Description
Here's the help output (2.4.4, mongodump):
options:
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--help produce help message
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-v [ --verbose ] be more verbose (include multiple times |
for more verbosity e.g. -vvvvv) |
--version print the program's version and exit |
-h [ --host ] arg mongo host to connect to ( <set |
name>/s1,s2 for sets) |
--port arg server port. Can also use --host
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hostname:port |
--ipv6 enable IPv6 support (disabled by |
default)
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-u [ --username ] arg username
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-p [ --password ] arg password
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--authenticationDatabase arg user source (defaults to dbname) |
--authenticationMechanism arg (=MONGODB-CR)
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authentication mechanism
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--dbpath arg directly access mongod database files
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in the given path, instead of |
connecting to a mongod server - needs
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to lock the data directory, so cannot
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be used if a mongod is currently |
accessing the same path
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--directoryperdb each db is in a separate directly |
(relevant only if dbpath specified) |
--journal enable journaling (relevant only if |
dbpath specified)
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-d [ --db ] arg database to use
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-c [ --collection ] arg collection to use (some commands)
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--objcheck validate object before inserting
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(default)
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--noobjcheck don't validate object before inserting
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--filter arg filter to apply before inserting
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--drop drop each collection before import |
--oplogReplay replay oplog for point-in-time restore |
--oplogLimit arg include oplog entries before the
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provided Timestamp (seconds[:ordinal])
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during the oplog replay; the ordinal
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value is optional
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--keepIndexVersion don't upgrade indexes to newest version
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--noOptionsRestore don't restore collection options
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--noIndexRestore don't restore indexes
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--w arg (=0) minimum number of replicas per write
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Note the authenticationMechanism line. If we move the default value to a note (the same as dbname in the line above it) you get this:
./mongodump --help |
Export MongoDB data to BSON files.
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options:
|
--help produce help message
|
-v [ --verbose ] be more verbose (include multiple times for |
more verbosity e.g. -vvvvv) |
--quiet silence all non error diagnostic messages
|
--version print the program's version and exit |
-h [ --host ] arg mongo host to connect to ( <set name>/s1,s2 for |
sets)
|
--port arg server port. Can also use --host hostname:port |
--ipv6 enable IPv6 support (disabled by default) |
-u [ --username ] arg username
|
-p [ --password ] arg password
|
--authenticationDatabase arg user source (defaults to dbname) |
--authenticationMechanism arg authentication mechanism (defaults to
|
MONOGDB-CR)
|
--dbpath arg directly access mongod database files in the |
given path, instead of connecting to a mongod
|
server - needs to lock the data directory, so
|
cannot be used if a mongod is currently |
accessing the same path
|
--directoryperdb each db is in a separate directly (relevant |
only if dbpath specified) |
--journal enable journaling (relevant only if dbpath |
specified)
|
-d [ --db ] arg database to use
|
-c [ --collection ] arg collection to use (some commands)
|
-o [ --out ] arg (=dump) output directory or "-" for stdout |
-q [ --query ] arg json query
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--oplog Use oplog for point-in-time snapshotting |
--repair try to recover a crashed database
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--forceTableScan force a table scan (do not use $snapshot) |
Here's the change (can do a pull request if needed), it's a two line change:
git diff
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diff --git a/src/mongo/tools/tool.cpp b/src/mongo/tools/tool.cpp
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index b54db16..24904f7 100644
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--- a/src/mongo/tools/tool.cpp
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+++ b/src/mongo/tools/tool.cpp
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@@ -74,8 +74,8 @@ namespace mongo {
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po::value<string>(&_authenticationDatabase)->default_value(""),
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"user source (defaults to dbname)" )
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("authenticationMechanism",
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- po::value<string>(&_authenticationMechanism)->default_value("MONGODB-CR"),
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- "authentication mechanism")
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+ po::value<string>(&_authenticationMechanism)->default_value(""),
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+ "authentication mechanism (defaults to MONOGDB-CR)")
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;
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if ( access & LOCAL_SERVER )
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