[freenet-dev] Logging in Fred

[Marco Schulze]

How often does what happen?

On 19-03-2012 20:21, Martin Nyhus wrote:
> On Monday 19. March 2012 22:56:42 Marco Schulze wrote:
>> Synchronization is the reason every thread should wait. If the log is
>> always flushed and fred crashes, you know exactly where the last good
>> checkpoint was before the crash. If the log is buffered (or
>> asynchronous), the thread may be miles ahead from the last message
>> written to disk, and suddenly you have no idea where to look for the
>> bug. Shotgun debugging indeed.
> How often does this actually happen? Considering the performance penalty it
> has to fix a very real problem IMHO, especially since having logging change
> how the code behaves in such a dramatic way will make debugging anything that
> depends on timing that much harder.
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