I think you need not to worry about the leader election and who was the previous leader. Quorum should be able to handle it when it comes up. Neither you need to validate who becomes new leader.
Before you delete any files, please make sure you keep the back up so if your experiment fails you do not end up with no files to try again. That said.. once all dat is backed up I would go and delete all the snapshot.* and log.* except latest one. In your case I will leave snapshot.d0002bf88 in the data folder. Please note the number at the end of file.. it is the transaction number after which this snap shout was created. On each of your ZK server you will have a file for which this number will be in the same range. Keep those file on the server. I do not think you need to initialize any data manually.. once snapshot files are there in place you can start the server and most likely it will come up. All the best. On Mon, Feb 22, 2016 at 7:08 AM, AALISHE <[email protected]> wrote: > Hi Vikrant/All, > > I have some thought about the steps to share: > > > 1- Since this is a 3 node cluster .... I must Identify which one is the > (leader ZK node) > 2- Stop ZK from cloudera manager > 3- Go to snapshot folder (on the leader) and take a backup a side > 4- delete the files (snapshot + log) with the newest date stamp? (on all 3 > nodes) > 5- Start ZK and make sure the previous leader is the current leader ? or > maybe I should initialize ZK data ? > > > > Can anyone take a look please and confirm/correct the above steps. > > > cheers! > > On Mon, Feb 22, 2016 at 4:31 PM, vikrant singh <[email protected]> > wrote: > > > I have not tried it, but as I understand following should be the steps to > > follow. > > Step1 - back up these snapshot files > > Step2 - choose the snapshot files from which you want to recover. > > Step3 - remove all other files from data dir > > Step4 - Start server > > > > On Mon, Feb 22, 2016 at 2:04 AM, AALISHE <[email protected]> wrote: > > > > > Anything anyone please? > > > On Feb 21, 2016 5:51 PM, "AALISHE" <[email protected]> wrote: > > > > > > > > > > >> thanks Ted, > > > > > > > > > > > > > > > > this is the link http://pastebin.com/CgGi45EN > > > > > > > > > > > > cheers! > > > > > > > > > >
