Hi all, I'm developing some new features based on HBase-1.2.9 and found a weird thing that, in class HMaster some properties are volatile, while others are not volatile and I haven't found any synchronization for them. As far as I know, volatile is use to to guarantee visibility among multiple threads. There is no doubt HMaster is accessed by many threads. So, why there are only a small part of variables are volatile?
- When should we use volatile modifier in HMaster? yuhang li