# Kibana plugin stuck at optimizing and caching browser bundles

**URL:** <https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819>\
**Category:** Kibana\
**Created:** [June 17, 2017, 9:02pm UTC](https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819 "2017-06-17T21:02:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jamesl](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@jamesl](https://discuss.elastic.co/u/jamesl)\
**Post date:** [June 17, 2017, 9:02pm UTC](https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819/1 "2017-06-17T21:02:41Z")

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Hi, Just performed an upgrade my my stack from 5.4.0 --\> 5.4.1. All went well except when I went to install the new upgraded version of kibana x-pack it has hung at optimizing and caching browser bundles. I have tried removing kibana completely (apt-get purge kibana) and re-install again and then re-run kibana x-pack plugin but still hung at this stage.

I don't see anything interesting (actually nothing) in /var/log/syslog...

any pointers?

"optimizing and caching browser bundles"

Thanks.

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**Author:** ![jamesl](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@jamesl](https://discuss.elastic.co/u/jamesl)\
**Post date:** [June 18, 2017, 10:10pm UTC](https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819/2 "2017-06-18T22:10:18Z")

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Hi, left this and it came good after 1hr?

I think my Kibana vm needs more memory.

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**Author:** ![LeeDr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leedr/32/9289_2.png) [@LeeDr](https://discuss.elastic.co/u/LeeDr)\
**Post date:** [June 19, 2017, 1:24pm UTC](https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819/3 "2017-06-19T13:24:57Z")

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Hi jamesl,

Can you share with us how much memory your VM originally has/had? Did you increase it and try again?

I'm thinking that if the VM only runs Kibana and X-Pack it would probably need at least 2G to get past that optimization step.

For testing purposes I usually install the full stack on one VM and give it 6GB. But that's with Elasticsearch, Kibana, Logstash, and a couple of Beats running.

Lee

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 17, 2017, 1:25pm UTC](https://discuss.elastic.co/t/kibana-plugin-stuck-at-optimizing-and-caching-browser-bundles/89819/4 "2017-07-17T13:25:30Z")

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