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A usage case of HBase
               for real-time application

                     Edward J.Yoon
udanax.org
          • URL shortener service
          • Provides HTTP, JSON and RESTful API
          • Used for some twitter clients and a
               number of web sites
          • Rows are increasing as almost 30 per
               second
          • Runs on 5 nodes HBase cluster
Block Diagram
                          Clients     ...
                     Apache Web Server

               Tomcat 1       Tomcat 2      ...
                              HBase
                          Hadoop HDFS
HBase Table Schema
               row      longURL:     creator:           clickLog:



                        longURL:     creator:     clickLog:{referrer url}
               3XqT
                      <LONG_URL>   <IP address>        <IP address>

                                                            ...
                        longURL:
               3xqS                     ...                 ...
                      <LONG_URL>
                ...                                         ...
MR and Hama BSP

          • Information-Flow Analysis
          • Web Structure Mining
          • User propensity Analysis
Hadoop Scheduler


          • FIFO: Queue-based scheduler
          • FSS: Fair share scheduler
fair share scheduler

          • Group jobs into “pools”
          • Assign each pool a guaranteed minimum
               share
          • Divide excess capacity evenly between
               pools
fair share scheduler

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Usage case of HBase for real-time application

  • 1. A usage case of HBase for real-time application Edward J.Yoon
  • 2. udanax.org • URL shortener service • Provides HTTP, JSON and RESTful API • Used for some twitter clients and a number of web sites • Rows are increasing as almost 30 per second • Runs on 5 nodes HBase cluster
  • 3. Block Diagram Clients ... Apache Web Server Tomcat 1 Tomcat 2 ... HBase Hadoop HDFS
  • 4. HBase Table Schema row longURL: creator: clickLog: longURL: creator: clickLog:{referrer url} 3XqT <LONG_URL> <IP address> <IP address> ... longURL: 3xqS ... ... <LONG_URL> ... ...
  • 5. MR and Hama BSP • Information-Flow Analysis • Web Structure Mining • User propensity Analysis
  • 6. Hadoop Scheduler • FIFO: Queue-based scheduler • FSS: Fair share scheduler
  • 7. fair share scheduler • Group jobs into “pools” • Assign each pool a guaranteed minimum share • Divide excess capacity evenly between pools