Hi, OpenWhisk developers.
I submitted a PR to openwhisk-package-alarms. https://github.com/apache/openwhisk-package-alarms/pull/198 With the existing alarm package, the alarms with 5-field crons fire on the top of the minute. Then a heavy load can occur in the provider worker when the alarms converge on a specific time. My issue: https://github.com/apache/openwhisk-package-alarms/issues/196#issue-480059133 My PR suggests handling this problem by applying the distribution of alarms within one minute. This satisfies the given conditions(cron) and reduces the load at the same time. When the provider detects a new 5-field cron alarm with a parameter strict=false, it converts the cron into 6 fields by adding a specific value between 0-59 as a second-unit field. This gives a few seconds of spaces among alarms, the load of the providers gets reduced as a result. The injected value looks random, but actually, it's a hash of trigger.name. So the intervals of each alarm are kept consistently before and after the redeployment or the re-registration. Please take a look and leave some comments. Thanks Jeongmin
