I sent it again, please check.
On Wed, Oct 9, 2019 at 6:31 AM Gao,Wei <wei....@arcserve.com> wrote:
> Hi oo4load,
> Where did you sent it to? Through this site or directly sent to my email?
> I received your pseudo codes last week just like this shown below:
>
> buildDatacenterAndServerModel(configurationFile) {
> enum zookeeperRole PARTICIPANT, OBSERVER, NONE, DOWN
> object datacenter has servers
> object server has zookeeperRole configuredRole, zookeeperRole activeRole
> parse(configurationFile) into (datacenter, servers);
> }
> shiftMajority(designatedSurvivorDatacenter) {
>
>
> designatedSurvivorDatacenter.someObserver.dynamicReconfigure(server=PARTICIPANT)
> otherDatacenter.someParticipant.dynamicReconfigure(server=OBSERVER)
> }
> balanceServerRoles() {
> if (designatedSurvivorDatacenter.hasMinimumQuorum)
> someParticipant.dynamicReconfigure(server=OBSERVER)
> if (quorumSize.aboveSafeLimit)
> someObserver.dynamicReconfigure(server=PARTICIPANT)
> //This is a lot more complicated than 2 simple commands, you need an
> algorithm or define several scenarios.
> }
>
>
> main() {
> buildDatacenterAndServerModel(configurationFile);
> while (IamLeader) {
> parse(zk.getData(“/zookeeper/config”)) into servers.configuredRole;
> foreach(server) getServerRole(“server:8081/commands/stat”) into
> servers.activeRole;
>
> foreach(server.activeRole=DOWN) dynamicReconfigure(server=OBSERVER);
> server.setConfiguredRole(OBSERVER);
>
> if(designatedSurvivorDatacenter != datacenter.hasMajority)
> shiftMajority(designatedSurvivorDatacenter);
> balanceServerRoles();
> }
> }
>
> If this above is not what you mean, would you please send it again?
> Really appreciate for your kindness!
>
>
>
>
>
> --
> Sent from: http://zookeeper-user.578899.n2.nabble.com/
>
