Kibana plugin install stalls at "Optimizing and caching browser bundles..."

[bradvido]

Kibana version:
6.2.4
Elasticsearch version:
6.2.4
Server OS version:
Windows Server 2016

Original install method (e.g. download page, yum, from source, etc.):
zip download from elastic.co

Describe the bug:
I executed the install command here about 16 hours ago, and it still hasn't gotten past this step. As you can see node is using ~8 GB of memory which seems excessive.

Note that per recommendations in other issues, I did set the --max-old-space-size to 8000

Steps to reproduce:

1. Install ES/Kibana on Server 2016
2. Execute command seen in screenshot (happens for any plugin install, not just the one pictured)
3. Wait

Expected behavior:
Plugin install should finish quickly

[tylersmalley]

Related: https://discuss.elastic.co/t/install-problem-kibana-plugin-appears-to-hang/134355/3

[tylersmalley]

Related: #19633

[bradvido]

Still an issue for me in 6.3.0

[akhilvatts]

+1 in 6.4.0

[derentis]

+1 in 6.3.1 on Ubuntu 18.0.4.1 LTS

just sits there with processes open but never actually goes anywhere. That's been running for 24hrs now and it isn't doing anything.

[zukeru]

+1 here I have the same issue with sentinl plugin. It will get caught in the optimizing part. If I kill it and then run it again it says its installed and configured. This doesn't happen with searchguard however.

[Mrfly-ca]

I am having the same issue running the install for wazuhapp-3.6.1_6.4.2.zip

Everything else is the same. (Server, OS, mem etc)

[n4ll3ec]

+1 , same issue occured on ELK Stack6.4.1,Ubuntu16.04 LTS

[akhilvatts]

+1 ELK 6.5.0