Is flock() necessary on a simple file append?

["Kevin Grigorenko" <kevin@xxxxxxxxxxxxxxxxx>]

Hi,

I am appending to a file one line of text on every page hit, so there could
be many occurrences of this append simultaneously.  I am not opening for
write ("w") but for append ("a"). Do I need to use flock() to be sure there
are no issues?  I am running on Solaris.

Thanks,
Kevin

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