Question about zero metadata
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Hi Zheng,
In order to be able to read the trace, you have to stop the session (lttng stop) and a flush is automatically done in the background.
However, reading a trace while it is being created (live reading) is on the roadmap for LTTng 2.2 or later.
So, for now, you need to start/stop the tracing session.
Thanks!
David
changz:
Quoted 9 lines
Hi all,
I tried to generate one event and view the trace at run-time. It didn't work because metadata was zero. And then I found metadata couldn't be dumped to disk when sub-buffer were not filled(i.e. consumer daemon didn't read data from ring-buffer). And seems no timer to flush it because I waited for very long time. Once I stopped lttng or the application, metadata got ready at once.
Quoted 7 lines
My lttng version is 2.01. Is this a known issue?
Thanks Zheng
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