Module solana_gossip::cluster_info

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 fit 2^20 number of nodes.

Bank needs to provide an interface for us to query the stake weight

Structs

• ClusterInfo
• Node
• Sockets

Enums

• ClusterInfoError

Constants

• DEFAULT_CONTACT_DEBUG_INTERVAL_MILLIS
• DEFAULT_CONTACT_SAVE_INTERVAL_MILLIS
• GOSSIP_SLEEP_MILLIS
  milliseconds we sleep for between gossip requests
• MAX_ACCOUNTS_HASHES
  Maximum number of hashes in AccountsHashes a node publishes such that the serialized size of the push/pull message stays below PACKET_DATA_SIZE.
• MAX_BLOOM_SIZE
  The maximum size of a bloom filter
• MAX_CRDS_OBJECT_SIZE
• MAX_INCREMENTAL_SNAPSHOT_HASHES
  Maximum number of incremental hashes in SnapshotHashes 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

• make_accounts_hashes_message
• push_messages_to_peer