[lttng-dev] how to disable local file writing in relayd?
mathieu.desnoyers at efficios.com
Wed Mar 8 09:45:01 EST 2023
On 2023-03-06 00:12, Yuan Bin via lttng-dev wrote:
> Can I disable local-file-writing in lttng-relayd to avoid the disk
> space overhead, only using it as a live viewer?
Not explicitly, but you can store your temporary files on a tmpfs file
system (see lttng-relayd(8) --output command line parameter), which will
only keep the relayd files in memory, and use the tracefile rotation
feature to prevent the files from growing forever, e.g.:
Example:Create a Linux kernel channel which rotates eight trace files of
4 MiB each for each stream.
lttng enable-channel --kernel --tracefile-count=8 \
See lttng-enable-channel(1) for more info.
I hope this helps!
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