HDDS-15653. Freon randomkeys does not throw error when inputs are negative.

[sravani-revuri]

What changes were proposed in this pull request?

Running ozone freon rk with a negative value for --numOfVolumes , --numOfBuckets or --numOfKeys does not fail with an error. Instead, the command prints a progress bar with negative value and hangs.

bash-5.1$ ozone freon rk --numOfVolumes=1 --numOfBuckets=1 --numOfKeys=-1 
2026-06-24 04:37:36,027 [main] INFO freon.RandomKeyGenerator: Number of Threads: 10
2026-06-24 04:37:36,035 [main] INFO freon.RandomKeyGenerator: Number of Volumes: 1.
2026-06-24 04:37:36,035 [main] INFO freon.RandomKeyGenerator: Number of Buckets per Volume: 1.
2026-06-24 04:37:36,035 [main] INFO freon.RandomKeyGenerator: Number of Keys per Bucket: -1.
2026-06-24 04:37:36,035 [main] INFO freon.RandomKeyGenerator: Key size: 10240 bytes
2026-06-24 04:37:36,036 [main] INFO freon.RandomKeyGenerator: Buffer size: 4096 bytes
2026-06-24 04:37:36,036 [main] INFO freon.RandomKeyGenerator: validateWrites : false
2026-06-24 04:37:36,036 [main] INFO freon.RandomKeyGenerator: Number of Validate Threads: 1
2026-06-24 04:37:36,036 [main] INFO freon.RandomKeyGenerator: cleanObjects : false
2026-06-24 04:37:36,038 [main] INFO freon.RandomKeyGenerator: Starting progress bar Thread.

 -0.00% |?                                                                                                    |  0/-1 Time: 0:00:00|  
2026-06-24 04:37:36,044 [pool-2-thread-1] INFO rpc.RpcClient: Creating Volume: vol-0-97512, with hadoop as owner and space quota set to -1 bytes, counts quota set to -1
2026-06-24 04:37:36,083 [pool-2-thread-2] INFO rpc.RpcClient: Creating Bucket: vol-0-97512/bucket-0-75850, with server-side default bucket layout, hadoop as owner, Versioning false, Storage Type set to DISK and Encryption set to false, Replication Type set to server-side default replication type, Namespace Quota set to -1, Space Quota set to -1 
^C
***************************************************
Status: Success
Git Base Revision: 9d50c6884666e794e45102260a4017bb31802e1b
Number of Volumes created: 1
Number of Buckets created: 1
Number of Keys added: 0
Average Time spent in volume creation: 00:00:00,002
Average Time spent in bucket creation: 00:00:00,001
Average Time spent in key creation: 00:00:00,000
Average Time spent in key write: 00:00:00,000
Total bytes written: 0
Total Execution time: 00:00:26,117
***************************************************

For decimal input:

bash-5.1$ ozone freon rk --numOfVolumes=0.1 --numOfBuckets=1 --numOfKeys=1 
Invalid value for option '--num-of-volumes': '0.1' is not an int

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-15653

How was this patch tested?

Manual Test.

bash-5.1$ ozone freon rk --numOfVolumes=-1 --numOfBuckets=1 --numOfKeys=1 
Invalid command, numOfVolumes must be a positive integer
bash-5.1$ ozone freon rk --numOfVolumes=1 --numOfBuckets=-1 --numOfKeys=1 
Invalid command, numOfBuckets must be a positive integer
bash-5.1$ ozone freon rk --numOfVolumes=1 --numOfBuckets=1 --numOfKeys=-1 
Invalid command, numOfKeys must be a positive integer
bash-5.1$ ozone freon rk --numOfVolumes=-1 --numOfBuckets=-1 --numOfKeys=-1 
Invalid command, numOfVolumes must be a positive integer