<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I have been working on introducing schema change management in Hawkular Metrics. The big challenge lies in how to support various upgrade scenarios. The work is being done in <a href="https://issues.jboss.org/browse/HWKMETRICS-361" class="">https://issues.jboss.org/browse/HWKMETRICS-361</a> and there is a lengthy comment that summarizes how we will handle upgrade scenarios. I wanted to share as this will hopefully be useful and applicable outside of metrics.<div class=""><br class=""></div><div class="">- John</div></body></html>