Application scenario and connection Analysis of HBase Java Client Internal Thread Pool
This article mainly introduces "HBase Java Client internal thread pool application scenario and connection analysis". In daily operation, I believe many people have doubts about HBase Java Client internal thread pool application scenario and connection analysis. The editor consulted all kinds of materials and sorted out simple and useful operation methods. I hope it will be helpful to answer the doubts of "HBase Java Client internal thread pool application scenario and connection analysis". Next, please follow the editor to study!
Thread pool related content is only used for calling batch related methods.
The following figure shows the internal parameters of the Dao object connection object
Construct Connection
In the distributed environment, the client needs to access the HBase through the address and port of the ZooKeeper to obtain the current active Master and the required RegionServer address. Therefore, you need to configure the address and port of ZooKeeper with the HBaseCongifiguration class before using the Connection class to establish a connection.
About the code connection is the singleton mode
@ Bean
Public Connection instance () throws Exception {
Configuration config = HBaseConfiguration.create ()
Config.set (HConstants.ZOOKEEPER_QUORUM, zooKeeper)
Config.set (HConstants.ZOOKEEPER_CLIENT_PORT, "2181")
Config.set (HConstants.ZOOKEEPER_ZNODE_PARENT, nodeParent)
Return ConnectionFactory.createConnection (config, Executors.newFixedThreadPool (20);}
Thread pools are created for batch operations
Gets the Table object if the thread pool pool parameter is not passed. Will generate one by default.
How to find region based on rowkey?
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