Issues

• buf_file: queued file chunks keep FDs open until shutdown; resume opens all chunks — EMFILE death spiral on slow output

  fluent/fluentd#5494 · Filter by author Syed-Shahidh-Ilhan opened on Sep 10, 2026
  1

• buffer: stage_size gauge goes transiently negative when write and enqueue_chunk overlap

  bug
  fluent/fluentd#5479 · Filter by author Watson1978 opened on Aug 31, 2026

• BufferChunkOverflowError inside @ERROR loops forever - no buffer parameter can stop it

  waiting-for-user
  fluent/fluentd#5462 · Filter by author tarun9715m opened on Aug 4, 2026
  6

• <system> umask / --umask` is not applied to worker-created files under a foreground supervisor

  enhancement
  fluent/fluentd#5435 · Filter by author Watson1978 opened on Jul 14, 2026
  1

• Support to process metadata in logs type of events that defined in forward protocol v1.5

  enhancement
  fluent/fluentd#5369 · Filter by author cosmo0920 opened on Jun 2, 2026 · v1.20.0
  1

• Evacuate chunk on networking issues need limits

  enhancement
  fluent/fluentd#5352 · Filter by author vsilgalis opened on May 4, 2026

• Reload race condition causes persistent 500 responses on /aggregated_metrics endpoint

  bug
  fluent/fluentd#5310 · Filter by author roryabraham opened on Apr 1, 2026
  5

• Support secure (encrypted) handling of failed records in secondary outputs

  enhancement
  fluent/fluentd#5216 · Filter by author stagegrowth opened on Jan 6, 2026
  2

• out_forward plugin starts sending invalid packets

  bug
  fluent/fluentd#5166 · Filter by author ChristThePhone opened on Nov 24, 2025
  22

• Fluentd fails to load separate gems with same @type name

  enhancement
  fluent/fluentd#5147 · Filter by author RamHaridas opened on Nov 6, 2025
  2

• zstd compression: stop using the streaming feature

  enhancement
  fluent/fluentd#5111 · Filter by author daipom opened on Sep 29, 2025
  1

• out_file: By symlink_path, some symlinks are not created with bulk inputs

  bug
  fluent/fluentd#5099 · Filter by author tty061 opened on Sep 16, 2025
  3

• out_http: Add an ability to use ENV variables interpolation in headers_from_placeholders

  enhancement
  fluent/fluentd#5050 · Filter by author serhii-ciq opened on Aug 7, 2025

• memory leak with pattern not matched error

  enhancementmemory
  fluent/fluentd#4994 · Filter by author Watson1978 opened on Jun 4, 2025
  6

• in_tail plugin will re-read logs from the head, if log is generated less frequently than limit_recently_modified setting

  enhancement
  fluent/fluentd#4843 · Filter by author taehwoi opened on Mar 2, 2025
  1

• File permissions can't have full accesss

  enhancementhelp wanted
  fluent/fluentd#4810 · Filter by author The-LittleTeapot opened on Jan 30, 2025
  3

• https://x.com/fluentd hasn't been updated since Oct 2022

  bug
  fluent/fluentd#4806 · Filter by author ashie opened on Jan 29, 2025
  3

• Update Forward Protocol Specification for zstd compression support

  enhancementpending
  fluent/fluentd#4758 · Filter by author daipom opened on Jan 6, 2025
  48

• enable_input_metrics: inaccurate values

  bug
  fluent/fluentd#4717 · Filter by author daipom opened on Nov 27, 2024
  2

• Logs missing during heavy log volume

  enhancement
  fluent/fluentd#4693 · Filter by author jicowan opened on Nov 3, 2024
  27

• Stage buffer sometimes sticks around and doesn't ever get queued

  bug
  fluent/fluentd#4662 · Filter by author stanhu opened on Oct 10, 2024
  9

• Replace WEBrick because it is no longer recommended for production use

  enhancement
  fluent/fluentd#4648 · Filter by author sparrowt opened on Sep 26, 2024
  14

• Compatibility issues with fluentd plugins

  plugin issuework-in-progress
  fluent/fluentd#4645 · Filter by author PranavBhatSF opened on Sep 25, 2024
  2

  

• Add Fuzz-testing

  work-in-progress
  fluent/fluentd#4614 · Filter by author harshitasao opened on Aug 25, 2024
  3

• warning: literal string will be frozen in the future since Ruby 3.4.0

  pending
  fluent/fluentd#4585 · Filter by author Watson1978 opened on Aug 9, 2024
  1