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Apache CouchDB README.Unix
==========================
A high-level guide to Unix-like systems, inc. Mac OS X and Ubuntu.
Community installation guides are available on the wiki:
http://wiki.apache.org/couchdb/Installation
This document is the canonical source of installation information. However, many
systems have gotchas that you need to be aware of. In addition, dependencies
frequently change as distributions update their archives. If you're running into
trouble, be sure to check out the wiki. If you have any tips to share, please
also update the wiki so that others can benefit from your experience.
Troubleshooting
---------------
There is a troubleshooting guide:
http://wiki.apache.org/couchdb/Troubleshooting
There is a wiki for general documentation:
http://wiki.apache.org/couchdb/
There are collection of friendly mailing lists:
http://couchdb.apache.org/community/lists.html
Please work through these in order if you experience any problems.
Dependencies
------------
You should have the following installed:
* Erlang OTP (>=R13B04) (http://erlang.org/)
* ICU (http://icu.sourceforge.net/)
* OpenSSL (http://www.openssl.org/)
* Mozilla SpiderMonkey (1.7) (http://www.mozilla.org/js/spidermonkey/)
* GNU Make (http://www.gnu.org/software/make/)
* GNU Compiler Collection (http://gcc.gnu.org/)
* libcurl (http://curl.haxx.se/libcurl/)
* help2man (http://www.gnu.org/s/help2man/)
* Python (>= 2.7) for docs (http://python.org/)
* Python Sphinx (>=1.1.3) (http://pypi.python.org/pypi/Sphinx)
It is recommended that you install Erlang OTP R13B-4 or above where possible.
You will only need libcurl if you plan to run the JavaScript test suite. And
help2man is only need if you plan on installing the CouchDB man pages.
Python and Sphinx are only required for building the online documentation.
Debian-based Systems
~~~~~~~~~~~~~~~~~~~~
You can install the dependencies by running:
sudo apt-get install build-essential
sudo apt-get install erlang-base-hipe
sudo apt-get install erlang-dev
sudo apt-get install erlang-manpages
sudo apt-get install erlang-eunit
sudo apt-get install erlang-nox
sudo apt-get install libicu-dev
sudo apt-get install libmozjs-dev
sudo apt-get install libcurl4-openssl-dev
There are lots of Erlang packages. If there is a problem with your install, try
a different mix. There is more information on the wiki. Additionally, you might
want to install some of the optional Erlang tools which may also be useful.
Be sure to update the version numbers to match your system's available packages.
For up to date instructions, please see:
http://wiki.apache.org/couchdb/Installing_on_Debian
http://wiki.apache.org/couchdb/Installing_on_Ubuntu
Unfortunately, it seems that installing dependencies on Ubuntu is troublesome.
RedHat-based (Fedora, Centos, RHEL) Systems
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You can install the dependencies by running:
sudo yum groupinstall "Development Tools"
sudo yum install autoconf
sudo yum install autoconf-archive
sudo yum install automake
sudo yum install libtool
sudo yum install perl-Test-Harness
sudo yum install erlang-etap
sudo yum install erlang-erts
sudo yum install erlang-os_mon
sudo yum install libicu-devel
sudo yum install js-devel
sudo yum install curl-devel
While CouchDB builds against the default js-devel-1.7.0 included in some
distributions, it's recommended to use a more recent js-devel-1.8.5.
Mac OS X
~~~~~~~~
You can install the build tools by running:
open /Applications/Installers/Xcode\ Tools/XcodeTools.mpkg
You can install the other dependencies by running:
brew install autoconf
brew install autoconf-archive
brew install automake
brew install libtool
brew install erlang
brew install icu4c
brew install spidermonkey
brew install curl
You may want to link ICU so that CouchDB can find the header files automatically:
brew link icu4c
The same is true for recent versions of Erlang:
brew link erlang
You will need Homebrew installed to use the `brew` command.
Learn more about Homebrew at:
http://mxcl.github.com/homebrew/
Some versions of Mac OS X ship a problematic OpenSSL library. If you're
experiencing troubles with CouchDB crashing intermittently with a segmentation
fault or a bus error, you will need to install your own version of OpenSSL. See
the troubleshooting guide, mentioned above, for more information.
Installing
----------
Once you have satisfied the dependencies you should run:
./configure
This script will configure CouchDB to be installed into `/usr/local` by default.
If you wish to customise the installation, pass `--help` to this script.
If everything was successful you should see the following message:
You have configured Apache CouchDB, time to relax.
Relax.
To install CouchDB you should run:
make && sudo make install
You only need to use `sudo` if you're installing into a system directory.
Try `gmake` if `make` is giving you any problems.
If everything was successful you should see the following message:
You have installed Apache CouchDB, time to relax.
Relax.
First Run
---------
You can start the CouchDB server by running:
sudo -i -u couchdb couchdb
This uses the `sudo` command to run the `couchdb` command as the `couchdb` user.
When CouchDB starts it should eventually display the following message:
Apache CouchDB has started, time to relax.
Relax.
To check that everything has worked, point your web browser to:
http://127.0.0.1:5984/_utils/index.html
From here you should run the test suite in Firefox.
Security Considerations
-----------------------
You should create a special `couchdb` user for CouchDB.
On many Unix-like systems you can run:
adduser --system \
--home /usr/local/var/lib/couchdb \
--no-create-home \
--shell /bin/bash \
--group --gecos \
"CouchDB Administrator" couchdb
On Mac OS X you can use the Workgroup Manager to create users:
http://www.apple.com/support/downloads/serveradmintools1047.html
You must make sure that:
* The user has a working POSIX shell
* The user's home directory is `/usr/local/var/lib/couchdb`
You can test this by:
* Trying to log in as the `couchdb` user
* Running `pwd` and checking the present working directory
Change the ownership of the CouchDB directories by running:
chown -R couchdb:couchdb /usr/local/etc/couchdb
chown -R couchdb:couchdb /usr/local/var/lib/couchdb
chown -R couchdb:couchdb /usr/local/var/log/couchdb
chown -R couchdb:couchdb /usr/local/var/run/couchdb
Change the permission of the CouchDB directories by running:
chmod 0770 /usr/local/etc/couchdb
chmod 0770 /usr/local/var/lib/couchdb
chmod 0770 /usr/local/var/log/couchdb
chmod 0770 /usr/local/var/run/couchdb
Running as a Daemon
-------------------
SysV/BSD-style Systems
~~~~~~~~~~~~~~~~~~~~~~
You can use the `couchdb` init script to control the CouchDB daemon.
On SysV-style systems, the init script will be installed into:
/usr/local/etc/init.d
On BSD-style systems, the init script will be installed into:
/usr/local/etc/rc.d
We use the `[init.d|rc.d]` notation to refer to both of these directories.
You can control the CouchDB daemon by running:
/usr/local/etc/[init.d|rc.d]/couchdb [start|stop|restart|status]
If you wish to configure how the init script works, you can edit:
/usr/local/etc/default/couchdb
Comment out the `COUCHDB_USER` setting if you're running as a non-superuser.
To start the daemon on boot, copy the init script to:
/etc/[init.d|rc.d]
You should then configure your system to run the init script automatically.
You may be able to run:
sudo update-rc.d couchdb defaults
If this fails, consult your system documentation for more information.
A `logrotate` configuration is installed into:
/usr/local/etc/logrotate.d/couchdb
Consult your `logrotate` documentation for more information.
It is critical that the CouchDB logs are rotated so as not to fill your disk.
Mac OS X
~~~~~~~~
You can use the `launchctl` command to control the CouchDB daemon.
You can load the configuration by running:
sudo launchctl load \
/usr/local/Library/LaunchDaemons/org.apache.couchdb.plist
You can stop the CouchDB daemon by running:
sudo launchctl unload \
/usr/local/Library/LaunchDaemons/org.apache.couchdb.plist
You can start CouchDB by running:
sudo launchctl start org.apache.couchdb
You can restart CouchDB by running:
sudo launchctl stop org.apache.couchdb
You can edit the launchd configuration by running:
open /usr/local/Library/LaunchDaemons/org.apache.couchdb.plist
To start the daemon on boot, copy the configuration file to:
/Library/LaunchDaemons
Consult your system documentation for more information.
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