Describe the bug
We output to multiple locations, one of the locations was down for a long period of time and fluent began evacuating chunks to the root_dir until it filled up the disk. It would be good to add an option to limit the size of the evacuated chunks or disable the functionality
To Reproduce
Make an output unreachable/timeout and let the logs flow until root_dir is full.
Expected behavior
Evacuated chunks should have a limit to prevent filling up the disk or the feature should be able to be disabled. Or both
Your Environment
- Fluentd version: 1.19.0
- Package version:
- Operating system:
- Kernel version:
Your Configuration
Any config with an output that can be unavailable/unreachable
Your Error Log
2026-05-04 15:15:29 +0000 [warn]: #0 chunk files are evacuated to /tmp/fluent/buffer/object_570. chunk_id="650ff4c25bf36ff8208adc20ecb6e68d"
Additional context
No response
Describe the bug
We output to multiple locations, one of the locations was down for a long period of time and fluent began evacuating chunks to the root_dir until it filled up the disk. It would be good to add an option to limit the size of the evacuated chunks or disable the functionality
To Reproduce
Make an output unreachable/timeout and let the logs flow until root_dir is full.
Expected behavior
Evacuated chunks should have a limit to prevent filling up the disk or the feature should be able to be disabled. Or both
Your Environment
Your Configuration
Your Error Log
2026-05-04 15:15:29 +0000 [warn]: #0 chunk files are evacuated to /tmp/fluent/buffer/object_570. chunk_id="650ff4c25bf36ff8208adc20ecb6e68d"Additional context
No response