private static void RegisterRemovalForReplication(RemoveRequest request,
PersistentHashTableActions actions,
ValueVersion version)
{
foreach (var hash in actions.GetReplicationHashes(request.Key, version))
{
actions.AddReplicationRemovalInfo(
request.Key,
version,
hash
);
}
}
private static bool MarkSegmentAsAssignedToEndpoint(PersistentHashTableActions actions,
NodeEndpoint endpoint,
int segment)
{
var result = actions.Put(new PutRequest
{
Key = Constants.MovedSegment + segment,
OptimisticConcurrency = true,
Bytes = endpoint.ToBytes(),
});
return(result.ConflictExists == false);
}
private static void AssertSegmentNotMoved(PersistentHashTableActions actions,
int?segment)
{
if (segment < 0)
{
throw new ArgumentNullException("segment", "Segment cannot be negative");
}
var values = actions.Get(new GetRequest
{
Key = Constants.MovedSegment + segment
});
if (values.Length > 0)
{
throw new SeeOtherException("This key belongs to a segment assigned to another node")
{
Endpoint = NodeEndpoint.FromBytes(values[0].Data)
};
}
}
