/// <summary>
/// Refreshes the replication information.
/// </summary>
/// <param name="commands">The commands.</param>
public void RefreshReplicationInformation(ServerClient commands)
{
lock (replicationLock)
{
lastReplicationUpdate = DateTime.UtcNow;
var document = commands.DirectGet(commands.Url, RavenReplicationDestinations);
failureCounts[commands.Url] = new IntHolder(); // we just hit the master, so we can reset its failure count
if (document == null)
{
return;
}
var replicationDocument = document.DataAsJson.JsonDeserialization <ReplicationDocument>();
replicationDestinations = replicationDocument.Destinations.Select(x => x.Url).ToList();
foreach (var replicationDestination in replicationDestinations)
{
IntHolder value;
if (failureCounts.TryGetValue(replicationDestination, out value))
{
continue;
}
failureCounts[replicationDestination] = new IntHolder();
}
}
}
/// <summary>
/// Updates the replication information if needed.
/// </summary>
/// <param name="serverClient">The server client.</param>
public Task UpdateReplicationInformationIfNeeded(ServerClient serverClient)
{
if (conventions.FailoverBehavior == FailoverBehavior.FailImmediately)
{
return(new CompletedTask());
}
if (lastReplicationUpdate.AddMinutes(5) > SystemTime.UtcNow)
{
return(new CompletedTask());
}
lock (replicationLock)
{
if (lastReplicationUpdate.AddMinutes(5) > SystemTime.UtcNow)
{
return(new CompletedTask());
}
var taskCopy = refreshReplicationInformationTask;
if (taskCopy != null)
{
return(taskCopy);
}
return(refreshReplicationInformationTask = Task.Factory.StartNew(() => RefreshReplicationInformation(serverClient))
.ContinueWith(task =>
{
if (task.Exception != null)
{
log.ErrorException("Failed to refresh replication information", task.Exception);
}
refreshReplicationInformationTask = null;
}));
}
}
public Operation(ServerClient serverClient, long id)
{
client = serverClient;
this.id = id;
}
