Zhijie Shen created YARN-3134:

             Summary: Exploiting the option of using Phoenix to access HBase 
                 Key: YARN-3134
                 URL: https://issues.apache.org/jira/browse/YARN-3134
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: timelineserver
            Reporter: Zhijie Shen
            Assignee: Zhijie Shen

Quote the introduction on Phoenix web page:

Apache Phoenix is a relational database layer over HBase delivered as a 
client-embedded JDBC driver targeting low latency queries over HBase data. 
Apache Phoenix takes your SQL query, compiles it into a series of HBase scans, 
and orchestrates the running of those scans to produce regular JDBC result 
sets. The table metadata is stored in an HBase table and versioned, such that 
snapshot queries over prior versions will automatically use the correct schema. 
Direct use of the HBase API, along with coprocessors and custom filters, 
results in performance on the order of milliseconds for small queries, or 
seconds for tens of millions of rows.

It may simply our implementation read/write data from/to HBase, and can easily 
build index and compose complex query.

This message was sent by Atlassian JIRA

Reply via email to