>Josh Berkus wrote
> >Simon Riggs wrote
> > Please set WAL_DEBUG to 1 so we can see a bit more info: thanks.
> I'm pretty sure that WAL_DEBUG requires a compile-time option.

In my naiveté, I just set and use it. I discovered it in the code, then
set it to take advantage.

I'm surprised, but you are right, the manual does SAY this requires a
compile time option; it is unfortunately not correct. Maybe this was
once as you say? If Rob is using 7.2.2 maybe this still applies to him?
I don’t know.

Setting wal_debug > 0 in postgresql.conf sets a variable XLOGDEBUG,
which although it is all capitals is not in fact a compiler directive,
as it looks. This variable is used within xlog.c to output **too much**
information to the log. However, it is the only option at present.

This prompts me however to consider the idea of having various levels of
WAL debug output, or using some kind of log_checkpoint mechanism to
better understand what is going on.

Best Regards, Simon Riggs

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