Istio 101 : Managing network bottlenecks with the DestinationRule resource - TCP and HTTP connections -

We could use the destination rule parameters to help alleviate bottlenecks and slowness caused by a rise in requests for an application.

Some of the parameters that could be used in the destination rule Yaml file are as below:

  • shouldmaxRetries: Maximum retries on all the applications i the cluster.
  • maxConnections: Maximum HTTP and TCP connections to service.
  • http1MaxPendingRequests: Maximum pending HTTP requests to a service.
  • maxRequestsPerConnection: Maximum requests for each connnection.
  • http2MaxRequests: Maximum requests to a service.
Below is our Yaml file:


"ns1" refers to the namespace where our application "lives".


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