v7.3.0

Changed

• Changed the default for agentOptions.scheduling to "lifo"

  This is already the default in Node v15.6 but can reduce latency caused by
  sockets expiring, especially with larger connection pools and infrequent
  requests.

• Removed keepAlive-specific throughput optimization

  Previously arangojs would allow agentOptions.maxSockets * 2 concurrent
  requests, to optimize socket reuse by avoiding idle time. This behavior
  could trigger deadlocks when attempting to perform multiple transactions
  in parallel and only marginally improved throughput in some high-load
  scenarios. The connection pool size now always reflects the value set in
  agentOptions.maxSockets regardless of whether keepAlive is enabled.

• Changed agentOptions.maxSockets default value when using ROUND_ROBIN

  As the connection pool is shared across all server connections when using
  ROUND_ROBIN load balancing, the default value of 3 is too limiting for
  most scenarios involving multiple coordinators. When passing multiple URLs
  via the url option and specifying ROUND_ROBIN load balancing, arangojs
  will now default this value to url.length * 3 instead.