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arangodb/js/apps/system/_admin/aardvark/APP/cluster.js

397 lines
11 KiB
JavaScript

/*global applicationContext*/
////////////////////////////////////////////////////////////////////////////////
/// @brief A Foxx.Controller to show all Foxx Applications
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2013 triagens GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Michael Hackstein
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
(function() {
"use strict";
// Initialise a new FoxxController called controller under the urlPrefix: "cluster".
var FoxxController = require("org/arangodb/foxx").Controller,
controller = new FoxxController(applicationContext),
cluster = require("org/arangodb/cluster"),
load = require("internal").download,
_ = require("underscore");
/** Plan and start a new cluster
*
* This will plan a new cluster with the information
* given in the body
*/
controller.get("/amICoordinator", function(req, res) {
res.json(cluster.isCoordinator());
});
controller.get("/amIDispatcher", function(req, res) {
res.json(!cluster.dispatcherDisabled());
});
if (!cluster.dispatcherDisabled()) {
var Plans = require("./repositories/plans.js"),
plans = new Plans.Repository(
require("internal").db._collection(
"_cluster_kickstarter_plans"
)),
getStarter = function() {
var config = plans.loadConfig(),
k;
if (!config) {
return;
}
k = new cluster.Kickstarter(config.plan);
k.runInfo = config.runInfo;
return k;
},
parseUser = function(header) {
if (header && header.authorization) {
var auth = require("internal").base64Decode(
header.authorization.substr(6)
);
return {
username: auth.substr(0, auth.indexOf(":")),
passwd: auth.substr(auth.indexOf(":")+1) || ""
};
}
return {
username: "root",
passwd: ""
};
},
startUp = function(req, res) {
cleanUp();
var config = {},
input = req.body(),
result = {},
starter,
i,
tmp,
planner,
auth,
uname,
pwd;
auth = parseUser(req.headers);
uname = auth.username;
pwd = auth.passwd;
if (input.type === "testSetup") {
config.dispatchers = {
"d1": {
"username": uname,
"passwd": pwd,
"endpoint": "tcp://" + input.dispatchers
}
};
config.numberOfDBservers = input.numberDBServers;
config.numberOfCoordinators = input.numberCoordinators;
} else {
i = 0;
config.dispatchers = {};
config.numberOfDBservers = 0;
config.numberOfCoordinators = 0;
_.each(input.dispatchers, function(d) {
i++;
var inf = {};
inf.username = d.username;
inf.passwd = d.passwd;
inf.endpoint = "tcp://" + d.host;
if (d.isCoordinator) {
config.numberOfCoordinators++;
} else {
inf.allowCoordinators = false;
}
if (d.isDBServer) {
config.numberOfDBservers++;
} else {
inf.allowDBservers = false;
}
config.dispatchers["d" + i] = inf;
});
config.useSSLonDBservers = input.useSSLonDBservers;
config.useSSLonCoordinators = input.useSSLonCoordinators;
}
result.config = config;
planner = new cluster.Planner(config);
result.plan = planner.getPlan();
starter = new cluster.Kickstarter(planner.getPlan());
tmp = starter.launch();
result.runInfo = tmp.runInfo;
result.user = {
name: "root",
passwd: ""
};
plans.storeConfig(result);
res.json(result);
},
cleanUp = function() {
var k = getStarter();
if (k) {
k.cleanup();
}
};
// only make these functions available in dispatcher mode!
controller.post("/plan", startUp);
controller.put("/plan", startUp);
controller.put("/plan/credentials", function(req, res) {
var body = req.body(),
u = body.user,
p = body.passwd;
plans.saveCredentials(u, p);
});
controller.get("/plan", function(req, res) {
res.json(plans.loadConfig());
});
controller.del("/plan/cleanUp", function(req, res) {
cleanUp();
res.json("ok");
});
controller.post("/communicationCheck", function(req, res) {
var list = req.body();
var options = {};
var result = [];
var base64Encode = require("internal").base64Encode;
_.each(list, function(info) {
var host = info.host;
var port = info.port;
if (info.user) {
options.headers = {
"Authorization": "Basic " + base64Encode(info.user + ":" +
info.passwd)
};
}
var url = "http://" + host + ":" + port + "/_api/version";
var resi = load(url, "", options);
if (resi.code !== 200) {
result.push(false);
} else {
result.push(true);
}
delete options.headers;
});
res.json(result);
});
controller.del("/plan", function(req, res) {
plans.clear();
res.json("ok");
});
controller.get("/healthcheck", function(req, res) {
var out = getStarter().isHealthy();
var answer = true;
if (out.error) {
_.each(out.results, function(res) {
if (res.answering) {
answer = (_.any(res.answering, function(i) {
return i === true;
}));
}
});
}
res.json(answer);
});
controller.get("/shutdown", function(req, res) {
var k = getStarter();
var shutdownInfo = k.shutdown();
if (shutdownInfo.error) {
require("console").log("%s", JSON.stringify(shutdownInfo.results));
}
plans.removeRunInfo();
});
controller.get("/upgrade", function(req, res) {
//uname pswd
var k = getStarter();
var u = plans.getCredentials();
var r = k.upgrade(u.name, u.passwd);
if (r.error === true) {
res.json(r);
res.status = 500;
}
else {
plans.replaceRunInfo(r.runInfo);
res.json("ok");
}
});
controller.get("/cleanup", function(req, res) {
var k = getStarter();
var shutdownInfo = k.shutdown();
cleanUp();
if (shutdownInfo.error) {
require("console").log("%s", JSON.stringify(shutdownInfo.results));
return;
}
});
controller.get("/relaunch", function(req, res) {
var k = getStarter();
var u = plans.getCredentials();
var r = k.relaunch(u.name, u.passwd);
if (r.error) {
res.json("Unable to relaunch cluster");
res.status(409);
return;
}
var result = {
plan: r.plan,
runInfo: r.runInfo
};
result = plans.updateConfig(result);
res.json(result);
});
}
if (cluster.isCluster()) {
// only make these functions available in cluster mode!
var Communication = require("org/arangodb/cluster/agency-communication"),
comm = new Communication.Communication(),
beats = comm.sync.Heartbeats(),
diff = comm.diff.current,
servers = comm.current.DBServers(),
dbs = comm.current.Databases(),
coords = comm.current.Coordinators();
/** Get the type of the cluster
*
* Returns a string containing the cluster type
* Possible anwers:
* - testSetup
* - symmetricalSetup
* - asymmetricalSetup
*
*/
controller.get("/ClusterType", function(req, res) {
// Not yet implemented
res.json({
type: "symmetricSetup"
});
});
/** Get all DBServers
*
* Get a list of all running and expected DBServers
* within the cluster
*/
controller.get("/DBServers", function(req, res) {
var resList = [],
list = servers.getList(),
diffList = diff.DBServers(),
didBeat = beats.didBeat(),
serving = beats.getServing();
_.each(list, function(v, k) {
v.name = k;
resList.push(v);
if (!_.contains(didBeat, k)) {
v.status = "critical";
return;
}
if (v.role === "primary" && !_.contains(serving, k)) {
v.status = "warning";
return;
}
v.status = "ok";
});
_.each(diffList.missing, function(v) {
v.status = "missing";
resList.push(v);
});
res.json(resList);
});
controller.get("/Coordinators", function(req, res) {
var resList = [],
list = coords.getList(),
diffList = diff.Coordinators(),
didBeat = beats.didBeat();
_.each(list, function(v, k) {
v.name = k;
resList.push(v);
if (!_.contains(didBeat, k)) {
v.status = "critical";
return;
}
v.status = "ok";
});
_.each(diffList.missing, function(v) {
v.status = "missing";
resList.push(v);
});
res.json(resList);
});
controller.get("/Databases", function(req, res) {
var list = dbs.getList();
res.json(_.map(list, function(d) {
return {name: d};
}));
});
controller.get("/:dbname/Collections", function(req, res) {
var dbname = req.params("dbname"),
selected = dbs.select(dbname);
try {
res.json(_.map(selected.getCollections(),
function(c) {
return {name: c};
})
);
} catch(e) {
res.json([]);
}
});
controller.get("/:dbname/:colname/Shards", function(req, res) {
var dbname = req.params("dbname"),
colname = req.params("colname"),
selected = dbs.select(dbname).collection(colname);
res.json(selected.getShardsByServers());
});
controller.get("/:dbname/:colname/Shards/:servername", function(req, res) {
var dbname = req.params("dbname"),
colname = req.params("colname"),
servername = req.params("servername"),
selected = dbs.select(dbname).collection(colname);
res.json(_.map(selected.getShardsForServer(servername),
function(c) {
return {id: c};
})
);
});
} // end isCluster()
}());