Fix kubemark hollow-npd.

[Random-Liu]

In NPD v0.3.0-alpha.1, node problem detector will error out if the specified log file doesn't exist.

Previously, kubemark uses a non-exist log file /log/faillog to make npd idle, as hollow-npd. However, it won't work with new npd.

This PR changed the log path to /dev/null, so that npd won't be able to read anything, and /dev/null will definitely exist in the container.

I started kubemark cluster with this change myself, and it works properly now.

@foxish @shyamjvs @wojtek-t

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

The following people have approved this PR: Random-Liu

Needs approval from an approver in each of these OWNERS Files:

• test/kubemark/OWNERS

We suggest the following people:
cc @wojtek-t
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[k8s-reviewable]

This change is 

[foxish]

I'm not familiar with this part of the code. Can one of @gmarek, @shyamjvs @wojtek-t take a look?

[foxish]

@k8s-bot kops aws e2e test this

[foxish]

I don't think we can get owner approvals tonight. @Random-Liu explained the change to me, and it seems reasonable and appears to fix the problem. I'll merge on green to unblock the submit queue.

[Random-Liu]

@foxish Thanks for taking care of this!

[krzyzacy]

Wow thanks! I was also staring at it and has no clue at all 😝

[foxish]

I hope this fixes it! All credit to Lantao for figuring this out late at night on a weekend. Cheers. Thanks!

…

On Feb 18, 2017 10:41 PM, "Sen Lu" ***@***.***> wrote: Wow thanks! I was also staring at it and has no clue at all 😝 — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#41703 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AA3U572AAU5RMoFvwOzj3NL0pToIVQSEks5rd-QwgaJpZM4MFXFB> .