Update center is missing a plugin but it is listed in default.json

[Martin d'Anjou]

I have an odd situation where I want to install the Summary Display Plugin, bit it is not listed as being available on the web page of the update center. However, I can see this plugin in the default.json file on the server! How do I debug and fix this? I rebooted the server on the weekend, it did not change anything.

A difference I noticed is that the latest default.json core 1.593 (curl -L http://updates.jenkins-ci.org/update-center.json >default.json) has fewer spaces in it than the one with the 1.565.3 core.

I use Jenkins LTS 1.565.3

Thanks,
Martin

[Daniel Beck]

Is it already installed, maybe failing to load during startup?

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[bl0ck3r]

Is there a logger that I can turn on which would give me more information on this problem? The log reveals nothing relevant.

[Ralph Bolton]

The download from update.jenkins-ci.org has some non-JSON in the first and last lines (why!?). Perhaps Jenkins is ignoring your new file because of this...? You can strip them out:

curl -L http://updates.jenkins-ci.org/update-center.json | sed '1d;$d' > default.json

(paraphrased from here: https://gist.github.com/jedi4ever/898114)