private void onRetriableError(Throwable throwable) {
    logger.info("Retrying blob store operation due to exception: " + throwable.toString());
    azureMetrics.storageClientOperationRetryCount.inc();
  }
Handle any retriable errors. For now, we update the error metrics.
@param throwable associated with this error.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/StorageClient.java