BufferControlBlock may block all fragment handle threads leads to be out of work modify include: BufferControlBlock cancel after max timeout StmtExcutor notify be to cancel the fragment when unexcepted occur more details see issue #16203
BufferControlBlock may block all fragment handle threads leads to be out of work modify include: BufferControlBlock cancel after max timeout StmtExcutor notify be to cancel the fragment when unexcepted occur more details see issue #16203