Slave Squatter Plugin

Plugin Information

Plugin ID slave-squatter
Latest Release 1.3-h-1
Latest Release Date Sep 6, 2012
Plugin Central Plugin Central 3.2
Sources Github
Support Eclipse Hudson Forum
Issue Tracking Eclipse Bugzilla
Hudson Core (latest) 3.3.3

This plugin enables administrators to reserve executors to be used outside Hudson.

It is useful for making Hudson aware of activities outside Hudson — such as when you are using people's workstations as slaves (which need to be available for interactive use during day time) or when the system goes through a periodical backup, which reduces the I/O capability of the system.

By default, the reservation is specified in a cron-like syntax (but as you see below, this is an extension point.)

More specifically, you specify (1) an integer to decide the number of executors reserved (or special token "*" to indicate all the executors of the node), (2) a cron syntax to decide when a reservation starts, (3) number of minutes that decide the duration. So for example, to reserve 2 executors between 8am-5pm weekdays, you'd write the following:

# 5pm - 8am = 9hours = 540mins
2 : 0 8 * * 1-5 : 540
# or alternatively devide it up to 9 times 1hr reservation
2 : 0 8-16 * * 1-5 : 60

Extension Points

This plugin provides an extension point that allows other plugins to control the reservation programmatically (or by exposing it in a different UI.) For example, one might consider controlling reservations via existing calendar system such as Microsoft Exchange, or provide a simpler UI for common cases.

Changelog

Version 1.2 (upcoming)

  • Support '*' as the executor size to indicate "all the executors of the computer"

Version 1.1 (Sep 29 2010)

  • Implemented an extension point so that upcoming reservations are considered for making scheduling decisions

Version 1.0 (Sep 19 2010)

  • Initial version

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