Hi, As we know , the zk connection could be created by the following method:
Configuration newConfig = new Configuration(originalConf); HConnection connection = HConnectionManager.getConnection(newConfig); One HConnection instance proxy to one Configuration instance. Under some scenarios, we can share Configuration instance, and also we can share the HConnection instance. Consider the following scenario: While the program running, there's so many scan operations. Each operation will be executed at a random time. There's two schemes: (Suppose the program shared one Configuation instance.) 1. Create one HTable at a time, after the scanning, delete the connection and close the HTable. 2. Create one HTable at a time, after the scanning ,only close the HTable. So remain the zk connection. (Maybe I can share the HTable instance, but it wasn't what I want to discuss here) Which is the best way? Or what the optimization method of when to delete Zk connection? Thanks! Jieshan Bean
