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MySQL Router Release Notes  /  Changes in Release 8.0  /  Changes in MySQL Router 8.0.26 (2021-07-20, General Availability)

Changes in MySQL Router 8.0.26 (2021-07-20, General Availability)

Functionality Added or Changed

  • The TLSv1.0 and TLSv1.1 connection protocols now are deprecated and support for them is subject to removal in a future MySQL Router version.

Bugs Fixed

  • On Ubuntu with AppArmor enabled, AppArmor generated apparmor="DENIED" errors for paths /usr/share/mysql-8.0/charsets/Index.xml and /etc/ssl/openssl.cnf. The bunded AppArmor profile was updated to include the charset directory, and also changed openssl.conf to openssl.cnf. (Bug #32939333)

  • Reduced the CPU load consumed by HTTP Server processes by eliminating their excessive callbacks. (Bug #32715238)

  • Added a POD type and codec for client:Kill. (Bug #32672117)

  • When Router was bootstraped on a replica cluster of a ClusterSet using --conf-target-cluster=primary, it failed to recognize the cluster name in its log message regarding the cluster/clusterset it was bootstrapped against. (Bug #32614915)

  • A bootstrapped Router would not always follow a ClusterSet from its base cluster. (Bug #32591937)

  • The configuration file generated from bootstrapping Router to a ClusterSet member would became obsolete when the primary cluster changed. Now the ClusterSet name is used in the generated configuration file instead of the primary cluster name. (Bug #32544549)

  • Improved the ClusterSet logging mechanism. (Bug #32544512)

  • Recovering nodes that are not in the metadata (and only reported by Group Replication) are no longer included in the quorum calculation (do not increase the required pool). This fixes a cloning scenario: cloning causes the node to first appear in the Group Replication table, and adds it to metadata only after the clone operation is complete. (Bug #32522398)

  • Router unconditionally removed the pid_file on exit, even when the file already existed at startup and/or was write protected. Now it is only removed if created by this invocation of Router. (Bug #32247493)

  • Improved log messages for Router plugins, namely to debug plugin-related problems. (Bug #31584192)