SIGNAL_NUMBER

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kesten
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SIGNAL_NUMBER

Post by kesten » Thu Jan 24, 2013 10:01 pm

In process_signals in the v_monitor table, i'd like to know what the signal_number means.

In particular, signal 10, but also a lookup for the numbers.

thanks!,

kesten

doug_harmon
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Re: SIGNAL_NUMBER

Post by doug_harmon » Fri Jan 25, 2013 5:22 am

I'm guessing that v_monitor.process_signals contains linux process signals. You can find more documentation on those here:
http://www.kernel.org/doc/man-pages/onl ... nal.7.html

According to the linux documentation, a signal of 10 corresponds to "User Defined." I'm sorry, that's not very helpful.
The v_monitor.process_signals table also contains a SIGNAL_UID column which is the ProcessID of the sending process. Perhaps you could look up the corresponding Process for that ProcessID?

scutter
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Re: SIGNAL_NUMBER

Post by scutter » Fri Jan 25, 2013 3:45 pm

Vertica uses this user-defined signal during log rotation to signal the vertica process to start a new log file.

--Sharon
Sharon Cutter
Vertica Consultant, Zazz Technologies LLC

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