private static List <ZooKeeperInstance> CreateInstances(ZooKeeperEnsembleSettings settings, ILog log)
{
var instances = new List <ZooKeeperInstance>(settings.Size);
for (var i = 0; i < settings.Size; i++)
{
var clientPort = settings.InstancesPorts?[i] ?? FreeTcpPortFinder.GetFreePort();
var peerPort = FreeTcpPortFinder.GetFreePort();
var electionPort = FreeTcpPortFinder.GetFreePort();
var index = settings.StartingId + i;
var instanceDirectoryPath = "ZK-" + index;
if (!string.IsNullOrEmpty(settings.BaseDirectory))
{
instanceDirectoryPath = Path.Combine(settings.BaseDirectory, instanceDirectoryPath);
}
instanceDirectoryPath = Path.GetFullPath(instanceDirectoryPath);
instances.Add(new ZooKeeperInstance(index, instanceDirectoryPath, clientPort, peerPort, electionPort, log));
}
log.Info("Created instances: \n\t" + string.Join("\n\t", instances.Select(i => i.ToString())));
return(instances);
}
public static ZooKeeperEnsemble DeployNew([NotNull] ZooKeeperEnsembleSettings settings, [NotNull] ILog log, bool startInstances = true)
{
var ensemble = new ZooKeeperEnsemble(settings, log);
ensemble.Deploy(startInstances);
return(ensemble);
}
private ZooKeeperEnsemble([NotNull] ZooKeeperEnsembleSettings settings, [NotNull] ILog log)
{
this.log = (log ?? throw new ArgumentNullException(nameof(log))).ForContext <ZooKeeperEnsemble>();
if (settings.Size < 1)
{
throw new ArgumentOutOfRangeException(nameof(settings.Size), "Ensemble must have at least one instance.");
}
Instances = CreateInstances(settings, this.log);
}
private ZooKeeperEnsemble([NotNull] ZooKeeperEnsembleSettings settings, [NotNull] ILog log)
{
this.log = (log ?? throw new ArgumentNullException(nameof(log))).ForContext <ZooKeeperEnsemble>();
if (settings.Size < 1)
{
throw new ArgumentOutOfRangeException(nameof(settings.Size), "Ensemble must have at least one instance.");
}
if (settings.InstancesPorts != null && settings.InstancesPorts.Count != settings.Size)
{
throw new ArgumentException(
"You should either specify port for every instance or specify none",
nameof(settings.InstancesPorts));
}
Instances = CreateInstances(settings, this.log);
}
public static ZooKeeperEnsemble DeployNew([NotNull] ZooKeeperEnsembleSettings settings, [NotNull] ILog log, bool startInstances = true)
{
ZooKeeperEnsemble ensemble = null;
Retrier.RetryOnException(() =>
{
ensemble = new ZooKeeperEnsemble(settings, log);
ensemble.Deploy(startInstances);
},
3,
"Unable to start Zookeeper ensemble",
() =>
{
log.Warn("Retrying Zookeeper.LocalEnsemble deployment...");
ensemble?.Dispose();
});
return(ensemble);
}