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add load balance http endpoints to shut box down

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This commit is contained in:
Henry Oswald 2018-06-28 16:04:34 +01:00
parent c33c9f8fc7
commit 2384eb83d9
2 changed files with 30 additions and 11 deletions
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32
services/clsi/app.coffee
View file

@ -174,7 +174,11 @@ os = require "os"
STATE = "up"
server = net.createServer (socket) ->
process.on "SIGHUP", ->
console.log "got SIGHUP event"
STATE = "down"
loadTcpServer = net.createServer (socket) ->
socket.on "error", (err)->
if err.code == "ECONNRESET"
# this always comes up, we don't know why
@ -182,7 +186,7 @@ server = net.createServer (socket) ->
logger.err err:err, "error with socket on load check"
socket.destroy()
if STATE == "up" and Settings.load_balancer_agent.report_load
if STATE == "up" and Settings.internal.load_balancer_agent.report_load
currentLoad = os.loadavg()[0]
# staging clis's have 1 cpu core only
@ -201,26 +205,38 @@ server = net.createServer (socket) ->
socket.write("#{STATE}\n", "ASCII")
socket.end()
loadHttpServer = express()
loadHttpServer.post "/state/up", (req, res, next) ->
STATE = "up"
logger.info "getting message to set server to down"
res.sendStatus 204
loadHttpServer.post "/state/down", (req, res, next) ->
STATE = "down"
logger.info "getting message to set server to down"
res.sendStatus 204
port = (Settings.internal?.clsi?.port or 3013)
host = (Settings.internal?.clsi?.host or "localhost")
load_port = Settings.internal.clsi.load_port or 3048
load_tcp_port = Settings.internal.load_balancer_agent.load_port
load_http_port = Settings.internal.load_balancer_agent.local_port
if !module.parent # Called directly
app.listen port, host, (error) ->
logger.info "CLSI starting up, listening on #{host}:#{port}"
server.listen load_port, host, (error) ->
loadTcpServer.listen load_tcp_port, host, (error) ->
throw error if error?
logger.info "Load agent listening on load port #{load_port}"
logger.info "Load tcp agent listening on load port #{load_tcp_port}"
loadHttpServer.listen load_http_port, host, (error) ->
throw error if error?
logger.info "Load http agent listening on load port #{load_http_port}"
module.exports = app
setInterval () ->
ProjectPersistenceManager.clearExpiredProjects()
, tenMinutes = 10 * 60 * 1000

7
services/clsi/config/settings.defaults.coffee
View file

@ -21,6 +21,10 @@ module.exports =
port: 3013
host: process.env["LISTEN_ADDRESS"] or "localhost"
load_balancer_agent:
report_load:true
load_port: 3048
local_port: 3049
apis:
clsi:
url: "http://#{process.env['CLSI_HOST'] or 'localhost'}:3013"
@ -29,6 +33,7 @@ module.exports =
project_cache_length_ms: 1000 * 60 * 60 * 24
parallelFileDownloads:1
if process.env["DOCKER_RUNNER"]
module.exports.clsi =
dockerRunner: process.env["DOCKER_RUNNER"] == "true"
@ -52,5 +57,3 @@ if process.env["DOCKER_RUNNER"]
module.exports.path.sandboxedCompilesHostDir = process.env["COMPILES_HOST_DIR"]
module.exports.path.synctexBinHostPath = process.env["SYNCTEX_BIN_HOST_PATH"]
console.log "configggggg"
console.log module.exports