Big Data Advanced 1

The APPEND function in 1.1 hbase

1.2 API Atom Operation put function in HBase

Note: Atomic operation, first use Checkeand function to check, first check, then operation.

1.3 API Atomic Operation Delete function in HBase

1.4 API Atomic Action counter function in HBase

2 HBase Filters Filter

The role of the filter is to filter the user's needs on the server side, filtering the data to reduce the burden of transmission data return, the general user 10~20 a column table. It should be noted that the amount of data in the use of caution, but should be avoided in the table design process.

3 function class design with map only

Used for protocols, data splitting, using Distribute-cache to refer to third-party files and jar packages.

4 Bulkload function of HBase

Large amounts of data are quickly imported into hbase at once.

Big Data Advanced 1