is it unnecessary for 'flushlock' in Store?

2017-12-11 Thread JH Lin
ted flow(ie.unpossible flow) >>I just wonder is it redundant in fact though i think even if the removal of this lock will not significantly improve performance .<< any input is appreciated ,thanks --JH Lin

Re:why use at least one rowlock to update

2017-08-28 Thread JH Lin
ping... 在2017年08月28 17时55分, "JH Lin"写道: hi all,i dived into hbase source these days.when i read at the HRegion#doMiniBatchMutation(...) block then one question flashed in my mind:why did writer use at least one rowlock to implement mutation?(ie.Puts or Deletes etc) since if

why use at least one rowlock to update

2017-08-28 Thread JH Lin
hi all,i dived into hbase source these days.when i read at the HRegion#doMiniBatchMutation(...) block then one question flashed in my mind:why did writer use at least one rowlock to implement mutation?(ie.Puts or Deletes etc) since if i have 10 rows to update,then it means that 9 rows have no