Sha256: e201b8207bf5e4f50828d8aa2c3f99d697578710383095a6a179fd372fc48d9d
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Size: 1.83 KB
Versions: 7
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Stored size: 1.83 KB
Contents
module Kurchatov
class Monitor
class Task
include Kurchatov::Mixin::Event
attr_accessor :thread, :instance
attr_reader :count_errors, :last_error, :last_error_at
def initialize(plugin)
@plugin = plugin
@thread = Thread.new { @plugin.start }
@count_errors = 0
@last_error = nil
@last_error_at = nil
end
def name
@plugin.name
end
def config
@plugin.plugin_config
end
def died?
return false if @thread.alive?
# thread died, join and extract error
begin
@thread.join # call error
rescue => e
desc = "Plugin '#{@plugin.name}' died. #{e.class}: #{e}\n." +
"Trace: #{e.backtrace.join("\n")}"
@count_errors += 1
@last_error = desc
@last_error_at = Time.now
Log.error(desc)
unless @plugin.ignore_errors
event(:service => 'riemann client errors', :desc => desc, :state => 'critical')
end
end
@thread = Thread.new { @plugin.start }
true
end
end
attr_accessor :tasks
CHECK_ALIVE_TIMEOUT = 5
def initialize(stop = false)
@stop_on_error = stop
@tasks = Array.new
end
def <<(plugin)
Log.debug("Add new plugin: #{plugin.inspect}")
@tasks << Task.new(plugin)
end
def start
loop do
@tasks.each { |t| exit Config[:ERROR_PLUGIN_REQ] if t.died? && @stop_on_error }
Log.debug("Check alive plugins [#{@tasks.count}]")
sleep CHECK_ALIVE_TIMEOUT
end
end
def inspect
@tasks.map do |t|
{
"name" => t.name,
"config" => t.config,
"errors" => {"count" => t.count_errors, "last" => t.last_error, "time" => t.last_error_at}
}
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems