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https://issues.apache.org/jira/browse/SOLR-9883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15808201#comment-15808201
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ASF subversion and git services commented on SOLR-9883:
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Commit d817fd43eccd67a5d73c3bbc49561de65d3fc9cb in lucene-solr's branch
refs/heads/master from [~steve_rowe]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=d817fd4 ]
SOLR-9883: In example schemaless configs' default update chain, move the DUP to
after the AddSchemaFields URP (which is now tagged as RunAlways), to avoid
invalid buffered tlog entry replays.
> example solr config files can lead to invalid tlog replays when using
> add-unknown-fields-to-schema updat chain
> --------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-9883
> URL: https://issues.apache.org/jira/browse/SOLR-9883
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 6.3, trunk
> Reporter: Erick Erickson
> Assignee: Steve Rowe
> Attachments: SOLR-9883.patch, SOLR-9883.patch, SOLR-9883.patch
>
>
> The current basic_configs and data_driven_schema_configs try to create
> unknown fields. The problem is that the date processing
> "ParseDateFieldUpdateProcessorFactory" is not invoked if the doc is replayed
> from the tlog. Whether there are other places this is a problem I don't know,
> this is a concrete example that fails in the field.
> So say I have a pattern for dates that omits the trialing 'Z', as:
> yyyy-MM-dd'T'HH:mm:ss.SSS
> This work fine when the doc is initially indexed. Now say the doc must be
> replayed from the tlog. The doc errors out with "unknown date format" since
> (apparently) this doesn't go through the same update chain, perhaps due to
> the sample configs defining ParseDateFieldUpdateProcessorFactory after
> DistributedUpdateProcessorFactory?
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