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Apache CouchDB README ===================== Apache CouchDB is beta software and still under heavy development. Please be aware that important areas such as the public API or internal database format may see backwards incompatible changes between versions. Building From Checkout ---------------------- You can skip this section if you are installing from a release tarball. Dependencies ~~~~~~~~~~~~ To build Apache CouchDB from checkout you need some of the following installed: * GNU Automake (>=1.6.3) (http://www.gnu.org/software/automake/) * GNU Autoconf (>=2.59) (http://www.gnu.org/software/autoconf/) * GNU Libtool (http://www.gnu.org/software/libtool/) * GNU help2man (http://www.gnu.org/software/help2man/) Debian-based (inc. Ubuntu) Systems ++++++++++++++++++++++++++++++++++ You can install the dependencies by running: apt-get install automake autoconf libtool help2man Mac OS X ++++++++ You can install the dependencies using MacPorts by running: port install automake autoconf libtool help2man Bootstrapping ~~~~~~~~~~~~~ Note: You must repeat this step every time you update your checkout. Bootstrap the pristine source by running: ./bootstrap Installation and First Run -------------------------- Unix-like Operating Systems (inc. Mac OS X) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dependencies ^^^^^^^^^^^^ To build and install Apache CouchDB you will need the following installed: * Erlang OTP (>=R12B5) (http://erlang.org/) * ICU (http://icu.sourceforge.net/) * OpenSSL (http://www.openssl.org/) * Mozilla SpiderMonkey (http://www.mozilla.org/js/spidermonkey/) * libcurl (http://curl.haxx.se/libcurl/) * GNU Make (http://www.gnu.org/software/make/) * GNU Compiler Collection (http://gcc.gnu.org/) It is recommended that you install Erlang OTP R12B-5 or above where possible. Debian-based (inc. Ubuntu) Systems ++++++++++++++++++++++++++++++++++ You can install the dependencies by running: apt-get install build-essential erlang libicu-dev libmozjs-dev libcurl4-openssl-dev If you get an error regarding the `libicu38` or `libicu-dev` be sure to check the version used by your distribution (using `apt-cache search libicu`) and install those packages instead. `libcurl4-openssl-dev` is the current version of `libcurl-dev` supplied by Ubuntu. You may need to specify an alternate package name for libcurl bindings. Mac OS X ++++++++ To install GNU Make and the GNU Compiler Collection on Mac OS X you should install the Xcode Tools metapackage by running: open /Applications/Installers/Xcode\ Tools/XcodeTools.mpkg You can install the dependencies using MacPorts by running: port install icu erlang spidermonkey curl Installing ^^^^^^^^^^ Once you have satisfied the dependencies you should run: ./configure Note: Apache CouchDB is installed into `/usr/local` by default. If you want to change where Apache CouchDB is installed (or where to find Erlang) be sure to read the output from running the `./configure --help` command. Note: All the examples assume you have installed into `/usr/local`. If everything was successful you should see the following message: You have configured Apache CouchDB, time to relax. Relax. To install Apache CouchDB you should then run the following command: make && sudo make install Note: The use of the `sudo` command is only required if you are installing into a system owned directory. You do not need to do this if you are installing elsewhere, such as your home directory. If you are having problems running `make` you may want to try running `gmake` if this is available on your system. More options can be found by reading the `INSTALL` file. Security Considerations ^^^^^^^^^^^^^^^^^^^^^^^ It is not advisable to run Apache CouchDB as the superuser. We strongly recommend that you create a specific user to run Apache CouchDB and own the data/log directories. You can use whatever tool your system provides to create a new `couchdb` user. 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 Mac OS X provides the standard Accounts option from the System Preferences application or you can optionally use the Workgroup Manager application which can be downloaded as part of the Server Admin Tools: http://www.apple.com/support/downloads/serveradmintools1047.html You should make sure that the `couchdb` user has a working POSIX shell and set the home directory to `/usr/local/var/lib/couchdb` which is the Apache CouchDB database directory. Change the ownership of the Apache 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 Apache CouchDB directories by running: chmod -R 0770 /usr/local/etc/couchdb chmod -R 0770 /usr/local/var/lib/couchdb chmod -R 0770 /usr/local/var/log/couchdb chmod -R 0770 /usr/local/var/run/couchdb Running Manually ^^^^^^^^^^^^^^^^ You can start the Apache CouchDB server by running: sudo -i -u couchdb couchdb -b This uses the `sudo` command to run the `couchdb` command as the `couchdb` user. When Apache 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. Troubleshooting ^^^^^^^^^^^^^^^ If you're getting a cryptic error message, visit the wiki: http://wiki.apache.org/couchdb/Error_messages For general troubleshooting, visit the wiki: http://wiki.apache.org/couchdb/Troubleshooting Running as a Daemon ^^^^^^^^^^^^^^^^^^^ Note: These instructions assume you have created the `couchdb` user. See the specific system information included below to learn how to reconfigure this. Note: If any of these methods report a failure you can run the `couchdb` command manually to see the error messages it is displaying. The `/usr/local/etc/logrotate.d/couchdb` file is provided as a logrotate configuration that you can use to rotate Apache CouchDB's logs. SysV/BSD-style Systems ++++++++++++++++++++++ Depending on your system the `couchdb` init script will be installed into a direcory called `init.d` (for SysV-style systems) or `rc.d` (for BSD-style systems). These examples use the `[init.d|rc.d]` notation to indicate this. You can control the Apache CouchDB daemon by running: /usr/local/etc/[init.d|rc.d]/couchdb [start|stop|restart|force-reload|status] If you wish to configure how the init script works, such as which user to run Apache CouchDB as, you must edit the `/usr/local/etc/default/couchdb` file as appropriate. If you are running the init script as a non-superuser you need to remove the line with the `COUCHDB_USER` setting. If you wish the Apache CouchDB daemon to run as a system service you need to copy the `/usr/local/etc/[init.d|rc.d]/couchdb` script into your system wide `/etc/[init.d|rc.d]` directory and update your system configuration. You may be able to configure your system using the following command: sudo update-rc.d couchdb defaults Consult your system documentation for more information. Mac OS X ++++++++ You can use the `launchctl` command to control the Apache CouchDB daemon. You can load the launchd configuration by running: sudo launchctl load /usr/local/Library/LaunchDaemons/org.apache.couchdb.plist You can stop the Apache CouchDB daemon by running: sudo launchctl unload /usr/local/Library/LaunchDaemons/org.apache.couchdb.plist You can start Apache CouchDB by running: sudo launchctl start org.apache.couchdb You can restart Apache CouchDB by running: sudo launchctl stop org.apache.couchdb You can change the launchd configuration by running: open /usr/local/Library/LaunchDaemons/org.apache.couchdb.plist If you want the Apache CouchDB daemon to run at startup, copy the `/usr/local/Library/LaunchDaemons/org.apache.couchdb.plist` file to your system `/Library/LaunchDaemons` directory. Windows ~~~~~~~ The Windows build process is very similar to the erlang build process; indeed, we re-use some of their shell-scripts. Therefore, it is recommended you build erlang itself from sources - this will ensure that you have all the tools and environment necessary to build couch itself. A binary build of erlang should work for those in a hurry (see below), but it isn't really supported. See the end of these notes or information on building erlang which is relevant to couch. Build Tools ----------- To build on Windows, you need the following tools: * cygwin - it isn't clear exactly which tools you need - select all 'development' tools. As mentioned above, if you can build erlang itself you have everything you need. * VS2008 * Erlang - a built source distro of erlang is preferred. A binary distribution of Erlang is OK, but you will also need a source distribution for the cc.sh/link.sh etc wrapper shell scripts used by erlang - couch reuses these scripts in its build process and the license isn't compatible enough for us to clone them. Other tools: * Fetch the 'curl' sources and build them as per the instructions. The cygwin curl binaries are built with a different compiler so are no good. * Download the ICU binaries built with VS2008. * Download and build the same version of spidermonkey the version of couch requires - at time of writing this is 1.8. Different versions will not work (ie, at time of writing, 1.8.1 does not work with couch). Build Environment ----------------- Setup your environment: For the sake of everything you find sacred: set CYGWIN=nontsec BEFORE starting any cygwin environments. Set this variable globally. Without it you can expect all kinds of permissions-related problems. Execute the VC .bat files to setup your environment such that cl.exe etc are on your path. Start a cygwin shell. Check your environment: * which link -> should point at the MS linker. * which cl -> should point at the MS compiler. If you are building from a source version of erlang: Executing "eval `./otp_build env_win32`" as per the Erlang build instructions, will have set everything up, including the CC, LD etc variables. Do this even if erlang is already built and you are just building couch. This will have set the variables ERL_TOP, CC, LD, AD and a number of others. Then, PATH must be adjusted such what 'which erl' lists the erl.exe you built rather than the 'erl' script in the erts/etc/win32/cygwin_tools directory - eg: $ export PATH=$ERL_TOP/release/win32/erts-5.7.2/bin:$PATH If you are building from a binary version of erlang: * set ERL_TOP to the top of the erlang directory Add to the PATH such that 'which erl' points at your erl.exe - eg: $ export PATH=$ERL_TOP/erts-5.6.5/bin You must also ensure the cc.sh etc scripts from the Erlang source tree is on your PATH. Use "which cc.sh" to ensure the path is set correctly. Then set more variables: $ export CC=cc.sh $ export LD=ld.sh $ export AR=ar.sh $ export RC=rc.sh Set COUCHDB_TOP to the source directory. And we should be ready to bootstrap and build. Building -------- We start by bootstrapping: $ cd $COUCHDB_TOP $ ./bootstrap You have bootstrapped Apache CouchDB, time to relax. Run `./configure' to configure the source before you install. $ Relax. Now we need to run a complicated configure command-line. $ ./configure \ --with-js-include=/cygdrive/c/path_to_seamonkey_include \ --with-js-lib=/cygdrive/c/path_to_seamonkey_lib \ --with-win32-icu-binaries=/cygdrive/c/path_to_icu_binaries_root \ --with-erlang=$ERL_TOP/release/win32/usr/include \ --with-win32-curl=/cygdrive/c/path/to/curl/root/directory \ --with-openssl-bin-dir=c:/openssl/bin \ --with-msvc-redist-dir=c:/dir/with/vcredist_platform_executable \ --prefix=$ERL_TOP/release/win32 Relax, then relax some more, then get a beer and relax some more; the above command may take many many minutes to complete... Note that all paths must be in cygwin format. Those starting with $ERL_TOP can be entered literally, assuming ERL_TOP is set as described above. Notes: When building the installer, the necessary openssl binaries are pulled from the directory pointed to --with-openssl-bin-dir. Now we can build it and "install" it into the $ERL_TOP/release/win32 (or wherever you set --prefix to above) directory: $ make install Relax on your new couch: The $ERL_TOP/release/win32 directory is now ready to .zip up, be packaged by an installer, etc. To test it in-place, execute: $ $ERL_TOP/release/win32/bin/couchdb.bat and everything should work fine. To create an installer, execute: $ make dist and look for etc/windows/setup-couch*.exe. Note - only do this after a clean build, not after testing in-place - otherwise your test database and log files will be shipped! Additional Notes: Building erlang: * Follow the instructions as described. You do need openssl, but don't need the GUI tools. You may like to execute: echo "skipping gs" > lib/gs/SKIP echo "skipping ic" > lib/ic/SKIP To skip them. * Ensure 'which link' points at the ms linker; one in /usr/bin may be found instead. * After executing './otp_build release -a', be sure to execute Install.exe in the release/win32 directory to setup the release/win32/bin dir correctly. Testing with Erlang ^^^^^^^^^^^^^^^^^^^ First, we need to get a copy of etap to run the tests. $ git clone git://github.com/ngerakines/etap.git $ cd etap $ make && sudo make install Now we should be able to run the etap test suite: $ cd /path/to/couchdb/ $ make check ... prove test/etap/*.t test/etap/001-load........................ok test/etap/010-file-basics.................ok ... All tests successful. Files=28, Tests=363, 41 wallclock secs (...) Tests are also available to be run individually like such: $ ./test/etap/001-load.t # Current time local 2009-09-26 23:47:44 # Using etap version "0.3.4" 1..39 ok 1 - Loaded: couch_btree ... Cryptographic Software Notice ----------------------------- This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See <http://www.wassenaar.org/> for more information. The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this Apache Software Foundation distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code. The following provides more details on the included cryptographic software: CouchDB includes a HTTP client (ibrowse) with SSL functionality.