* fedora 23 : $releasever = 7
2016.02.21
- Install MongoDB >
- Install MongoDB Community Edition >
- Install MongoDB Community Edition on Linux >
- Install MongoDB Community Edition on Red Hat Enterprise or CentOS Linux
Install MongoDB Community Edition on Red Hat Enterprise or CentOS Linux
On this page
Overview
Use this tutorial to install MongoDB Community Edition on Red Hat Enterprise Linux or CentOS Linux versions 6 and 7 using .rpm packages. While some of these distributions include their own MongoDB packages, the official MongoDB Community Edition packages are generally more up to date.
PLATFORM SUPPORT
This installation guide only supports 64-bit systems. See Platform Support for details.
MongoDB 3.2 deprecates support for Red Hat Enterprise Linux 5.
Packages
MongoDB provides officially supported packages in their own repository. This repository contains the following packages:
| mongodb-org | A metapackage that will automatically install the four component packages listed below. |
| mongodb-org-server | Contains the mongod daemon and associated configuration and init scripts. |
| mongodb-org-mongos | Contains the mongos daemon. |
| mongodb-org-shell | Contains the mongo shell. |
| mongodb-org-tools | Contains the following MongoDB tools: mongoimport bsondump, mongodump,mongoexport, mongofiles, mongooplog, mongoperf, mongorestore, mongostat, and mongotop. |
The default /etc/mongod.conf configuration file supplied by the packages have bind_ip set to127.0.0.1 by default. Modify this setting as needed for your environment before initializing a replica set.
Init Scripts
The mongodb-org package includes various init scripts, including the init script/etc/rc.d/init.d/mongod. You can use these scripts to stop, start, and restart daemon processes.
The package configures MongoDB using the /etc/mongod.conf file in conjunction with the init scripts. See the Configuration File reference for documentation of settings available in the configuration file.
As of version 3.2.3, there are no init scripts for mongos. The mongos process is used only in sharding. You can use the mongod init script to derive your own mongos init script for use in such environments. See themongos reference for configuration details.
The default /etc/mongod.conf configuration file supplied by the packages have bind_ip set to127.0.0.1 by default. Modify this setting as needed for your environment before initializing a replica set.
Install MongoDB Community Edition
NOTE
To install a version of MongoDB prior to 3.2, please refer to that version’s documentation. For example, see version 3.0.
This installation guide only supports 64-bit systems. See Platform Support for details.
Configure the package management system (yum).
Create a /etc/yum.repos.d/mongodb-org-3.2.repo file so that you can install MongoDB directly, using yum.
Changed in version 3.0: MongoDB Linux packages are in a new repository beginning with 3.0.
For the latest stable release of MongoDB
Use the following repository file:
[mongodb-org-3.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.2/x86_64/
gpgcheck=0
enabled=1
For versions of MongoDB earlier than 3.0
To install the packages from an earlier release series, such as 2.4 or 2.6, you can specify the release series in the repository configuration. For example, to restrict your system to the 2.6 release series, create a /etc/yum.repos.d/mongodb-org-2.6.repo file to hold the following configuration information for the MongoDB 2.6 repository:
[mongodb-org-2.6]
name=MongoDB 2.6 Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
You can find .repo files for each release in the repository itself. Remember that odd-numbered minor release versions (e.g. 2.5) are development versions and are unsuitable for production use.
Install the MongoDB packages and associated tools.
When you install the packages, you choose whether to install the current release or a previous one. This step provides the commands for both.
To install the latest stable version of MongoDB, issue the following command:
sudo yum install -y mongodb-org
To install a specific release of MongoDB, specify each component package individually and append the version number to the package name, as in the following example:
sudo yum install -y mongodb-org-3.2.3 mongodb-org-server-3.2.3 mongodb-org-shell-3.2.3 mongodb-org-mongos-3.2.3 mongodb-org-tools-3.2.3
You can specify any available version of MongoDB. However yum will upgrade the packages when a newer version becomes available. To prevent unintended upgrades, pin the package. To pin a package, add the following exclude directive to your /etc/yum.conf file:
exclude=mongodb-org,mongodb-org-server,mongodb-org-shell,mongodb-org-mongos,mongodb-org-tools
Run MongoDB Community Edition
Prerequisites
Configure SELinux
IMPORTANT
You must configure SELinux to allow MongoDB to start on Red Hat Linux-based systems (Red Hat Enterprise Linux or CentOS Linux).
To configure SELinux, administrators have three options:
NOTE
All three options require root privileges. The first two options each requires a system reboot and may have larger implications for your deployment.
Disable SELinux entirely by changing the SELINUX setting to disabled in/etc/selinux/config.
SELINUX=disabled
Set SELinux to permissive mode in /etc/selinux/config by changing the SELINUX setting to permissive .
SELINUX=permissive
NOTE
You can use setenforce to change to permissive mode; this method does not require a reboot but is not persistent.
Enable access to the relevant ports (e.g. 27017) for SELinux if in enforcing mode. See Default MongoDB Port for more information on MongoDB’s default ports. For default settings, this can be accomplished by running
semanage port -a -t mongod_port_t -p tcp 27017
WARNING
On RHEL 7.0, if you change the data path, the default SELinux policies will prevent mongod from having write access on the new data path if you do not change the security context.
You may alternatively choose not to install the SELinux packages when you are installing your Linux operating system, or choose to remove the relevant packages. This option is the most invasive and is not recommended.
Data Directories and Permissions
WARNING
On RHEL 7.0, if you change the data path, the default SELinux policies will prevent mongod from having write access on the new data path if you do not change the security context.
The MongoDB instance stores its data files in /var/lib/mongo and its log files in /var/log/mongodbby default, and runs using the mongod user account. You can specify alternate log and data file directories in/etc/mongod.conf. See systemLog.path and storage.dbPath for additional information.
If you change the user that runs the MongoDB process, you must modify the access control rights to the/var/lib/mongo and /var/log/mongodb directories to give this user access to these directories.
Procedure
Start MongoDB.
You can start the mongod process by issuing the following command:
sudo service mongod start
Verify that MongoDB has started successfully
You can verify that the mongod process has started successfully by checking the contents of the log file at /var/log/mongodb/mongod.log for a line reading
[initandlisten] waiting for connections on port <port>
where <port> is the port configured in /etc/mongod.conf, 27017 by default.
You can optionally ensure that MongoDB will start following a system reboot by issuing the following command:
sudo chkconfig mongod on
Stop MongoDB.
As needed, you can stop the mongod process by issuing the following command:
sudo service mongod stop
Restart MongoDB.
You can restart the mongod process by issuing the following command:
sudo service mongod restart
You can follow the state of the process for errors or important messages by watching the output in the/var/log/mongodb/mongod.log file.
Begin using MongoDB.
To help you start using MongoDB, MongoDB provides Getting Started Guides in various driver editions. See Getting Started for the available editions.
Before deploying MongoDB in a production environment, consider the Production Notes document.
Later, to stop MongoDB, press Control+C in the terminal where the mongod instance is running.
Uninstall MongoDB Community Edition
To completely remove MongoDB from a system, you must remove the MongoDB applications themselves, the configuration files, and any directories containing data and logs. The following section guides you through the necessary steps.
WARNING
This process will completely remove MongoDB, its configuration, and all databases. This process is not reversible, so ensure that all of your configuration and data is backed up before proceeding.
Remove Packages.
Remove any MongoDB packages that you had previously installed.
sudo yum erase $(rpm -qa | grep mongodb-org)
Remove Data Directories.
Remove MongoDB databases and log files.
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongosource - https://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat/
- Install MongoDB >
- Install on Linux >
- Install MongoDB on Red Hat Enterprise or CentOS Linux
Install MongoDB on Red Hat Enterprise or CentOS Linux¶
Overview
Use this tutorial to install MongoDB on Red Hat Enterprise Linux or CentOS Linux versions 5, 6, and 7 using.rpm packages. While some of these distributions include their own MongoDB packages, the official MongoDB packages are generally more up to date.
PLATFORM SUPPORT
This installation guide only supports 64-bit systems. See Platform Support for details.
Packages
MongoDB provides officially supported packages in their own repository. This repository contains the following packages:
mongodb-org
This package is a metapackage that will automatically install the four component packages listed below.
mongodb-org-server
This package contains the mongod daemon and associated configuration and init scripts.
mongodb-org-mongos
This package contains the mongos daemon.
mongodb-org-shell
This package contains the mongo shell.
mongodb-org-tools
This package contains the following MongoDB tools: mongoimport bsondump, mongodump,mongoexport, mongofiles, mongooplog, mongoperf, mongorestore, mongostat, andmongotop.
Init Scripts
The mongodb-org package includes various init scripts, including the init script/etc/rc.d/init.d/mongod. These scripts are used to stop, start, and restart daemon processes.
The package configures MongoDB using the /etc/mongod.conf file in conjunction with the init scripts. See the Configuration File reference for documentation of settings available in the configuration file.
As of version 3.2.0, there are no init scripts for mongos. The mongos process is used only in sharding. You can use the mongod init script to derive your own mongos init script for use in such environments. See themongos reference for configuration details.
Considerations
This installation guide only supports 64-bit systems. See Platform Support for details.
The default /etc/mongod.conf configuration file supplied by the 3.0 series packages has bind_ip set to 127.0.0.1 by default. Modify this setting as needed for your environment before initializing a replica set.
Changed in version 2.6: The package structure and names have changed as of version 2.6. For instructions on installation of an older release, please refer to the documentation for the appropriate version.
Install MongoDB
Configure the package management system (yum).
Create a /etc/yum.repos.d/mongodb-org-3.2.repo file so that you can install MongoDB directly, using yum.
Changed in version 3.0: MongoDB Linux packages are in a new repository beginning with 3.0.
For the latest stable release of MongoDB
Use the following repository file:
[mongodb-org-3.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.2/x86_64/
gpgcheck=0
enabled=1
* fedora 23 : $releasever = 7
For versions of MongoDB earlier than 3.0
To install the packages from an earlier release series, such as 2.4 or 2.6, you can specify the release series in the repository configuration. For example, to restrict your system to the 2.6 release series, create a /etc/yum.repos.d/mongodb-org-2.6.repo file to hold the following configuration information for the MongoDB 2.6 repository:
[mongodb-org-2.6]
name=MongoDB 2.6 Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
You can find .repo files for each release in the repository itself. Remember that odd-numbered minor release versions (e.g. 2.5) are development versions and are unsuitable for production use.
Install the MongoDB packages and associated tools.
When you install the packages, you choose whether to install the current release or a previous one. This step provides the commands for both.
To install the latest stable version of MongoDB, issue the following command:
sudo yum install -y mongodb-org
To install a specific release of MongoDB, specify each component package individually and append the version number to the package name, as in the following example:
sudo yum install -y mongodb-org-3.2.0 mongodb-org-server-3.2.0 mongodb-org-shell-3.2.0 mongodb-org-mongos-3.2.0 mongodb-org-tools-3.2.0
You can specify any available version of MongoDB. However yum will upgrade the packages when a newer version becomes available. To prevent unintended upgrades, pin the package. To pin a package, add the following exclude directive to your /etc/yum.conf file:
exclude=mongodb-org,mongodb-org-server,mongodb-org-shell,mongodb-org-mongos,mongodb-org-tools
Versions of the MongoDB packages before 2.6 use a different repo location. Refer to the version of the documentation appropriate for your MongoDB version.
Run MongoDB
Prerequisites
Configure SELinux
IMPORTANT
You must configure SELinux to allow MongoDB to start on Red Hat Linux-based systems (Red Hat Enterprise Linux or CentOS Linux).
To configure SELinux, administrators have three options:
NOTE
All three options require root privileges. The first two options each requires a system reboot and may have larger implications for your deployment.
Disable SELinux entirely by changing the SELINUX setting to disabled in/etc/selinux/config.
SELINUX=disabled
Set SELinux to permissive mode in /etc/selinux/config by changing the SELINUX setting to permissive .
SELINUX=permissive
NOTE
You can use setenforce to change to permissive mode; this method does not require a reboot but is not persistent.
Enable access to the relevant ports (e.g. 27017) for SELinux if in enforcing mode. See Default MongoDB Port for more information on MongoDB’s default ports. For default settings, this can be accomplished by running
semanage port -a -t mongod_port_t -p tcp 27017
WARNING
On RHEL 7.0, if you change the data path, the default SELinux policies will prevent mongod from having write access on the new data path if you do not change the security context.
You may alternatively choose not to install the SELinux packages when you are installing your Linux operating system, or choose to remove the relevant packages. This option is the most invasive and is not recommended.
Data Directories and Permissions
WARNING
On RHEL 7.0, if you change the data path, the default SELinux policies will prevent mongod from having write access on the new data path if you do not change the security context.
The MongoDB instance stores its data files in /var/lib/mongo and its log files in /var/log/mongodbby default, and runs using the mongod user account. You can specify alternate log and data file directories in/etc/mongod.conf. See systemLog.path and storage.dbPath for additional information.
If you change the user that runs the MongoDB process, you must modify the access control rights to the/var/lib/mongo and /var/log/mongodb directories to give this user access to these directories.
Procedure
Start MongoDB.
You can start the mongod process by issuing the following command:
sudo service mongod start
Verify that MongoDB has started successfully
You can verify that the mongod process has started successfully by checking the contents of the log file at /var/log/mongodb/mongod.log for a line reading
[initandlisten] waiting for connections on port <port>
where <port> is the port configured in /etc/mongod.conf, 27017 by default.
You can optionally ensure that MongoDB will start following a system reboot by issuing the following command:
sudo chkconfig mongod on
Stop MongoDB.
As needed, you can stop the mongod process by issuing the following command:
sudo service mongod stop
Restart MongoDB.
You can restart the mongod process by issuing the following command:
sudo service mongod restart
You can follow the state of the process for errors or important messages by watching the output in the/var/log/mongodb/mongod.log file.
Begin using MongoDB.
To help you start using MongoDB, MongoDB provides Getting Started Guides in various driver editions. See Getting Started for the available editions.
Before deploying MongoDB in a production environment, consider the Production Notes document.
Later, to stop MongoDB, press Control+C in the terminal where the mongod instance is running.
Uninstall MongoDB
To completely remove MongoDB from a system, you must remove the MongoDB applications themselves, the configuration files, and any directories containing data and logs. The following section guides you through the necessary steps.
WARNING
This process will completely remove MongoDB, its configuration, and all databases. This process is not reversible, so ensure that all of your configuration and data is backed up before proceeding.
Remove Packages.
Remove any MongoDB packages that you had previously installed.
sudo yum erase $(rpm -qa | grep mongodb-org)
Remove Data Directories.
Remove MongoDB databases and log files.
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongosource - https://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat/
# mongo
MongoDB shell version: 3.2.0
connecting to: test
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, see
http://docs.mongodb.org/
Questions? Try the support group
http://groups.google.com/group/mongodb-user
Server has startup warnings:
2016-01-02T22:19:40.051+0900 I CONTROL [initandlisten]
2016-01-02T22:19:40.051+0900 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-01-02T22:19:40.051+0900 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2016-01-02T22:19:40.051+0900 I CONTROL [initandlisten]
- Administration >
- Administration Tutorials >
- Configuration, Maintenance, and Analysis >
- Disable Transparent Huge Pages (THP)
Disable Transparent Huge Pages (THP)
Transparent Huge Pages (THP) is a Linux memory management system that reduces the overhead of Translation Lookaside Buffer (TLB) lookups on machines with large amounts of memory by using larger memory pages.
However, database workloads often perform poorly with THP, because they tend to have sparse rather than contiguous memory access patterns. You should disable THP on Linux machines to ensure best performance with MongoDB.
Init Script
IMPORTANT
If you are using tuned or ktune (for example, if you are running Red Hat or CentOS 6+), you must additionally configure them so that THP is not re-enabled. See Using tuned and ktune.
Create the init.d script.
Create the following file at /etc/init.d/disable-transparent-hugepages:
#!/bin/sh
### BEGIN INIT INFO
# Provides: disable-transparent-hugepages
# Required-Start: $local_fs
# Required-Stop:
# X-Start-Before: mongod mongodb-mms-automation-agent
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description: Disable Linux transparent huge pages, to improve
# database performance.
### END INIT INFO
case $1 in
start)
if [ -d /sys/kernel/mm/transparent_hugepage ]; then
thp_path=/sys/kernel/mm/transparent_hugepage
elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
thp_path=/sys/kernel/mm/redhat_transparent_hugepage
else
return 0
fi
echo 'never' > ${thp_path}/enabled
echo 'never' > ${thp_path}/defrag
unset thp_path
;;
esac
Make it executable.
Run the following command to ensure that the init script can be used:
sudo chmod 755 /etc/init.d/disable-transparent-hugepages
Configure your operating system to run it on boot.
Use the appropriate command to configure the new init script on your Linux distribution.
| Distribution | Command |
|---|---|
| Ubuntu and Debian | sudo update-rc.d disable-transparent-hugepages defaults
|
| SUSE | sudo insserv /etc/init.d/disable-transparent-hugepages
|
| Red Hat, CentOS, Amazon Linux, and derivatives | sudo chkconfig --add disable-transparent-hugepages
|
Override tuned and ktune, if applicable
If you are using tuned or ktune (for example, if you are running Red Hat or CentOS 6+) you must now configure them to preserve the above settings.
Using tuned and ktune
IMPORTANT
If using tuned or ktune, you must perform this step in addition to installing the init script.
tuned and ktune are dynamic kernel tuning tools available on Red Hat and CentOS that can disable transparent huge pages.
To disable transparent huge pages in tuned or ktune, you need to edit or create a new profile that sets THP to never.
Red Hat/CentOS 6
Create a new profile.
Create a new profile from an existing default profile by copying the relevant directory. In the example we use the default profile as the base and call our new profile no-thp.
sudo cp -r /etc/tune-profiles/default /etc/tune-profiles/no-thp
Edit ktune.sh.
Edit /etc/tune-profiles/no-thp/ktune.sh and add the following:
set_transparent_hugepages never
to the start() block of the file, before the return 0 statement.
Enable the new profile.
Finally, enable the new profile by issuing:
sudo tuned-adm profile no-thp
Red Hat/CentOS 7
Create a new profile.
Create a new tuned profile directory:
sudo mkdir /etc/tuned/no-thp
Edit tuned.conf.
Create and edit /etc/tuned/no-thp/tuned.conf so that it contains the following:
[main]
include=virtual-guest
[vm]
transparent_hugepages=never
Enable the new profile.
Finally, enable the new profile by issuing:
sudo tuned-adm profile no-thp
Test Your Changes
You can check the status of THP support by issuing the following commands:
cat /sys/kernel/mm/transparent_hugepage/enabled
cat /sys/kernel/mm/transparent_hugepage/defrag
On Red Hat Enterprise Linux, CentOS, and potentially other Red Hat-based derivatives, you may instead need to use the following:
cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
cat /sys/kernel/mm/redhat_transparent_hugepage/defrag
For both files, the correct output resembles:
always madvise [never]source - https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/
- Install MongoDB >
- Install MongoDB on Red Hat Enterprise, CentOS, or Fedora Linux
Install MongoDB on Red Hat Enterprise, CentOS, or Fedora Linux¶
Synopsis
This tutorial outlines the basic installation process for deploying MongoDB on Red Hat Enterprise Linux, CentOS Linux, Fedora Linux and related systems. This procedure uses .rpm packages as the basis of the installation. 10gen publishes packages of the MongoDB releases as .rpm packages for easy installation and management for users of CentOS, Fedora and Red Hat Enterprise Linux systems. While some of these distributions include their own MongoDB packages, the 10gen packages are generally more up to date.
This tutorial includes: an overview of the available packages, instructions for configuring the package manager, the process install packages from the 10gen repository, and preliminary MongoDB configuration and operation.
Package Options
The 10gen repository contains two packages:
mongo-10gen-server
This package contains the mongod and mongos daemons from the latest stable release and associated configuration and init scripts. Additionally, you can use this package to install daemons from a previous release of MongoDB.
mongo-10gen
This package contains all MongoDB tools from the latest stable release. Additionally, you can use this package to install tools from a previous release of MongoDB. Install this package on all production MongoDB hosts and optionally on other systems from which you may need to administer MongoDB systems.
Install MongoDB
Configure Package Management System (YUM)
Create a /etc/yum.repos.d/10gen.repo file to hold information about your repository. If you are running a 64-bit system (recommended,) place the following configuration in /etc/yum.repos.d/10gen.repo file:
If you are running a 32-bit system, which isn’t recommended for production deployments, place the following configuration in/etc/yum.repos.d/10gen.repo file:
Install Packages
Issue the following command (as root or with sudo) to install the latest stable version of MongoDB and the associated tools:
When this command completes, you have successfully installed MongoDB!
Manage Installed Versions
You can use the mongo-10gen and mongo-10gen-server packages to install previous releases of MongoDB. To install a specific release, append the version number, as in the following example:
This installs the mongo-10gen and mongo-10gen-server packages with the 2.2.3 release. You can specify any available version of MongoDB; however yum will upgrade the mongo-10gen and mongo-10gen-server packages when a newer version becomes available. Use the following pinning procedure to prevent unintended upgrades.
To pin a package, add the following line to your /etc/yum.conf file:
Configure MongoDB
These packages configure MongoDB using the /etc/mongod.conf file in conjunction with the control script. You can find the init script at/etc/rc.d/init.d/mongod.
This MongoDB instance will store its data files in the /var/lib/mongo and its log files in /var/log/mongo, and run using the mongod user account.
Note
If you change the user that runs the MongoDB process, you will need to modify the access control rights to the /var/lib/mongo and/var/log/mongo directories.
Control MongoDB
Warning
With the introduction of systemd in Fedora 15, the control scripts included in the packages available in the 10gen repository are not compatible with Fedora systems. A correction is forthcoming, see SERVER-7285 for more information, and in the mean time use your own control scripts or install using the procedure outlined in Install MongoDB on Linux.
Start MongoDB
Start the mongod process by issuing the following command (as root, or with sudo):
You can verify that the mongod process has started successfully by checking the contents of the log file at /var/log/mongo/mongod.log.
You may optionally, ensure that MongoDB will start following a system reboot, by issuing the following command (with root privileges:)
Restart MongoDB
You can restart the mongod process by issuing the following command (as root, or with sudo):
Follow the state of this process by watching the output in the /var/log/mongo/mongod.log file to watch for errors or important messages from the server.
Control mongos
As of the current release, there are no control scripts for mongos. mongos is only used in sharding deployments and typically do not run on the same systems where mongod runs. You can use the mongodb script referenced above to derive your own mongos control script.
SELinux Considerations
You must SELinux to allow MongoDB to start on Fedora systems. Administrators have two options:
- enable access to the relevant ports (e.g. 27017) for SELinux. See Interfaces and Port Numbers for more information on MongoDB’s default ports.
- disable SELinux entirely. This requires a system reboot and may have larger implications for your deployment.
Using MongoDB
Among the tools included in the mongo-10gen package, is the mongo shell. You can connect to your MongoDB instance by issuing the following command at the system prompt:
This will connect to the database running on the localhost interface by default. At the mongo prompt, issue the following two commands to insert a record in the “test” collection of the (default) “test” database and then retrieve that document.
See also
“mongo” and “mongo Shell Methods“
출처 - http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/
'DB > MongoDB' 카테고리의 다른 글
| mongodb - BSON 사이즈 제한 (0) | 2013.06.18 |
|---|---|
| mongodb - GridFS save/read file 예제 (1) | 2013.06.10 |
| mongodb - connection pool (0) | 2013.05.26 |
| mongodb - how to use (0) | 2013.05.21 |
| mongodb - mongod.conf(web interface enable) (0) | 2013.05.19 |
