# How to take JMap dump inside elasticsearch docker container?

**URL:** <https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363>\
**Category:** Elasticsearch\
**Tags:** docker\
**Created:** [March 7, 2019, 5:50pm UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363 "2019-03-07T17:50:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![karthikeayan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/karthikeayan/32/41673_2.png) [@karthikeayan](https://discuss.elastic.co/u/karthikeayan)\
**Post date:** [March 7, 2019, 5:50pm UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363/1 "2019-03-07T17:50:01Z")

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I am running elasticsearch using docker container, and i want to take the heap dump of the elasticsearch.

When I exec inside the container, I couldn't find jmap inside it.

I tried installing openjdk8 package since the container runs on alphine, but I am getting permission denied error.

```auto
/usr/share/elasticsearch/bin $ apk add openjdk8
ERROR: Unable to lock database: Permission denied
ERROR: Failed to open apk database: Permission denied

/usr/share/elasticsearch/bin $ find / -name jmap
find: /root: Permission denied
find: /proc/tty/driver: Permission denied
/usr/share/elasticsearch/bin $

```

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [March 7, 2019, 6:04pm UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363/2 "2019-03-07T18:04:31Z")

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May be you need to sudo or run as root?

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<div class="post-metadata">

**Author:** ![karthikeayan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/karthikeayan/32/41673_2.png) [@karthikeayan](https://discuss.elastic.co/u/karthikeayan)\
**Post date:** [March 7, 2019, 6:11pm UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363/3 "2019-03-07T18:11:47Z")

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It is running on alphine docker container, sudo command is not there.

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [March 8, 2019, 9:21am UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363/4 "2019-03-08T09:21:56Z")

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Would something like that work?

```auto
docker exec -it -u root /bin/bash

```

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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:** [April 5, 2019, 9:21am UTC](https://discuss.elastic.co/t/how-to-take-jmap-dump-inside-elasticsearch-docker-container/171363/5 "2019-04-05T09:21:57Z")

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