---
title: "Data Forest troubleshooting"
slug: "df-troubleshoot"
updated: 2026-09-17T09:18:06Z
published: 2026-09-17T09:18:06Z
canonical: "guide.ncloud-docs.com/df-troubleshoot"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Forest troubleshooting

Available in Classic and VPC

You might run into the following problems when using Data Forest. Find out causes and possible solutions.

## Account password lost

I lost my Data Forest account password.

#### Cause

If you lost your password or need to change it, you can reset it. To reset your account password:

#### Solution

To reset your account password:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to **Menu** > **All Services** > **Big Data & Analytics** > **Data Forest** > **Accounts**.
2. Select the account to reset, then go to **Change account settings** > **[Reset account password]**.
3. When the Initialize account password window appears, enter the new password and click the **[Change]** button.

## Lost Kerberos keytab

I lost my Kerberos keytab.

#### Cause

If you lost the downloaded keytab or need to rotate it, you can reissue the Kerberos keytab.

#### Solution

To reissue your Kerberos keytab:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to **Menu** > **All Services** > **Big Data & Analytics** > **Data Forest** > **Accounts**.
2. Select the account, then go to **Change account settings** > **Initialize Kerberos keytab**.
3. When the Initialize Kerberos keytab window appears, review the details and click **[Initialize]**.

## Unable to upload HDFS files

HDFS files fail to upload.

#### Cause

HDFS has limits on the number of files and total size.

#### Solution

To change the file count and size limits for HDFS:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to **Menu** > **All Services** > **Big Data & Analytics** > **Data Forest** > **Accounts**.
2. Select the account, then navigate to **Change account settings** > **Change HDFS quota**.
3. In the Change HDFS quota popup, set the desired limits and click **[Change]**.

## Learning resources

We offer various materials for you to explore. To learn more about Data Forest, check out these helpful links:

- FAQs: [Data Forest FAQs](https://www.ncloud.com/support/faq/prod?categoryCode2=ANALY&categoryCode3=SV_0183&page=1)
- NAVER Cloud Platform blog: [Try the Data Forest product](https://blog.naver.com/n_cloudplatform/222588199847?trackingCode=blog_bloghome_searchlist).
- NAVER Cloud Platform blog: [Process data with Spark and Hive on NAVER Cloud Platform Data Forest (Part 1)](https://blog.naver.com/n_cloudplatform/222438467443?trackingCode=blog_bloghome_searchlist).
- NAVER Cloud Platform blog: [Process data with Spark and Hive on NAVER Cloud Platform Data Forest (Part 2)](https://blog.naver.com/n_cloudplatform/222439326464?trackingCode=blog_bloghome_searchlist).

              Note

              

If you're still having trouble finding what you need, click on the feedback icon and send us your thoughts and requests. We'll use your feedback to improve this guide.