About Solr

• Based on Lucene, server-ization of Lucene
• HTTP request processing for index and query
• Has a web-based administrative interface
• Configure file and schema file using  XML
• Faceting of query results
• Spell checking function
• More like this function
• Distributed solr server

Home page

• http://lucene.apache.org/solr/

Solr books

• 「Apache Solr 入門」
• Solr 1.4 Enterprise Search Server

To be continued …

Find all you want?

• No SQL　http://nosql-database.org/

Some other useful knowledges:

• Google map reduce  http://labs.google.com/papers/mapreduce.html
• Google big table  http://labs.google.com/papers/bigtable.html
• Google file system http://labs.google.com/papers/gfs.html
• Google Chubby  http://labs.google.com/papers/chubby.html

Hadoop:

• Open source, reliable, distributed computing

Two Core Components:

• HDFS: Distributed replicated file system, Self-healing high-bandwidth clustered storage, just stores bytes,
• Map/Reduce: API for parallel computing, Fault-tolerant distributed processing, a batch system

Feature:

• Hadoop scales linearly with data size or analysis complexity

TO Not NoSQL

• Hive project adds SQL support to Hadoop
• HiveQL compiles to a query plan
• Query plan executes as MapReduce jobs

Hadoop users

• Yahoo, Facebook, Twitter

Other words

• Zookeeper – distributed synchronization
• Avro – Data Serialization / RPC
• H-BASE –  structured distributed database for horizontally scalable FS

EcoSystem of Hadoop

Useful links:

http://hadoop.apache.org/common/

http://www.cloudera.com/

http://www.slideshare.net/cloudera/tokyo-nosqlslidesonly

http://www.slideshare.net/xefyr/introduction-to-hadoop-hbase-and-nosql

http://www.slideshare.net/adorepump/hbase-nosql