Getting Data In

Why are events ingested using the journald modular input truncated at 4088 bytes?


I'm pulling in events from the journal of a number of Linux hosts using the journald modular input.

I'm seeing truncated events every so often and, when I look at the length of _raw, I see that it's always 4088 bytes.

The man page for journalctl ( says that when events are outputted using JSON format, that "Fields larger than 4096 bytes are encoded as null values. (This may be turned off by passing --all, but be aware that this may allocate overly long JSON objects.)"

I'm presuming that that's what happening with the truncated events that I'm seeing.   Is anyone aware of a way around this?  I can't see any configuration setting associated with the journald modular input that would let me enable the '--all' flag.

FWIW, I'm running Splunk Enterprise 9.0.2

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