8000 sql: gate total number of descriptors in a cluster · Issue #148221 · cockroachdb/cockroach · GitHub
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8000
sql: gate total number of descriptors in a cluster #148221
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@rimadeodhar

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@rimadeodhar

There are several systems that are impacted when the number of descriptors exceeds a certain threshold, including:

  • Backups
  • Statistics Collection
  • Schema Changes

Our documentation currently calls out a soft limit of 10,000 descriptors. To proactively manage this, we should introduce safeguards within the system to prevent the creation of new objects once this threshold is reached.

These safeguards should be gated behind a feature flag to allow for a controlled and safe rollout.

Without such protections, database administrators have no clear indication that they are operating the database beyond supported limits, which can lead to degraded performance or unexpected behavior.

Jira issue: CRDB-51486

Epic CRDB-48806

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    C-enhancementSolution expected to add code/behavior + preserve backward-compat (pg compat issues are exception)O-postmortemOriginated from a Postmortem action item.T-sql-foundationsSQL Foundations Team (formerly SQL Schema + SQL Sessions)X-duplicateClosed as a duplicate of another issue.

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