+1 迟成 <chich...@meituan.com.invalid> 于2021年8月3日周二 下午6:16写道：
> The replay NPE bug has caused many cases that make all FE down. > To avoid this from happening, It’s necessary to check null when get DB and > Table object at any time. > I suggest that returns Optional object when get DB and Table object to > normalize the null check. DdlException and AnalysisException can be throwed > by Optional.orElseThrow. Replay routine can log a warning when meet the > unexpected absence of DB and Table to trace possible cases of metadata > inconsistency. > > =。= > >
