Hi everybody, We have finally migrated our CDH cluster to Bigtop 1.5, so I can say that we are now happy Bigtop users :)
The upgrade of the production cluster (60 worker nodes, ~50M files on HDFS) was harder than I expected, since we bumped into a strange performance issue that slowed down the HDFS upgrade. I wrote a summary in https://phabricator.wikimedia.org/T273711#6818136 for whoever is interested, it is surely something to highlight in the CDH->Bigtop guide. Speaking of which, the last thing that we did was starting https://docs.google.com/document/d/1fI1mvbR1mFLV6ohU5cIEnU5hFvEE7EWnKYWOkF55jtE/edit some time ago, so I am wondering if we could find a more permanent location. Would it make sense to start a wiki page somewhere? Or even a .md file in the github repo, as you prefer (the latter would be more convenient for reviewers etc..). Anyway, thanks a lot to all for the support! It was a looong project but we eventually did it! Luca
