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The second of two new features to replace the _externals protocols. This
allows users to configure CouchDB to proxy requests to an external HTTP
server. The external HTTP server is not required to be on the same host
running CouchDB.
The configuration looks like such:
[httpd_global_handlers]
_google = {couch_httpd_proxy, handle_proxy_req, <<"http://www.google.com">>}
You can then hit this proxy at the url:
http://127.0.0.1:5984/_google
If you add any path after the proxy name, or make a request with a query
string, those will be appended to the URL specified in the configuration.
Ie:
http://127.0.0.1:5984/_google/search?q=plankton
would translate to:
http://www.google.com/search?q=plankton
Obviously, request bodies are handled as expected.
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@1031877 13f79535-47bb-0310-9956-ffa450edef68
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This is a simple feature that allows useres to configure CouchDB
so that it maintains a given OS level process alive. If the process
dies for any reason, CouchDB will restart it. If the process restarts
too often, then CouchDB will mark it has halted and not attempt
to restart it. The default max restart rate is three times in the
last five seconds. These parameters are adjustable.
Commands that are started in this manner will have access to a simple
API over stdio to request configuration parameters or to add log
statements to CouchDB's logs.
To configure an OS process as a CouchDB os_daemon, create a section
in your local.ini like such:
[os_daemons]
daemon_name = /path/to/command -with args
This will make CouchDB bring up the command and attempt to keep it
alive. To request a configuration parameter, an os_daemon can write
a simple JSON message to stdout like such:
["get", "os_daemons"]\n
which would return:
{"daemon_name": "/path/to/command -with args"}
Or:
["get", "os_daemons", "daemon_name"]\n
which would return:
"/path/to/command -with args"
There's no restriction on what configuration variables are visible.
There's also no method for altering the configuration.
If you would like your OS daemon to be restarted in the event that
the configuration changes, you can send the following messages:
["register", $(SECTION)]\n
When anyting in that section changes, your OS process will be
rebooted so it can pick up the new configuration settings. If you
want to listen for changes on a specific key, you can send something
like:
["register", $(SECTION), $(KEY)]\n
In this case, CouchDB will only restart your daemon if that exact
section/key pair changes, instead of anything in that entire section.
Logging commands look like:
["log", $(JSON_MESSAGE)]\n
Where $(JSON_MESSAGE) is arbitrary JSON data. These messages are
logged at the 'info' level. If you want to log at a different level
you can pass messages like such:
["log", $(JSON_MESSAGE), {"level": $(LEVEL)}]\n
Where $(LEVEL) is one of "debug", "info", or "error".
When implementing a daemon process to be managed by CouchDB you
should remember to use a method like checking the parent process
id or if stdin has been closed. These flags can tell you if
your daemon process has been orphaned so you can exit cleanly.
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@1031875 13f79535-47bb-0310-9956-ffa450edef68
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git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@919469 13f79535-47bb-0310-9956-ffa450edef68
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git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@917608 13f79535-47bb-0310-9956-ffa450edef68
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If a database is restored to a previous version, and the view files
are not updated appropriately they will contain data from the database
after the reverted-to-update_seq. This patch checks that the update
sequence recorded in a view is less than or equal to the update
sequence of the database.
Patch is by Filipe Manana. Execellent work once again.
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@911544 13f79535-47bb-0310-9956-ffa450edef68
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git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@899306 13f79535-47bb-0310-9956-ffa450edef68
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In particular, the cURL bindings have been rewritten to be more useful
and easily applied in command line scripts.
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@884672 13f79535-47bb-0310-9956-ffa450edef68
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git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@833956 13f79535-47bb-0310-9956-ffa450edef68
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Quite a few changes to the build system to handle VPATH builds appropriately as well as make the test suite know about them.
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@833951 13f79535-47bb-0310-9956-ffa450edef68
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