out_forward: add send_keepalive_packet parameter#608
Open
Watson1978 wants to merge 1 commit intofluent:1.0from
Open
out_forward: add send_keepalive_packet parameter#608Watson1978 wants to merge 1 commit intofluent:1.0from
Watson1978 wants to merge 1 commit intofluent:1.0from
Conversation
Signed-off-by: Shizuo Fujita <fujita@clear-code.com>
Watson1978
pushed a commit
to fluent/fluentd
that referenced
this pull request
Feb 24, 2026
**Which issue(s) this PR fixes**: Fixes # **What this PR does / why we need it**: This PR adds the `send_keepalive_packet` configuration parameter to the `out_forward` plugin to enable TCP keepalive (SO_KEEPALIVE) on forward output connections. **Background:** The existing `keepalive` parameter only enables connection pooling/reuse, not TCP-level keepalive probes. This can lead to accumulation of dead connections in CLOSE-WAIT state. **Changes:** - Added `send_keepalive_packet` config parameter (default: false) - Pass the parameter to both `socket_create_tcp` and `socket_create_tls` calls - Added tests to verify the parameter works correctly **Related:** This follows the same pattern as #2352 which added the same feature to `in_forward`. **Docs Changes**: fluent/fluentd-docs-gitbook#608 **Release Note**: * out_forward: Add `send_keepalive_packet` option Signed-off-by: Ian Driver <idriver@williamhill.us> Co-authored-by: Ian Driver <idriver@williamhill.us>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
fluent/fluentd#5262
The above PR adds new feature into Fluentd 1.20.0.
So, when release Fluentd 1.20.0, we need to merge this document changes.