RestartFlow.onFailuresWithBackoff

Wrap the given FlowFlow with a FlowFlow that will restart it when it fails using an exponential backoff. Notice that this FlowFlow will not restart on completion of the wrapped flow.

Error handling

Signature

RestartFlow.onFailuresWithBackoffRestartFlow.onFailuresWithBackoff

Description

Wrap the given FlowFlow with a FlowFlow that will restart it when it fails using exponential backoff. The backoff resets back to minBackoff if there hasn’t been a restart within maxRestartsWithin (which defaults to minBackoff if max restarts).

This FlowFlow will not emit any failure as long as maxRestarts is not reached. The failure of the wrapped FlowFlow will be handled by restarting it. However, any termination signals sent to this FlowFlow will terminate the wrapped FlowFlow, if it’s running, and then the FlowFlow will be allowed to terminate without being restarted.

The restart process is inherently lossy, since there is no coordination between cancelling and the sending of messages. A termination signal from either end of the wrapped FlowFlow will cause the other end to be terminated, and any in transit messages will be lost. During backoff, this FlowFlow will backpressure.

This uses the same exponential backoff algorithm as BackoffOptsBackoffOpts.

See also:

• RestartSource.withBackoff
• RestartSource.onFailuresWithBackoff
• RestartFlow.withBackoff
• RestartSink.withBackoff

Reactive Streams semantics