Yarn application undefined created by dr.who

[#1]

Hi.

I have a question regarding yarn application.

As shown in the snapshot, hundreds of undefined yarn applications are created by dr.who every time. I never created that kind of jobs and I think they are created automatically by somehow but I don't know why.

Could you please advise that this happens in normal or not? If not, how can i fix it?

[#2 · Accepted solution]

@Sungwoo Park: This is not normal and there is a security breach in your environment.

Please refer this thread: https://community.hortonworks.com/questions/191898/hdp-261-virus-crytalminer-drwho.html

[#3]

@Sandeep Nemuri. Thank you very much. It helped a lot.