Arachne
Arachne is an open-source web crawler framework developed by Internet Archive. It is focused on efficiently downloading web pages and detecting changes across periodic crawls. Arachne is built on Scala and Apache Spark to enable distributed crawling at scale.
Arachne: Open-Source Web Crawler Framework
A scalable web crawler framework for efficient downloading and change detection, built on Scala and Apache Spark.
What is Arachne?
Arachne is an open-source web crawler framework developed by Internet Archive in 2018. It is designed specifically for building high-performance and scalable web crawlers that can efficiently download web pages and detect changes across periodic crawls.
Some key features and capabilities of Arachne include:
- Built on Scala and Apache Spark to enable distributed crawling across clusters
- Integrated change detection using techniques like SHA1 hash comparison to identify updated web pages
- Flexible plugin architecture to support custom processing logic for downloaded pages
- Scalable datastore integration like HDFS to store crawled content
- High throughput of up to 1 billion pages per day per cluster
- Domain-specific focused crawlers possible by configuring seed lists, regex rules etc.
- Support for polite politeness policy enforcement
- Detailed logging and stats collection for monitoring crawler health
Arachne is well-suited for building archive-quality web crawlers, focused topical crawlers, or applying custom analytics on web page corpus. Its distributed capabilities can scale to handle even the largest web crawling needs.
Arachne Features
Features
- Distributed web crawling
- Efficient change detection
- Built on Scala and Apache Spark
- Open source framework
Pricing
- Open Source
Pros
Scalable
Efficient
Free and open source
Cons
Requires expertise with Scala and Spark
Limited documentation and support
Official Links
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