Boardcast variable causes Spark driver OOM
Monitor broadcast variable’s size.
Fail to distinguish alarm emails due to similar subject
Make alarm email subject different at length.
This room was filled with echoes of what I had said 这间房间里到处都是我的回声
rm -r ~/ deletes public key
It’s a very risky command.
Redis OOM due to big keys
Frequently get big key -> hit network limit -> message backlog in buffer -> OOM
MySQL connection pool size too small causes deadlock
A small-sized connection pool (such as 1, 2) may cause deadlock.
Why signal file is a bad idea
Replace it with direct API call
What strange and bizarre, yet irrefutable theories are you inventing in the room 你又在房间里发明什么稀奇古怪，但又令人无可反驳的理论
I like the way you resurrected them 我喜欢你复活他们的方式
How should I tell potatoes that they shouldn’t sprout now? 应该如何告诉土豆它们不应该现在发芽呢