user/dev discussion of public-inbox itself
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From: Eric Wong <>
Subject: Xapian::DB_NO_SYNC option?
Date: Mon, 27 Jan 2020 09:46:30 +0000
Message-ID: <20200127094630.GA16809@dcvr> (raw)

Since 1.3.2, Xapian has supports a DB_NO_SYNC flag to disable
fsync().  It's available from the new SWIG "Xapian" Perl
bindings, but not the old Search::Xapian XS binding, though it's
easy enough to define ourselves (0x4) when encountering Xapian

So I'm wondering if it'd be useful for anybody to provide a
switch or command-line option to disable fsync?  SQLite also
has a PRAGMA to control fsync usage.

Personally, I use the "eatmydata" LD_PRELOAD wrapper a lot and
have always found public-inbox-index and one-off importer
scripts completely unusable without eatmydata.

Everything we store in Xapian, (and even SQLite nowadays) is
regeneratable, anyways, so no risk of data loss in the worst

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user/dev discussion of public-inbox itself

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