Software Engineering Intern Lessons @intern-lessons-blog - Tumblr Blog

Intern Lesson #30

Use the correct bucket name

#y u no work

Intern Lesson #29

Your VM is out of space? Logs are probably the culprit

#growth hacking

Intern Lesson #28

Corollary to #27: add logbook in addition to log4j and log4j2 for even more mindfuckery

#all the logz

Intern Lesson #27

Having log4j and log4j2 in the same project is complete mindfuck

#dazed and confused

Intern Lesson #26

Don’t change API endpoints without telling others

#y u no work?

Intern Lesson #25

Corollary to #24: if things with kafka still don’t work, kafka_2.11 might be hiding in your maven dependency graph

#thats so maven #dependency hell

Intern Lesson #24

Having this

<dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka_2.11</artifactId> <version>0.8.2.2</version> </dependency>

will break your Kafka consumer (use kafka_2.10 instead)

#y u no work?

Intern Lesson #23

Don’t do “storm kill” without specifying a topology name on terminal...it’ll stop *all* your topologies

#crash and burn

Intern Lesson #22

You can’t import a class from the default package

#rtfm #java

Intern Lesson #21

In Swagger spec: it’s “integer” not “int”

#crash and burn #syntax error

Intern Lesson #20

./script.sh won’t work if script.sh is not an executable

#no shit sherlock

Intern Lesson #19

Always stereotype your code (when using dependency injection)

#not racist

Intern Lesson #18

You forgot to check for null, didn’t you

#crash and burn #nullpointerexception

Intern Lesson #17

When launching a storm topology, use the right launcher host

#no shit sherlock

Intern Lesson #16

When publishing a snapshot artifact, be sure to add “-SNAPSHOT”

#no shit sherlock

Intern Lesson #15

Use the correct path when referencing protobuf compiler in maven

#thats so maven

Intern Lesson #14

Corollary to #13: Do you see the word “butt” a lot in Chrome? You probably left your computer unlocked again

#hacked

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