C37 improvements

This release

• Makes the C37 ingress daemon compatible with PSL microsynchrophasors
• Makes the C37 ingress daemon parallel safe
• Increases the default number of C37 ingress daemons
• Adds an environment variable to disable OBLITERATE via the API as a stopgap until the ACL system is merged

API frontend

This (dev series) 4.7.x release adds an alpha version of the API Frontend which allows you to connect to the BTrDB API from outside the kubernetes cluster. It also offers a REST HTTP version of the API that has a Swagger description for autogenerating language bindings

Migration

Add support for migrating from 4.4 single-pool installations to 4.6 tiered installations

Tiered storage

This release packages BTrDB v4.5 which includes tiered storage, so that core blocks can be put on SSD while data is put on HDD. This feature should allow you to keep the performance of SSDs for most queries, but put most of the data on HDD.

NOTE: the smartgrid.store documentation has not been updated for this version yet. The biggest thing to note is that your storage class must be called etcd-backup-gce-pd due to some restrictions in the newly-integrated etcd-operator. In exchange for that ugliness, etcd-operator will automatically resume from most data loss scenarios, unlike the old etcd pods that required manual interaction.

C37 yo

This release adds preliminary support for C37 ingress

The cavalry's here

Use BTrDB v4.4.9 which adds a Tracer as well as some stability fixes.

A cleaner future

This is a minor release that packages some upstream upgrades, as well as some codebase cleaning.

First release

This marks the first release of a version 4 smart grid store. Please consult https://docs.smartgrid.store for details on how to use mfgen.

NOTE this is the final release of 4.4.3