Bump major version for feature migration system indices #117243
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elasticsearchmachine added needs:triage 
| Created this instead of the original PR since this needs to be created against main and backported. |
jfreden added :Core/Infra/Core 
| Pinging @elastic/es-core-infra (Team:Core/Infra) |
jfreden added the auto-backport | Hi @jfreden, I've created a changelog YAML for you. |
gwbrown approved these changes Nov 21, 2024
💔 Backport failed
You can use sqren/backport to manually backport by running |
💚 All backports created successfully
Questions ?Please refer to the Backport tool documentation |
jfreden added a commit to jfreden/elasticsearch that referenced this pull request Nov 22, 2024
* Bump major version for feature upgrade system indices (cherry picked from commit 546e8e9) # Conflicts: # server/src/main/java/org/elasticsearch/action/admin/cluster/migration/TransportGetFeatureUpgradeStatusAction.java
smalyshev pushed a commit to smalyshev/elasticsearch that referenced this pull request Nov 22, 2024
* Bump major version for feature upgrade system indices
alexey-ivanov-es pushed a commit to alexey-ivanov-es/elasticsearch that referenced this pull request Nov 28, 2024
* Bump major version for feature upgrade system indices
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This PR is in preparation for the ES 9 release. Lucene has BWC with indices created on one version prior to the current version (ES 9.0 is Lucene 10, so can support Lucene 9). To ensure that a system index created on an ES 7 (Lucene 8) can actually run on ES 9 (Lucene 10), the system indices need to be reindexed.
To reindex a system index for ES 9, the cluster need to be ugraded to
8.latestand then run the Kibana Upgrade Assistant or use the Feature MIgration APIs directly. The feature migration APIs enable you to see what features require changes, initiate the automatic migration process, and check migration status.For system indices to show up as "needs upgrade" in the
GET /_migration/system_featuresthe minimum index and stack version need to be bumped from 7 to 8. The suffix added to migrated indices also need to use version 9.