It looks like the problem is that you are not updating at the top level, so the TIE interface is not picking up your changes. See the note under the BUGS section of the MLDBM (not MLDBM::Sync) docs. It's a limitation of Perl's TIE interface, and has a simple (albeit not pretty) workaround.

In reply to Re: Problem storing value in persistent hash with MLDBM by perrin
in thread Problem storing value in persistent hash with MLDBM by relax99

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