Exponential schedule

Wait exponentially more time between attempts, using the following formula:

<multiplier> * (<base> ^ <attempts>)

The attempt counter starts at 0, so the first wait is is for <multiplier> seconds.

Specifying durations

Durations in attempt can include units, such as 5min. Durations without units are assumed to be in seconds. 300 would be interpreted as 300 seconds. Multiple units can be used together such as 1hr30m. You may include whitespace, so 1hr 30m is also valid.

The following units are supported:

• Hours (h or hr)
• Minutes (m or min)
• Seconds (s)
• Milliseconds (ms)
• Nanoseconds (ns)

Example

attempt exponential /bin/false
attempt exp /bin/false

# Change the multiplier from the default of 1s to 2s
attempt exponential -x 2s /bin/false
attempt exponential --multiplier 2s /bin/false

# Change the exponential base from the default of 2 to 5
attempt exponential -b 5 /bin/false
attempt exponential --base 5 /bin/false

Arguments

-b --base <BASE>

The base of the exponential function. The default is 2, corresponding to doubling the wait time between attempts.

-x --multipler <MULTIPLIER>

Scale of the exponential function. The default is 1.