A "Node is not runnning!" error on Riak

Today I got an "Node is not runnning!" error when test with "riak-admin status" after starting riak 0.14.2 server is about the ~/.erlang.cookie. Yet when I "ps xua |grep riak", all the riak processes were running well.

I tried "riak ping", and it lefe me following error:
Error when reading /home/username/.erlang.cookie: eaccesescript: exception error: no match of right hand side value

I checked .erlang.cookie and found it with owner root. So I removed /home/username/.erlang.cookie, and start riak without root permission(chown should also work). Now, everything works fine.

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A simple implementation of DTW(Dynamic Time Warping) in C#/python

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Change the default user when start a docker container

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Notes on Sequential Pattern Mining (2) -- Partial Order Pattern Mining and Contrast Mining

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