Module solana_core::cluster_info [−][src]
The cluster_info module defines a data structure that is shared by all the nodes in the network over
a gossip control plane. The goal is to share small bits of off-chain information and detect and
repair partitions.
This CRDT only supports a very limited set of types. A map of Pubkey -> Versioned Struct. The last version is always picked during an update.
The network is arranged in layers:
- layer 0 - Leader.
- layer 1 - As many nodes as we can fit
- layer 2 - Everyone else, if layer 1 is
2^10, layer 2 should be able to fit2^20number of nodes.
Bank needs to provide an interface for us to query the stake weight
Structs
| ClusterInfo | |
| Node | |
| PruneData | |
| Sockets |
Enums
| ClusterInfoError |
Constants
| DATA_PLANE_FANOUT | The Data plane fanout size, also used as the neighborhood size |
| DEFAULT_CONTACT_DEBUG_INTERVAL_MILLIS | |
| DEFAULT_CONTACT_SAVE_INTERVAL_MILLIS | |
| GOSSIP_SLEEP_MILLIS | milliseconds we sleep for between gossip requests |
| MAX_BLOOM_SIZE | The maximum size of a bloom filter |
| MAX_CRDS_OBJECT_SIZE | |
| MAX_SNAPSHOT_HASHES | Maximum number of hashes in SnapshotHashes/AccountsHashes a node publishes such that the serialized size of the push/pull message stays below PACKET_DATA_SIZE. |
| MINIMUM_VALIDATOR_PORT_RANGE_WIDTH | |
| VALIDATOR_PORT_RANGE |
Functions
| compute_retransmit_peers | Turbine logic
1 - For the current node find out if it is in layer 1
1.1 - If yes, then broadcast to all layer 1 nodes
1 - using the layer 1 index, broadcast to all layer 2 nodes assuming you know neighborhood size
1.2 - If no, then figure out what layer the node is in and who the neighbors are and only broadcast to them
1 - also check if there are nodes in the next layer and repeat the layer 1 to layer 2 logic
Returns Neighbor Nodes and Children Nodes |
| make_accounts_hashes_message | |
| stake_weight_peers |