ipfailover - control preempt strategy #4674
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This allows the admin to control the VRRP preempt strategy. The default strategy, preempt_delay , switches to the higher priority master after a (default 300) delay. The second strategy, nopreempt, suppresses switching when a higher priority host becomes available. The 'oc adm ipfailover --preempt-strategy' option can set the desired strategy. --preempt-strategy sets the OPENSHIFT_HA_PREEMPTION environment variable. bug 1465987 https://bugzilla.redhat.com/show_bug.cgi?id=1465987 origin PR 14947 openshift/origin#14947
pecameron
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This allows the admin to control the VRRP preempt strategy. The default strategy, preempt_delay <sec>, switches to the higher priority master after a <sec> (default 300) delay. The second strategy, nopreempt, suppresses switchin when a higher priority host becomes available. The 'oc adm ipfailover --preempt-strategy' option can set the desired strategy. --preempt-strategy sets the OPENSHIFT_HA_PREEMPTION environment variable. bug 1465987 https://bugzilla.redhat.com/show_bug.cgi?id=1465987 openshift docs PR 4674 openshift/openshift-docs#4674
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This doc is applicable for 3.6 only, correct? |
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@eparis It is a new feature in 3.6, origin PR 14947 |
pecameron
added a commit
to pecameron/origin
that referenced
this pull request
Jun 30, 2017
This allows the admin to control the VRRP preempt strategy. The default strategy, preempt_delay <sec>, switches to the higher priority master after a <sec> (default 300) delay. The second strategy, nopreempt, suppresses switchin when a higher priority host becomes available. The 'oc adm ipfailover --preempt-strategy' option can set the desired strategy. --preempt-strategy sets the OPENSHIFT_HA_PREEMPTION environment variable. bug 1465987 https://bugzilla.redhat.com/show_bug.cgi?id=1465987 openshift docs PR 4674 openshift/openshift-docs#4674
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Thanks @pecameron . Is this PR from a trello card? Or is this just from the mentioned BZ? |
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@bfallonf, back from PTO, its a BZ (not trello) |
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Sure thing. Thanks @pecameron . I'll merge this and make a followup PR. Is this for 3.6? The BZ is for version 3.4, but is targeted for 3.6. |
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The customer reported they were using 3.4. We only added the new feature in 3.6. this is a 3.6 doc only. |
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Great! Thanks @eparis |
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Openshift 3.6
This allows the admin to control the VRRP preempt strategy.
The default strategy, preempt_delay , switches to the higher
priority master after a (default 300) delay. The second
strategy, nopreempt, suppresses switching when a higher priority host
becomes available.
The 'oc adm ipfailover --preempt-strategy' option can set the desired
strategy. --preempt-strategy sets the OPENSHIFT_HA_PREEMPTION
environment variable.
bug 1465987
https://bugzilla.redhat.com/show_bug.cgi?id=1465987
origin PR 14947
openshift/origin#14947