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docs: mention acid-compliance for meta store (#16014)
* docs: add mermaid diagram support * fix crash when parsing data in data loader that can not be parsed (#15983) * update jetty to address CVE (#16000) * Concurrent replace should work with supervisors using concurrent locks (#15995) * Concurrent replace should work with supervisors using concurrent locks * Ignore supervisors with useConcurrentLocks set to false * Apply feedback * Add pre-check for heavy debug logs (#15706) Co-authored-by: Kashif Faraz <kashif.faraz@gmail.com> Co-authored-by: Benedict Jin <asdf2014@apache.org> * Remove helm paths from CodeQL config (#16006) * docs: mention acid-compliance for metadb --------- Co-authored-by: Vadim Ogievetsky <vadim@ogievetsky.com> Co-authored-by: Jan Werner <105367074+janjwerner-confluent@users.noreply.github.com> Co-authored-by: AmatyaAvadhanula <amatya.avadhanula@imply.io> Co-authored-by: Sensor <fectrain@outlook.com> Co-authored-by: Kashif Faraz <kashif.faraz@gmail.com> Co-authored-by: Benedict Jin <asdf2014@apache.org>
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@ -44,7 +44,7 @@ See [Metadata storage configuration](../configuration/index.md#metadata-storage)
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## Available metadata stores
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## Available metadata stores
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Druid supports Derby, MySQL, and PostgreSQL for storing metadata.
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Druid supports Derby, MySQL, and PostgreSQL for storing metadata. Note that your metadata store must be ACID-compliant. If it isn't ACID-compliant, you can encounter issues, such as tasks failing sporadically.
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To avoid issues with upgrades that require schema changes to a large metadata table, consider a metadata store version that supports instant ADD COLUMN semantics.
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To avoid issues with upgrades that require schema changes to a large metadata table, consider a metadata store version that supports instant ADD COLUMN semantics.
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See the database-specific docs for guidance on versions.
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See the database-specific docs for guidance on versions.
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