What's New in This Guide

This section introduces the documentation updates for release 26.1.200.

Release 26.1.202 - G55059-03, September 2026

Enhanced the Rolling Back cnDBTier section with password-encryption compatibility handling, updated NDB initial-restart requirements, improved pre-rollback cleanup, and parallel-restart guidance.

Release 26.1.202 - G55059-02, August 2026

General Updates
  • Updated the release number to "26.1.202" in the entire document.

Release 26.1.201 - G55059-01, July 2026

General Updates
  • Updated the release number to "26.1.201" in the entire document.
  • Updated the Oracle error correction policy information in the Oracle Error Correction Policy section.
Installation Updates
  • The following global configuration parameters are added in the Global Parameters section:
    • /global/geoReplicationRecovery/autoGRR/enabled
    • /global/geoReplicationRecovery/preferredBackupSite
    • /global/geoReplicationRecovery/backupSiteSelectionPolicy
    • /global/geoReplicationRecovery/ndbRestoreOptions/restoreData/useHint
    • /global/geoReplicationRecovery/ndbRestoreOptions/restoreData/readSize
  • The following API configuration parameters are added in the Global Parameters section:
    • /api/externalService/sqlgeorepsvclabels[*]/loadBalancerClass
    • /api/ndbapp/externalconnectivityService/loadBalancerClass
  • Updated the default value for the following parameter:
    • /global/ndb/restoreparallelism from 1024 to 8192
Configuration Update
  • Added the section Using dbttriage to provide detailed instructions for performing deeper health checks and triage of cnDBTier sites, including validating pod readiness, internal and external service connectivity, and georeplication health and state across sites.

  • Added the Using dbtfastrecover section to provide instructions for restoring interrupted cnDBTier bi-directional replication when db_replication_svc cannot recover the replication channel automatically. The section describes prerequisites, recovery modes, workflow, command syntax, validation steps, failure handling, and limitations.