hadoop/hadoop-ozone/docs/content/Freon.md

---
title: Freon
date: "2017-09-02T23:58:17-07:00"
menu:
   main:
      parent: Tools
---
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Overview
--------

Freon is a load-generator for Ozone. This tool is used for testing the functionality of ozone.

### Random keys

In randomkeys mode, the data written into ozone cluster is randomly generated.
Each key will be of size 10 KB.

The number of volumes/buckets/keys can be configured. The replication type and
factor (eg. replicate with ratis to 3 nodes) Also can be configured.

For more information use

`bin/ozone freon --help`

### Example

{{< highlight bash >}}
ozone freon randomkeys --numOfVolumes=10 --numOfBuckets 10 --numOfKeys 10  --replicationType=RATIS --factor=THREE
{{< /highlight >}}

{{< highlight bash >}}
***************************************************
Status: Success
Git Base Revision: 48aae081e5afacbb3240657556b26c29e61830c3
Number of Volumes created: 10
Number of Buckets created: 100
Number of Keys added: 1000
Ratis replication factor: THREE
Ratis replication type: RATIS
Average Time spent in volume creation: 00:00:00,035
Average Time spent in bucket creation: 00:00:00,319
Average Time spent in key creation: 00:00:03,659
Average Time spent in key write: 00:00:10,894
Total bytes written: 10240000
Total Execution time: 00:00:16,898
***********************
{{< /highlight >}}