[DOCS] Adds note to troubleshooting migration topic (#46815) (#46827)

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gchaps 2019-09-27 10:57:48 -07:00 committed by GitHub
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@ -46,7 +46,10 @@ The first instance that triggers saved object migrations will run the entire pro
[[upgrade-migrations-rolling-back]]
==== Rolling back to a previous version of {kib}
When rolling {kib} back to a previous version, point the `.kibana` alias to the appropriate {kib} index. When you have the previous version running again, delete the more recent `.kibana_N` index or indices so that future upgrades are based on the current {kib} index.
When rolling {kib} back to a previous version, point the `.kibana` alias to
the appropriate {kib} index. When you have the previous version running again,
delete the more recent `.kibana_N` index or indices so that future upgrades are
based on the current {kib} index. You must restart {kib} to re-trigger the migration.
WARNING: Rolling back to a previous {kib} version can result in saved object data loss if you had successfully upgraded and made changes to saved objects before rolling back.