[4.x] Move fetch of metrics from endpoint so it too is retried #5143
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Resolves #4976
The earlier (incomplete) fix added a retry but left the fetch of the metrics from the
/metrics
endpoint outside the retry, so the same value would be used during retries (which would never have different results).This PR moves the fetch of the metrics output so it is performed each time through the retry loop.
Signed-off-by: tim.quinn@oracle.com tim.quinn@oracle.com