Details
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Sub-task
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Status: Resolved
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Major
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Resolution: Fixed
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main (10.0), 9.5
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None
Description
Solr isn't infinitely scalable when it comes to the number of fields in each core/collection. Most deployments start to experience problems any time a core has upwards of a few hundred fields. Usually this doesn't exhibit itself right away. instead waiting until segment-merge or some other time to rear its head.
Sometimes users hit this through intentional schema design. Often however, it happens "accidentally" due to (mis-)use of Solr's "dynamic fields" feature.
We should add a configurable soft-limit, of the type described in SOLR-17191, to prevent users from unknowingly getting into this state.
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