Hello, In the second half of January 2017, the version of Node running in WMF production has been updated from v4 to v6~[1]. Parsoid, RESTBase, AQS and the services running on the SCB cluster (Graphoid, Mathoid, Mobile Content Service, to mention just a few) are now running on Node v6. The only outstanding Node service which is still running Node v4 is Maps, but we are making good progress on moving it to Node v6 and expect it to happen soon~[2].
In the case of services running in WMF production, we have seen a slight increase in performance as well as a substantial decrease in memory consumption across the board, which improves the stability of our services. You can read more about the experience of the update and its results in the post published on Wikimedia's blog~[3]. Big thanks to all of the people that helped to make it happen! Happy Friday, Marko && the Services Team [1] https://phabricator.wikimedia.org/T149331 [2] https://phabricator.wikimedia.org/T150354 [3] https://blog.wikimedia.org/2017/02/17/node-6-wikimedia/ -- Marko Obrovac, PhD Senior Services Engineer Wikimedia Foundation
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