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https://issues.apache.org/jira/browse/IGNITE-12504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17026701#comment-17026701
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Anton Kalashnikov commented on IGNITE-12504:
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[~ilyak] non-persistent clusters weren't supported baseline before changes - it
was just zero-delay rebalance on each join/fail event. But after the
implementation of auto-adjust feature non-persistent clusters started to
support baseline same as a persistent cluster. So for keeping the old behavior
of zero-delay rebalance auto-adjust should be enabled by default and timeout
should be equal to 0.
In my opinion, the description of this ticket like ' it breaks existing code'
should be relative only to persistent cluster because changing of baseline for
not-persistent cluster before auto-adjust feature didn't make any sense(so code
with baseline change for non-persistent cluster should not exist). if it so
I'll close this ticket as duplicate. If you still think that enabled
auto-adjust for the non-persistent cluster can lead to the problems, we'll try
to figure it out.
> Auto-adjust breaks existing code, should be disabled by default
> ---------------------------------------------------------------
>
> Key: IGNITE-12504
> URL: https://issues.apache.org/jira/browse/IGNITE-12504
> Project: Ignite
> Issue Type: Bug
> Components: cache, persistence
> Affects Versions: 2.8
> Reporter: Ilya Kasnacheev
> Assignee: Anton Kalashnikov
> Priority: Blocker
> Fix For: 2.8
>
>
> We have automatic baseline adjustment now. However, it is 'on' by default,
> which means it breaks existing code. I see new exceptions when starting an
> existing project after bumping Ignite dependency version:
> {code}
> Caused by:
> org.apache.ignite.internal.processors.cluster.BaselineAdjustForbiddenException:
> Baseline auto-adjust is enabled, please turn-off it before try to adjust
> baseline manually
> {code}
> (Please see reproducer from attached UL discussion)
> I think we should disable auto-adjust by default, let people enable it when
> they see it fit.
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