Re: About ZooKeeper Dynamic Reconfiguration

[Chris T.]

Please reply to my private mail address from now.

On Thu, Oct 10, 2019 at 5:01 AM Gao,Wei  wrote:

> Hi Chris,
> I received your codes about zookeeper balancer. It seems that there are a
> few java class files missing. They include:
> nl.ing.profileha.util.EventCreator;
> nl.ing.profileha.util.FailsafeTriggeredException;
> nl.ing.profileha.util.StringUtils;
> nl.ing.profileha.util.Validator;
> nl.ing.profileha.util.shell.SystemCommandExecutorWithTimeout;
> nl.ing.profileha.zoomonitor.LocalConfig;
> nl.ing.profileha.util.httpGetRequester;
> ACLMode.java;
> ZookeeperTreeCache.java;
>
> Would you please send these class file to me?
> Really appreciate for your kindness!
> Thanks
>
>
>
>
> --
> Sent from: http://zookeeper-user.578899.n2.nabble.com/
>

Re: About ZooKeeper Dynamic Reconfiguration

[Gao,Wei]

Hi Chris,
I received your codes about zookeeper balancer. It seems that there are a
few java class files missing. They include:
nl.ing.profileha.util.EventCreator;
nl.ing.profileha.util.FailsafeTriggeredException;
nl.ing.profileha.util.StringUtils;
nl.ing.profileha.util.Validator;
nl.ing.profileha.util.shell.SystemCommandExecutorWithTimeout;
nl.ing.profileha.zoomonitor.LocalConfig;
nl.ing.profileha.util.httpGetRequester;
ACLMode.java;
ZookeeperTreeCache.java;

Would you please send these class file to me?
Really appreciate for your kindness!
Thanks




--
Sent from: http://zookeeper-user.578899.n2.nabble.com/

Re: About ZooKeeper Dynamic Reconfiguration

[Chris T.]

I sent it again, please check.

On Wed, Oct 9, 2019 at 6:31 AM Gao,Wei  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/
>