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Who is the one?

22.01.2018 1 min read
“Who is the one?” is a talk that I presented at the BEDCon, GOTO Nights Berlin, Hypoport Leadership Days and Manage Agile in 2017 and 2018. The scope of the talk was a glance into the introduction of self-organization at my former employer, Europace AG. In 2016, we started the transition towards self-organization – Holacracy and Sociocracy in particular. Abstract Who is the one? For more than 8 years, the teams at Europace worked with agile methodologies like Scrum or Kanban. Continue reading

MongoDB - resizing the oplog of replica sets

03.07.2016 3 min read
MongoDB replica sets are used to provide redundancy for MongoDB. For the data replication, MongoDB uses the so-called oplog. This oplog is a separate collection within the local database. It is capped, so the collection cannot get bigger than the configured size. This limits the amount of entries that can be stored within the collection. If the collection is full, the oldest entries will be removed. When an application fills the oplog within 35 minutes, the replica set will get out of sync after 34 minutes and 59 seconds in case of a disaster event. Continue reading

MongoDB - Can we have a backup please?

28.06.2016 1 min read
This talk is about the experiences made by Jörg Müller and Stefan Rudnitzki when they improved their MongoDB backup strategy. The talk presents their current production backup strategy, their decisions while building it, and outlines the approach’s pros and cons.
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