[mythtv-firehose] mythtv branch master updated by stuartm. v0.27-alpha-193-g0e8d173

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The branch, master has been updated on the
mythtv repository by gitolite user stuartm.
       via  0e8d1736e517191c017f565e66fab8aa88a5bf42 (commit)
      from  763c7caff6d05e36064765de1133e51cf1a5ec0e (commit)

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- Log -----------------------------------------------------------------
commit 0e8d1736e517191c017f565e66fab8aa88a5bf42
Author:    Stuart Morgan <smorgan at mythtv.org> at Mon, 19 Aug 2013 14:25:56 +0100
Committer: Stuart Morgan <smorgan at mythtv.org> at Mon, 19 Aug 2013 14:26:01 +0100
URL:       http://code.mythtv.org/cgit/mythtv/commit/?id=0e8d1736e517191c017f565e66fab8aa88a5bf42

Disable database logging by default.
It can be re-enabled using --enable-dblog

Until we actually start using this data somewhere there is not much
point in storing it. Since it's already known that writing to the
database can affect I/O performance, especially where drives are
shared with recordings, this could potentially even cause a positive
feedback loop. The I/O starvation causes the backend to start logging
slow read/write warnings, which in turn increase the writes to the
database exacerbating the problems.

The same problem is also true, to a greater or lesser extent with file
based logging but we actually need the file logs so there isn't much
we can do there.



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Summary of changes:
 mythtv/libs/libmythbase/logging.cpp               |    4 ++--
 mythtv/libs/libmythbase/mythcommandlineparser.cpp |    6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

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