Hi Aleksey, This field tracks readers - objects which contain node IDs with near cache which has read this key. If an entry contains a reader, this reader must be updated as well alongside with backup nodes.
See GridCacheContext#dhtMap(UUID, AffinityTopologyVersion, GridDhtCacheEntry, GridCacheVersion, IgniteLogger, Map<ClusterNode,List<GridDhtCacheEntry>>, Map<ClusterNode,List<GridDhtCacheEntry>>) --AG 2017-03-22 18:03 GMT+03:00 ALEKSEY KUZNETSOV <alkuznetsov...@gmail.com>: > Hi all! There is a field rdrs in class GridDhtCacheEntry. Why do we need it > ? > -- > > *Best Regards,* > > *Kuznetsov Aleksey* >