n.v.harikrishna created CASSSIDECAR-366:
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Summary: Add System Disk Information Endpoint to Cassandra Sidecar
Key: CASSSIDECAR-366
URL: https://issues.apache.org/jira/browse/CASSSIDECAR-366
Project: Sidecar for Apache Cassandra
Issue Type: New Feature
Components: Rest API
Reporter: n.v.harikrishna
Assignee: n.v.harikrishna
Want to introduce a new REST API endpoint to retrieve system disk information,
providing storage capacity and usage metrics for all mounted file systems on
the host.
Use Cases
- Monitor disk space across Cassandra nodes
- Can be used to alert on low disk space conditions
- Helps for capacity planning and operational troubleshooting
New REST Endpoint:
- Path: /api/v1/system/disk-info
- Method: GET
- Authorization: Requires SYSTEM permission (a new permission that will be
added)
- Response: JSON array of disk information objects
Sample Response:
[
{
"totalSpace": 1000000000000,
"freeSpace": 500000000000,
"usableSpace": 450000000000,
"name": "data1",
"mount": "/dev/sda1",
"type": "ext4"
}
]
Proposing to add OSHI library as a dependency to fetch the disk information.
OSHI is a free JNA-based (native) Operating System and Hardware Information
library for Java. It provides a cross-platform implementation to retrieve
system information such as OS version, processes, memory and CPU usage, disks
and partitions, devices, and sensors without requiring additional native
libraries. This library uses the MIT License.
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