Class: Repctl::Client

Inherits:
Mysql2::Client
  • Object
show all
Includes:
Servers
Defined in:
lib/repctl/mysql_admin.rb

Constant Summary collapse

@@clients = 
{}

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Servers

#all_instances, #all_live_instances, #all_live_servers, #all_servers, #get_mysqld_pid, #instance_for, #live?, #mysqld_running?, #server_for_instance

Constructor Details

#initialize(instance, opts) ⇒ Client

Returns a new instance of Client.



12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/repctl/mysql_admin.rb', line 12

def initialize(instance, opts)
  @instance = instance
  server = server_for_instance(@instance)
  options = {
    :host => server['hostname'],
    :username => "root",
    :port => server['port'],
    :password => Config::ROOT_PASSWORD
  }
  options.delete(:password) if opts[:no_password]
  @client = Mysql2::Client.new(options)
  super(@client)
end

Class Method Details

.open(instance, opts = {}) ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/repctl/mysql_admin.rb', line 26

def self.open(instance, opts = {})
  timeout = opts[:timeout] || 10
  opts.delete(:timeout)
  begin
    instance = Integer(instance)
  rescue Mysql2::Error => e 
    puts "Instance value <#{instance}> is invalid."
  else
    timeout = Integer(timeout)
    while timeout >= 0
      begin
        @@clients[instance] ||= Client.new(instance, opts)
        break
      rescue Mysql2::Error => e
        puts "#{e.message}, retrying connection to instance #{instance}..."
        # puts e.backtrace
        sleep 1
        timeout -= 1
      end
    end    
  end
  @@clients[instance]
end

Instance Method Details

#close ⇒ Object 



50
51
52
53
 
# File 'lib/repctl/mysql_admin.rb', line 50

def close
  @@clients[@instance] = nil
  @client.close
end

#reset ⇒ Object 



55
56
57
58
59
 
# File 'lib/repctl/mysql_admin.rb', line 55

def reset
  @client.close
  @@clients[@instance] = nil
  Client.open(@instance)
end