Just a reminder, will merge this PR tomorrow if no more concerns. Thanks. Regards
张铎(Duo Zhang) <palomino...@gmail.com> 于2021年9月3日周五 下午10:19写道: > The related issue is HBASE-15549, where we decided to not let HMaster > carry regions. > > After some prior works, such as modifying balancer, refactoring connection > registry, replementing maintenance mode related code, etc, now we arrive > the last step, where we could finally decouple HMaster and HRegionServer, > which means now HMaster does not need to extends HRegionServer any more. > > This could greatly reduce the complexity of the code in both HMaster and > HRegionServer. The current code is very very flaky as it is very easy to > introduce cyclic dependencies and hang the start up of HMaster, as when > starting a HRegionServer, we need to register to HMaster first but HMaster > itself is a HRegionServer... > > The last PR is > > https://github.com/apache/hbase/pull/3612 > > It is kinda big so I posted this email here to attract more reviewers. > > Feel free to reply here directly or on the PR about your thoughts. > > Thanks. Regards >