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@pcf-core-services-writer pcf-core-services-writer released this 16 Sep 23:01
v1.0.1
c60440d

Important pxc-release v1.0 is a major database upgrade from Percona XtraDB Cluster 5.7 to Percona XtraDB Cluster 8.0

Version Bumps

  • Bumped Percona XtraDB Cluster to 8.0.29-21

  • Bumped Percona XtraBackup to 8.0.29-22

New Features

  • The database server default character set and collation have been changed to
    the Percona XtraDB Cluster 8.0 default of utf8mb4 and utf8mb4_0900_ai_ci
    respectively.

    The new defaults will only affect newly created databases created after
    pxc-release v1.0.1. For more information about the default database character
    set and collation see this MySQL documentation:

    https://dev.mysql.com/doc/refman/8.0/en/charset-server.html

    The database server's default character set and collation may be configured
    explicitly via the pxc-mysql job's "engine_config.character_set_server" and
    "engine_config.collation_server" properties, respectively.

  • galera-agent and cluster-health logger users no longer need to be explicitly
    specified in the pxc-mysql job's seeded_users property.

    pxc-mysql will automatically generate these users when the galera-agent or
    cluster-health-logger jobs are deployed. This removes the breaking change
    from the previous release.

  • Percona XtraDB Cluster 5.7 packages are now included in deployments to aid in
    upgrades. In the previous release, only the Percona XtraDB Cluster 8.0
    package was included on pxc/1.0 VMs.

  • Percona XtraDB Cluster 8.0 packages have been renamed from
    "/var/vcap/packages/pxc" to "/var/vcap/packages/percona-xtradb-cluster-8.0"
    in an effort to distinguish from the percona-xtradb-cluster-5.7 package

  • In the previous release, upgrades from pxc-release prior to 1.0 running
    Percona XtraDB Cluster 5.7 where the v5.7 instance was not cleanly shutdown
    or had crashed would fail.

    As of pxc-release v1.0.1, the pxc-mysql job will run crash recovery with
    Percona XtraDB Cluster 5.7 prior to the upgrade to Percona XtraDB Cluster 8.0

  • The "migrate-to-pxc" utility that previously assisted with migrations from
    cf-mysql-release are no longer included in this version of pxc-release

Breaking Changes

  • If you previously relied on /var/vcap/packages/pxc in this release, the
    latest Percona XtraDB Cluster binaries are now located under
    /var/vcap/packages/percona-xtradb-cluster-8.0/bin

    Note that pxc-release always symlinks /usr/local/bin/mysql to the latest
    Percona XtraDB Cluster mysql cli for troubleshooting on the local VM.

  • Since v1.0, ubuntu-xenial is no longer supported! Only ubuntu-jammy or ubuntu-bionic stemcells can be used to deploy pxc-release v1.0.1

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