            If set, zero all pages of a log file when that log file is created. 
                 This has shown to provide greater transaction throughput in some
                 environments. The log file will be zeroed by the thread which needs to
                 re-create the new log file.  Other threads may not write to the log
                 file while this is happening.
            </p>
                <p>
                Calling <code class="methodname">DbEnv::log_set_config()</code> with the
   