Dynalite takes a long time to close (5 seconds)

[reconbot]

Describe the issue
When using dynalite for testing I open a new dynalite for each test case and create new in memory tables.

async function startserver() {
  const server = createServer({ createTableMs: 0, deleteTableMs: 0, updateTableMs: 0 })
  const port = await getPortPromise() // `port-finder` is magic btw
  await new Promise((resolve) => server.listen(port, resolve))
  return server
}

And then close it after each test case

async function stopServer(server) {
   await new Promise((resolve, reject) => server.close(err => err ? reject(err) : resolve()))
}

However the close takes forever! So I often skip it and pray. But why does it take forever? I believe the AWS-SDK keeps the connection open. Since it's an http server you can actually close all connections which reduces the time to close to mere milliseconds.

async function stopServer(server) {
   const closePromise = new Promise((resolve, reject) => server.close(err => err ? reject(err) : resolve()))
   server.closeAllConnections()
   await closePromise
}

This isn't so much a bug as something people will run into so I wanted to document it.

[ryanblock]

Yeah, not a bug with this library, it’s an issue with how AWS folks changed the Node keepalive logic between v2 and v3. See: architect/functions@f80010f