#docslug#/obloader-obdumper/obloader-obdumper/V3.1.0/obloader-environmental-preparation
Before you run OBLOADER, make sure that you have the appropriate operating environment and privileges.
Operating environment configurations
| Configuration item | Requirements |
|---|---|
| OS | Linux, macOS, and Windows 7 or later |
| Java environment | Install Oracle JDK 1.8, and configure the JAVA_HOME environment variable. We do not recommend that you use OpenJDK. |
| Character set | We recommend that you use UTF-8 as the file character set. |
| Java virtual machine (JVM) parameters | Modify the JVM memory parameter in the bin/obloader script to avoid JVM memory insufficiency. |
Note
Due to serious garbage collection (GC) bugs in some versions of OpenJDK 1.8, an out of memory (OOM) error or a hang will occur when OBLOADER is running. Therefore, install the latest minor version of OpenJDK 1.8.
Privileges
When you connect OBLOADER to OceanBase Database and use this tool to import data, you must have the following privileges:
The user account that you use to connect to OceanBase Database must have the privileges to execute the
SELECT,INSERT,MERGE, andUPDATEstatements.In non-limited mode, the
--sys-userand--sys-passwordoptions must be specified for OBLOADER.Notice
The--sys-userand--sys-passwordoptions must be set to the username and password of a user with system table and view query privileges under the SYS tenant.