1, Java through a JDBC connection, hiveserver2 perform more slowly, look at the journal to perform to org. Every time. Apache hadoop. Graphs. JobSubmitter: [hiveserver2 - Background - the Pool: Thread - 108208] : date tokens for the job: job_local699565113_0540, caton,

2, after the restart hiveserver2 and faster speed, and after closing hiveserver2 instantaneous release of a large number of hard disk space,

Excuse me why executive slowed for a period of time, the restart again