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For debugging it’s often useful to see all queries and since you usually don’t want to save all this data, it’s nice to be able to You can log to file but also to a table in the mysql database. While you can turn this on and off by updating the my.cnf file, you can also do it via mysql commands: One nice thing about logging to a table is that you can search for specific things, see examples below. You probably want to clear the log periodically and can do so with: network (previously added nodes, both manager and worker, worked fine). It turned out that this newest node used a new installer that defaulted the storage driver to overlay2 — where the previously installed nodes were using aufs. All nodes are running on Ubuntu apt-get install linux-image-extra-`uname -r` (or other updates). If you do have aufs support and Docker defaults to overlay2, you can spec and restart Docker (via systemctl restart docker.service or similar). NOTE that any images or containers created with the old storage driver Sometimes the terminal size reverts to the 80×24 default size, particularly when using Docker-in-Docker. To fix, pas* the terminal docker run --rm -it -e COLUMNS=$COLUMNS -e LINES=$LINES -e TERM=$TERM -it ubuntu:16.04 > Rich Hickey emphasizes simplicity’s virtues over easiness’, > showing that while many choose easiness they may end up with > complexity, and the better way is to choose easiness along the > simplicity path. opposite of “complex” which means “being intertwined”, “being tied together”. Simple != easy. He even predicts (to some extent) microservice architecture by declaring a set of separate strings hanging down independently can If you want to swap values in one query in MySql without a temporary table, you can use variables to hold values that otherwise would be > This extension can communicate with any AMQP spec 0-9-1 compatible > server, such as RabbitMQ, OpenAMQP and Qpid, giving you the ability