CentOSのMongodumpでエラーが出る

環境はさくらVPSCentOS 6.3

$ mongodump --db blog_app
connected to: 127.0.0.1
Thu Apr  4 16:12:10.382 DATABASE: blog_app	 to 	dump/blog_app
terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid
アボートしました

ロケールがおかしいということなのでlocaleコマンドを打ってみる

$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: LC_ALL?????????????????????: ??????????????????????
LANG=ja_JP.UTF-8
LC_CTYPE=UTF-8
LC_NUMERIC="ja_JP.UTF-8"
LC_TIME="ja_JP.UTF-8"
LC_COLLATE="ja_JP.UTF-8"
LC_MONETARY="ja_JP.UTF-8"
LC_MESSAGES="ja_JP.UTF-8"
LC_PAPER="ja_JP.UTF-8"
LC_NAME="ja_JP.UTF-8"
LC_ADDRESS="ja_JP.UTF-8"
LC_TELEPHONE="ja_JP.UTF-8"
LC_MEASUREMENT="ja_JP.UTF-8"
LC_IDENTIFICATION="ja_JP.UTF-8"
LC_ALL=

LC_ALLが空なので、exportしてみる
http://www.linuxquestions.org/questions/linux-general-1/locale-cannot-set-lc_all-to-default-locale-no-such-file-or-directory-218622/

$ export LC_ALL="ja_JP.UTF-8"

再実行

$ mongodump --db blog_app
connected to: 127.0.0.1
Thu Apr  4 16:25:30.866 DATABASE: blog_app	 to 	dump/blog_app
Thu Apr  4 16:25:30.869 	blog_app.system.indexes to dump/blog_app/system.indexes.bson
Thu Apr  4 16:25:30.870 		 2 objects
Thu Apr  4 16:25:30.870 	blog_app.entries to dump/blog_app/entries.bson
Thu Apr  4 16:25:30.885 		 0 objects
Thu Apr  4 16:25:30.885 	Metadata for blog_app.entries to dump/blog_app/entries.metadata.json
Thu Apr  4 16:25:30.885 	blog_app.users to dump/blog_app/users.bson
Thu Apr  4 16:25:30.887 		 10 objects
Thu Apr  4 16:25:30.887 	Metadata for blog_app.users to dump/blog_app/users.metadata.json

できた。