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.\" ========================================================================
.\"
.IX Title "MongoDB::WriteConcern 3pm"
.TH MongoDB::WriteConcern 3pm "2020-08-15" "perl v5.30.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
MongoDB::WriteConcern \- Encapsulate and validate a write concern
.SH "VERSION"
.IX Header "VERSION"
version v2.2.2
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    $rp = MongoDB::WriteConcern\->new(); # w:1, wtimeout: 1000
\&
\&    $rp = MongoDB::WriteConcern\->new(
\&        w        => \*(Aqmajority\*(Aq,
\&        wtimeout => 10000, # milliseconds
\&    );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A write concern describes the guarantee that MongoDB provides when reporting on
the success of a write operation.
.PP
For core documentation on read preference see
<http://docs.mongodb.org/manual/core/read\-preference/>.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SS "w"
.IX Subsection "w"
Specifies the desired acknowledgement level. If not set, the
server default will be used, which is usually \*(L"1\*(R".
.SS "wtimeout"
.IX Subsection "wtimeout"
Specifies how long to wait for the write concern to be satisfied (in
milliseconds).  Defaults to 1000. If you set this to undef, it could block
indefinitely (or until socket timeout is reached).
.SS "j"
.IX Subsection "j"
The j option confirms that the mongod instance has written the data to the
on-disk journal.  Defaults to false.
.PP
\&\fBNote\fR: specifying a write concern that set j to a true value may result in an
error with a mongod or mongos running with \-\-nojournal option now errors.
.SH "AUTHORS"
.IX Header "AUTHORS"
.IP "\(bu" 4
David Golden <david@mongodb.com>
.IP "\(bu" 4
Rassi <rassi@mongodb.com>
.IP "\(bu" 4
Mike Friedman <friedo@friedo.com>
.IP "\(bu" 4
Kristina Chodorow <k.chodorow@gmail.com>
.IP "\(bu" 4
Florian Ragwitz <rafl@debian.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is Copyright (c) 2020 by MongoDB, Inc.
.PP
This is free software, licensed under:
.PP
.Vb 1
\&  The Apache License, Version 2.0, January 2004
.Ve