Altinity Kubernetes Operator Release Notes

Here are the most recent release notes, organized by major release and release date:

Altinity Kubernetes Operator 0.21.2 Release Notes

Released: 2023-06-29


Added

• Added support of clickhouse-log via podTemplates by @dmmarkov in https://github.com/Altinity/clickhouse-operator/pull/1012
• Added SQL UDFs replication when adding shards/replicas. Closes https://github.com/Altinity/clickhouse-operator/issues/1174

Changed

• Operator and metrics-exporter now automatically select ‘http’ or ‘https’ for connecting to cluster based on cluster configuration
• Changed statefulSet update behaviour to abort the update on failure. That protects the rest of the cluster from a breaking changes
• Removed unneeded operations on persistent volumes

Fixed

• fix crash when reconcilePVC() failed by @jewelzqiu in https://github.com/Altinity/clickhouse-operator/pull/1168
• fix reconcile threads number by @jewelzqiu in https://github.com/Altinity/clickhouse-operator/pull/1170

Other

• Run tests in parallel by @antip00 in https://github.com/Altinity/clickhouse-operator/pull/1171
• fix build script to adapt to macos m1. by @xiedeyantu in https://github.com/Altinity/clickhouse-operator/pull/1169

Full Changelog: https://github.com/Altinity/clickhouse-operator/compare/release-0.21.1...release-0.21.2

Download at: https://github.com/Altinity/clickhouse-operator/releases/tag/release-0.21.2

 

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Altinity Kubernetes Operator 0.21.1 Release Notes

Released: 2023-05-29


Added

• Added configurable shard-level concurrent reconciliation by @zcross in https://github.com/Altinity/clickhouse-operator/pull/1124. It is controlled by the following operator configuration settings:

reconcile:
  runtime:
    # Max number of concurrent CHI reconciles in progress
    reconcileCHIsThreadsNumber: 10
    # Max number of concurrent shard reconciles in progress
    reconcileShardsThreadsNumber: 1
    # The maximum percentage of cluster shards that may be reconciled in parallel
    reconcileShardsMaxConcurrencyPercent: 50

• Added default configuration for ClickHouse system.trace_log table with 30 days TTL

Changed

• ZooKeeper manifests were rewritten to store configuration separately

Fixed

• Fixed a bug in metrics-exporter that might stop working on ClickHouse nodes with certain types of system.errors. Closes #1161
• Fixed a bug with ClickHouse major version detection for Altinity.Stable builds

Full Changelog: https://github.com/Altinity/clickhouse-operator/compare/release-0.21.0...release-0.21.1

Download at: https://github.com/Altinity/clickhouse-operator/releases/tag/release-0.21.1

 

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Altinity Kubernetes Operator 0.21.0 Release Notes

Released: 2023-05-20


What’s Changed

• Changed the way Operator applies ClickHouse settings. In the previous version, every change in settings required a restart via re-creating a StatefulSet. In this version it does not re-create StatefulSet anymore, but maintains a logic that decide if ClickHouse needs to be restarted in order to pickup a change or not. In case of restart it is performed using scaling stateful set down and up. The restart logic is controlled by configurationRestartPolicy configuration setting. Here is the default configuration:

    rules:
      - version: "*"
        rules:
          - settings/*: "yes"
          - settings/dictionaries_config: "no"
          - settings/logger: "no"
          - settings/macros/*: "no"
          - settings/max_server_memory_*: "no"
          - settings/max_*_to_drop: "no"
          - settings/max_concurrent_queries: "no"
          - settings/models_config: "no"
          - settings/user_defined_executable_functions_config: "no"

          - zookeeper/*: "yes"

          - files/config.d/*.xml: "yes"
          - files/config.d/*dict*.xml: "no"

          - profiles/default/background_*_pool_size: "yes"
          - profiles/default/max_*_for_server: "yes"
      - version: "21.*"
        rules:
          - settings/logger: "yes"

• Improved reliability of schema creation for new shards/replicas
• Added “secure” option for Zookeeper connections by @Tvion in https://github.com/Altinity/clickhouse-operator/pull/1114
• Added “insecure” flag that closes insecure TCP/HTTP ClickHouse ports. See security_hardening.md for more detail
• Added an option to disable metrics exporter by @roimor in https://github.com/Altinity/clickhouse-operator/pull/1131
• Added system.errors scrapping into metrics-exporter
• Refactor Registry internals to make concurrent access safe by @zcross in https://github.com/Altinity/clickhouse-operator/pull/1115

Fixed

• Fixed a bug that might result in PDB being deleted
• Fixed propagation of podTemplate environment variables from ClickHouseInstallationTemplate to ClickHouseInstallation
• Fixed propagation of startup probe from ClickHouseInstallationTemplate to ClickHouseInstallation

Non-operator changes

• Changed Grafana deployment to allow persisting custom dashboards
• Changed ZooKeeper version to 3.8.1

New Contributors

• @roimor made their first contribution in https://github.com/Altinity/clickhouse-operator/pull/1131
• @Tvion made their first contribution in https://github.com/Altinity/clickhouse-operator/pull/1114
• @zcross made their first contribution in https://github.com/Altinity/clickhouse-operator/pull/1115

Full Changelog: https://github.com/Altinity/clickhouse-operator/compare/release-0.20.3...release-0.21.0

Download at: https://github.com/Altinity/clickhouse-operator/releases/tag/release-0.21.0

 

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