Class: Chimp::ChimpDaemonClient

Inherits:
Object
  • Object
show all
Defined in:
lib/right_chimp/daemon/chimp_daemon_client.rb

Overview

The ChimpDaemonClient contains the code for communicating with the RESTful chimpd Web service

Class Method Summary collapse

Class Method Details

.create_group(host, port, name, type, concurrency) ⇒ Object 



99
100
101
102
103
104
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 99

def self.create_group(host, port, name, type, concurrency)
  uri = "http://#{host}:#{port}/group/#{name}/create"
  payload = { 'type' => type, 'concurrency' => concurrency }.to_yaml
  response = RestClient.post(uri, payload)
  return YAML::load(response.body)
end

.quit(host, port) ⇒ Object

quit a remote chimpd



71
72
73
74
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 71

def self.quit(host, port)
  response = RestClient.post "http://#{host}:#{port}/admin", { 'shutdown' => 'true' }.to_yaml
  return response.code
end

.retrieve_group_info(host, port, group_name, status) ⇒ Object 



86
87
88
89
90
91
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 86

def self.retrieve_group_info(host, port, group_name, status)
  uri = "http://#{host}:#{port}/group/#{group_name}/#{status}"
  response = RestClient.get uri
  group = YAML::load(response.body)
  return group
end

.retrieve_job_info(host, port) ⇒ Object

retrieve job info from a remote chimpd



79
80
81
82
83
84
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 79

def self.retrieve_job_info(host, port)
  uri = "http://#{host}:#{port}/job/0"
  response = RestClient.get uri
  jobs = YAML::load(response.body)
  return jobs
end

.retry_group(host, port, group_name) ⇒ Object 



106
107
108
109
110
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 106

def self.retry_group(host, port, group_name)
  uri = "http://#{host}:#{port}/group/#{group_name}/retry"
  response = RestClient.post(uri, {})
  return YAML::load(response.body)
end

.set_job_status(host, port, job_id, status) ⇒ Object 



93
94
95
96
97
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 93

def self.set_job_status(host, port, job_id, status)
  uri = "http://#{host}:#{port}/job/#{job_id}/update"
  response = RestClient.post uri, { :status => status}
  return YAML::load(response.body)
end

.submit(host, port, chimp_object, job_uuid) ⇒ Object

Submit a Chimp object to a remote chimpd



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/right_chimp/daemon/chimp_daemon_client.rb', line 10

def self.submit(host, port, chimp_object, job_uuid)
  uri = "http://#{host}:#{port}/job/process"
  attempts = 3

  begin
    # We are sending to the chimp host+port the actual chimp_object.
    Log.debug "Sending job to chimpd webserver"
    response = RestClient.post uri, chimp_object.to_yaml


    if response.code > 199 and response.code < 300
      Log.debug "Response code was #{response.code}"

      id = YAML::load(response.body)['id']
      #ID changes upon execution, not upon submission.
      job_uuid = YAML::load(response.body)['job_uuid']
      puts '[' + job_uuid + ']'
      return true
    else
      $stderr.puts '[' + job_uuid + "] WARNING: error submitting to chimpd! response code: #{response.code}"
      return false
    end

  rescue RestClient::RequestTimeout => ex
    $stderr.puts "["+job_uuid+"] WARNING: Request timeout talking to chimpd for job #{chimp_object.script}: #{ex.message} (#{ex.http_code})"
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue RestClient::InternalServerError => ex

    $stderr.puts "["+job_uuid+"] WARNING: Error submitting job to chimpd: #{ex.message}, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::ECONNRESET => ex
    $stderr.puts "["+job_uuid+"] WARNING: Connection reset by peer, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::EPIPE => ex
    $stderr.puts "["+job_uuid+"] WARNING: broken pipe, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::ECONNREFUSED => ex
    $stderr.puts "["+job_uuid+"] ERROR: connection refused, aborting"
    return false

  rescue RestClient::Exception => ex
    $stderr.puts "["+job_uuid+"] ERROR: Error submitting job to chimpd #{chimp_object.script}: #{ex.message}"
    return false
  end
end