Hi Sujee, QuorumJournalManager implements the JournalManager interface. The javadoc on JournalManager may help you understand. Also, I would recommend understanding the local-disk implementation (FileJournalManager) before digging too deep into the QuorumJournalManager, which is a bit more complex.
-Todd On Tue, Oct 23, 2012 at 3:31 PM, Sujee Maniyam <su...@sujee.net> wrote: > Hi devs, > I am reading through the HA code, trying to understand how the > editlogs propagate. > > I have looked at the following classes > EditLogTailer > JournalNode > QuorumJournalManager > NameNode > FSNameSystem > > I see FSNameSystem is using FSImage editlog. where is the tie-in > between NN and QuorumJournal? > > thanks > Sujee Maniyam > > http://sujee.net > -- Todd Lipcon Software Engineer, Cloudera
