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Commit Graph

Author	SHA1	Message	Date
Arvid Hast	acb0f7a67b	p2p/simulations: improve README language (#24051 )	3 years ago
Felix Lange	dcae0d348b	p2p/simulations: fix a deadlock and clean up adapters (#17891 ) This fixes a rare deadlock with the inproc adapter: - A node is stopped, which acquires Network.lock. - The protocol code being simulated (swarm/network in my case) waits for its goroutines to shut down. - One of those goroutines calls into the simulation to add a peer, which waits for Network.lock. The fix for the deadlock is really simple, just release the lock before stopping the simulation node. Other changes in this PR clean up the exec adapter so it reports node startup errors better and remove the docker adapter because it just adds overhead. In the exec adapter, node information is now posted to a one-shot server. This avoids log parsing and allows reporting startup errors to the simulation host. A small change in package node was needed because simulation nodes use port zero. Node.{HTTP,WS}Endpoint now return the live endpoints after startup by checking the TCP listener.	6 years ago
Lewis Marshall	9feec51e2d	p2p: add network simulation framework (#14982 ) This commit introduces a network simulation framework which can be used to run simulated networks of devp2p nodes. The intention is to use this for testing protocols, performing benchmarks and visualising emergent network behaviour.	7 years ago

Author

SHA1

Message

Date

Arvid Hast

acb0f7a67b

p2p/simulations: improve README language (#24051 )

3 years ago

Felix Lange

dcae0d348b

p2p/simulations: fix a deadlock and clean up adapters (#17891 )

This fixes a rare deadlock with the inproc adapter:

- A node is stopped, which acquires Network.lock.
- The protocol code being simulated (swarm/network in my case)
  waits for its goroutines to shut down.
- One of those goroutines calls into the simulation to add a peer,
  which waits for Network.lock.

The fix for the deadlock is really simple, just release the lock
before stopping the simulation node.

Other changes in this PR clean up the exec adapter so it reports
node startup errors better and remove the docker adapter because
it just adds overhead.

In the exec adapter, node information is now posted to a one-shot
server. This avoids log parsing and allows reporting startup
errors to the simulation host.

A small change in package node was needed because simulation
nodes use port zero. Node.{HTTP,WS}Endpoint now return the live
endpoints after startup by checking the TCP listener.

6 years ago

Lewis Marshall

9feec51e2d

p2p: add network simulation framework (#14982 )

This commit introduces a network simulation framework which
can be used to run simulated networks of devp2p nodes. The
intention is to use this for testing protocols, performing
benchmarks and visualising emergent network behaviour.

7 years ago

3 Commits (s1na-patch-2)