# What is this java\_pid%pid\_number%.hprof and can it be deleted
**URL:** https://discuss.elastic.co/t/what-is-this-java-pid-pid-number-hprof-and-can-it-be-deleted/283907
**Category:** Elasticsearch
**Created:** [September 10, 2021, 6:11pm UTC](https://discuss.elastic.co/t/what-is-this-java-pid-pid-number-hprof-and-can-it-be-deleted/283907 "2021-09-10T18:11:16Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@cis4life](https://discuss.elastic.co/u/cis4life)
#### Post date: [September 10, 2021, 6:11pm UTC](https://discuss.elastic.co/t/what-is-this-java-pid-pid-number-hprof-and-can-it-be-deleted/283907/1 "2021-09-10T18:11:16Z")
I have my ES data and ES Logs going to another location, but in my /var/lib/elasticsearch I have a file named java\_pid%pid\_number%.hprof that has cause my OS drive to be out of space. which is now causing me issues. What is this and can i delete it?
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 13, 2021, 1:50am UTC](https://discuss.elastic.co/t/what-is-this-java-pid-pid-number-hprof-and-can-it-be-deleted/283907/2 "2021-09-13T01:50:29Z")
A hprof is a heap dump, which happens if the JVM has an OOM issue.
You can delete it if you want, but it's probably worth digging into.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 11, 2021, 1:50am UTC](https://discuss.elastic.co/t/what-is-this-java-pid-pid-number-hprof-and-can-it-be-deleted/283907/3 "2021-10-11T01:50:52Z")
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