Software Requirements

Category	Supported Version
Java	BiSheng JDK 1.8 (JDK 1.8_262 preferred)
OS	OmniData Server is compatible with CentOS 7.6 and openEuler 20.03 LTS SP1.
Hadoop	Hadoop 3.2.0
ZooKeeper	ZooKeeper 3.6.2
Hive	Hive 3.1.0
Spark	Spark 3.0.0
Ceph	Ceph 14.2.8 binary package Ceph 14.2.8 source code
OpenSSL	OpenSSL 1.1.1 or later
Python	Python 3.9.2 or later
Haveged	Any

The HAF service consumes random numbers on your system. To prevent program blocking, you must enable the haveged service.

Install haveged. Skip this step if haveged has been installed.
```
yum install -y haveged
```
Enable the haveged service and configure it to start as the system boots.
```
systemctl start haveged
systemctl enable haveged.service
```
Confirm the service is enabled.
```
service haveged status
```

If the OpenSSL version is earlier than 1.1.1, the certificate fails to be issued. Upgrade OpenSSL to 1.1.1 or later.

View the Open SSL version.
```
openssl version
```
If the version is earlier than 1.1.1, upgrade it.

Obtain the software package.

wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz

Decompress, compile, and install the package.

tar -zxvf openssl-1.1.1g.tar.gz
cd openssl-1.1.1g
sudo ./config --prefix=/usr/local/openssl
sudo make -j 16
sudo make install
sudo mv /usr/bin/openssl /usr/bin/openssl.bak
sudo ln -sf /usr/local/openssl/bin/openssl /usr/bin/openssl

Open the file and add /usr/local/openssl/lib to the end of the file.
```
sudo vim /etc/ld.so.conf
```
Make the setting to take effect.
```
sudo ldconfig -v
```

Parent topic: Environment Requirements