:application/json" Confidential 25
30. Query response writers query responses will be written using the 'wt' request parameter matching the name of a registered writer. The "default" writer is the default and will be used if 'wt' is not specified in the request E.g.: http://localhost:8983/solr/select?q=title:monsters&wt=json&indent=true Confidential 30
31. Caching IndexSearcher’s view of an index is fixed Aggressive caching possible Consistency for multi-query requests filterCache – unordered set of document ids matching a query resultCache – ordered subset of document ids matching a query documentCache – the stored fields of documents userCaches – application specific, custom query handlers 31
40. Distributed and replicated Solrarchitecture (cont.) At this time, applications must still handle the process of sending the documents to individual shards for indexing The size of an index that a machine can hold depends on the machine's configuration (RAM, CPU, disk, and so on), the query and indexing volume, document size, and the search patterns Typically the number of documents a single machine can hold is in the range of several million up to around 100 million documents. Confidential 40
41. Advance Functionality Structure Data Store Data with the Data Import Handler (JDBC, HTTP, File, URL) Support for other programming languages (.Net, PHP, Ruby, Perl, Python,…) Support for NoSQL database like MongoDB, Cassandra? 41