docs: pipeline: outputs: splunk: document time_key and time_key_format - #2681
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📝 WalkthroughWalkthroughThe Splunk output documentation adds ChangesSplunk event time configuration
Estimated code review effort: 1 (Trivial) | ~3 minutes Merge Risk: 🔵 Low · up to The documentation change is localized, but it currently gives conflicting guidance about invalid time_key_format values in raw mode, which could mislead users about whether the output starts successfully. The PR is otherwise mergeable with this wording correction and explicit owner follow-up. Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@pipeline/outputs/splunk.md`:
- Around line 286-292: Update the time_key_format validation documentation to
scope startup failure to event-envelope mode only; ensure the raw-mode behavior
remains clear that splunk_send_raw ignores the option and an invalid pattern
does not prevent startup.
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pipeline/outputs/splunk.md
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Document the record-derived event time options added to the Splunk output
plugin in fluent-bit 36b233dcc.
- Add a time_key row to the event and index parameters table, covering the
plain key name and record accessor forms, and linking to the new
Record-derived event time section
- Add a time_key_format row for the strptime(3) format used when the key
holds a string, including the %L descriptor for fractional seconds
- Add a Record-derived event time section explaining that Fluent Bit
parses the value itself and sends the result in the HTTP Event
Collector envelope, unlike auto_extract_timestamp which delegates
parsing to the indexer
- Document the value types parsed without a format: integer, float,
numeric string, and an event time from an earlier pipeline stage
- Note that a plain key name is treated as a top-level key, so
aggregator_time and $aggregator_time are equivalent, and that nested
access needs the record accessor form
- Note that an invalid time_key_format prevents the output from starting,
since the format is prepared once at initialization
- Document the fallback path: a missing key logs at debug, a value that
cannot be parsed logs a warning, and the event timestamp is used in
both cases
- Document the interaction with the two neighbouring options: both are
ignored under splunk_send_raw, which warns rather than failing so an
unrelated pattern cannot stop a raw mode output from starting, and
time_key has no effect under auto_extract_timestamp because the time
field is omitted from the envelope entirely
- Add a YAML and classic configuration example in the page's tab style
- Scope time_key_format startup failure to envelope mod
Signed-off-by: Eric D. Schabell <eric@schabell.org>
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Document the record-derived event time options added to the Splunk output
plugin in fluent-bit 36b233dcc.
plain key name and record accessor forms, and linking to the new
Record-derived event time section
holds a string, including the %L descriptor for fractional seconds
parses the value itself and sends the result in the HTTP Event
Collector envelope, unlike auto_extract_timestamp which delegates
parsing to the indexer
numeric string, and an event time from an earlier pipeline stage
aggregator_time and $aggregator_time are equivalent, and that nested
access needs the record accessor form
since the format is prepared once at initialization
cannot be parsed logs a warning, and the event timestamp is used in
both cases
ignored under splunk_send_raw, which warns rather than failing so an
unrelated pattern cannot stop a raw mode output from starting, and
time_key has no effect under auto_extract_timestamp because the time
field is omitted from the envelope entirely
Signed-off-by: Eric D. Schabell eric@schabell.org
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