RFR: 1514: Add metrics for mailing list archive polling

Thu Jul 28 22:30:51 UTC 2022

On Thu, 28 Jul 2022 18:48:25 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

> This patch adds a new metrics counter tracking the polling rate for the MailmanListReader. I would like to get this live before trying to reduce the polling rate in SKARA-1513, so that any improvements can be accurately measured.

Marked as reviewed by ihse (Reviewer).

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PR: https://git.openjdk.org/skara/pull/1342