Commit Graph

3 Commits

Author SHA1 Message Date
Flavio Crisciani 60b5add4af NetworkDB allow setting PacketSize
- Introduce the possibility to specify the max buffer length
  in network DB. This will allow to use the whole MTU limit of
  the interface

- Add queue stats per network, it can be handy to identify the
  node's throughput per network and identify unbalance between
  nodes that can point to an MTU missconfiguration

Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
2017-07-26 13:44:33 -07:00
Jana Radhakrishnan 77abea9c1e Use protobuf in networkdb core messages
Convert all networkdb core message types from go message types to
protobuf message types. This faciliates future modification of the
message structure without breaking backward compatibility.

Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
2016-05-17 09:18:24 -07:00
Jana Radhakrishnan 28f4561e3f Add network scoped gossip database
Network DB is a network scoped gossip database built
on top of hashicorp/memberlist providing an eventually
consistent state store.

It limits the scope of the gossip and periodic bulk syncing
for table entries to only the nodes which participate in the
network to which the gossip belongs. This designs make the
gossip layer scale better and only consumes resources for the
network state that the node participates in.

Since the complete state for a network is maintained by all nodes
participating in the network, all nodes will eventually converge
to the same state.

NetworkDB also provides facilities for the users of the package to
watch on any table (or all tables) and get notified if there are
state changes of interest that happened anywhere in the cluster when
that state change eventually finds it's way to the watcher's node.

Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
2016-04-08 12:58:09 -07:00