I have started to read book SCJP: Sun Certified Programmer for Java Platform Study Guide: SE6 (Exam CX-310-065). This reading is great for huge spectrum of programmers, even senior java one has to find places where he can gain new knowledge. I had to continue reading SCJP book despite I'm currently working on project having .NET behind. It helped me to understand stuff "behind the wall", what compiler allows, how works inheritance. The book covers all materials likely using within technical interviews :-) You couldn't be caught so easy :-)
ETCD is distributed key value store used as a core component in CoreOS . I've already send a post earlier this week. Here is a page describing how to use ETCD basic commands = ETCD API. Code snippets placed in a page mostly use put , but ETCD allows to use post as well. Most of us understand differences between those two commands in a notion of a REST(ful) service, but how does it work in key value store? POST Example over many words. curl -v http://127.0.0.1:2379/v2/keys/test -XPOST -D value="some value" curl -v http://127.0.0.1:2379/v2/keys/test -XPOST -D value="some value" Two same command result into following content: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 { "action" : "get" , "node" : { "key" : "/test" , "dir" : true , "nodes" : [ { "key" : "/test/194" , "value" : &
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