zoukankan      html  css  js  c++  java
  • Solandra:基于Solr和Cassandra的实时分布式搜索引擎

    Solandra,从别名上就能看出来,其实它就是结合了 Solr 与 Cassandra 的实时搜索引擎程序。

    其特性如下:

    • 支持Solr的大多数默认特性 (search, faceting, highlights)
    • 数据复制,分片,缓存及压缩这些都由Cassandra来进行
    • Multi-master (任意结点都可供读写)
    • 实时性高,写操作完成即可读到
    • Easily add new SolrCores w/o restart across the cluster 轻松添加及重启结点

    这是来自官方的介绍:

    Solandra is a real-time distributed search engine built on Apache Solr and Apache Cassandra.

    At its core, Solandra is a tight integration of Solr and Cassandra, meaning within a single JVM both Solr and Cassandra are running, and documents are stored and disributed using Cassandra's data model.

    Solandra makes managing and dynamically growing Solr simple(r).

    For more information please see the wiki

    Requirements:

    Java >= 1.6

    Features:

    • Supports most out-of-the-box Solr functionality (search, faceting, highlights)
    • Replication, sharding, caching, and compaction managed by Cassandra
    • Multi-master (read/write to any node)
    • Writes become available as soon as write succeeds
    • Easily add new SolrCores w/o restart across the cluster

    Getting started:

    The following will guide you through setting up a single node instance of Solandra.

    From the Solandra base directory:

    mkdir /tmp/cassandra-data ant cd solandra-app; bin/solandra 

    Now that Solandra is running you can run the demo:

    cd http://www.cnblogs.com/reuters-demo ./1-download_data.sh ./2-import_data.sh While data is loading, open the file ./website/index.html in your favorite browser. 

    Embedding in an existing cassandra distribution

    To use an existing Cassandra distribution perform the following steps.

    1. Download your Cassandra distribution
    2. Unzip it the directory of your choice
    3. Run the following solandra ant task to deploy the necessary files into the unzipped dir

      ant -Dcassandra={unzipped dir} cassandra-dist

    4. You can now start Solr within Cassandra by using $CASSANDRA_HOME/bin/solandra command. Cassandra now takes two optional properties: -Dsolandra.context and -Dsolandra.port for the context path and the Jetty port.

    Limitations

    Solandra uses Solr's built in distributed searching meachanism. Most of its limitations are covered here:

    http://wiki.apache.org/solr/DistributedSearch#Distributed_Searching_Limitations

  • 相关阅读:
    使用 pymssql 调用存储过程
    控制input框的输入格式
    Pycharm创建指定版本的Django
    div在页面中居中显示
    odoo12--centos7搭建odoo12
    odoo12--models模型
    odoo12--创建第一个模块
    odoo12模块目录
    odoo12代码目录说明
    win10安装odoo12教程
  • 原文地址:https://www.cnblogs.com/ibook360/p/2261909.html
Copyright © 2011-2022 走看看