Class: WatchmonkeyCli::Checkers::UnixMdadm

Inherits:
WatchmonkeyCli::Checker show all
Defined in:
lib/watchmonkey_cli/checkers/unix_mdadm.rb

Instance Attribute Summary

Attributes inherited from WatchmonkeyCli::Checker

#app

Instance Method Summary collapse

Methods inherited from WatchmonkeyCli::Checker

#_tolog, checker_name, checker_name=, #debug, descendants, #error, #info, inherited, #init, #initialize, #local, #rsafe, #safe, #spawn_sub, #start, #stop

Constructor Details

This class inherits a constructor from WatchmonkeyCli::Checker

Instance Method Details

#_parse_response(res) ⇒ Object 



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# File 'lib/watchmonkey_cli/checkers/unix_mdadm.rb', line 34

def _parse_response res
  return false if res.downcase["no such file"]

  { devices: [] }.tap do |r|
    res = res.strip
    chunks = res.split("\n").map(&:strip)
    chunks.reject!{|el| el =~ /\Awarning:/i }

    # personalities
    personalities = chunks.delete_at(chunks.index{|c| c =~ /^personalities/i })
    r[:personalities] = personalities.match(/^personalities(?:\s?): (.*)$/i)[1].split(" ").map{|s| s[1..-2] }

    # unusued devices
    unused_devices = chunks.delete_at(chunks.index{|c| c =~ /^unused devices/i })
    r[:unused_devices] = unused_devices.match(/^unused devices\s?: (.*)$/i)[1]

    # device output
    chunks.join("\n").split("\n\n").map{|sp| sp.split("\n") }.each do |rdev|
      r[:devices] << rdev
    end
  end
rescue StandardError => e
  return "failed to parse mdadm output - #{e.class}: #{e.message}"
end

#check!(result, host, opts = {}) ⇒ Object 



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# File 'lib/watchmonkey_cli/checkers/unix_mdadm.rb', line 13

def check! result, host, opts = {}
  result.command = "cat /proc/mdstat"
  result.result = host.exec(result.command)
  result.data = _parse_response(result.result)

  if !result.data
    result.error!(result.result)
  else
    result.data[:devices].each do |rdev|
      dev = rdev[0].split(" ").first
      status = rdev[1].split(" ").last
      progress = rdev[2].to_s
      return if status == "chunks"
      result.error! "#{dev} seems broken (expected U+, got `#{status}')" if status !~ /\[U+\]/
      if opts[:log_checking] && progress && m = progress.match(/\[[=>\.]+\]\s+([^\s]+)\s+=\s+([^\s]+)\s+\(([^\/]+)\/([^\)]+)\)\s+finish=([^\s]+)\s+speed=([^\s]+)/i)
        info "#{dev} on is checking (status:#{m[1]}|done:#{m[2]}|eta:#{m[5]}|speed:#{m[6]}|blocks_done:#{m[3]}/#{m[4]})"
      end
    end
  end
end

#enqueue(host, opts = {}) ⇒ Object 



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# File 'lib/watchmonkey_cli/checkers/unix_mdadm.rb', line 6

def enqueue host, opts = {}
  opts = { log_checking: true }.merge(opts)
  host = app.fetch_connection(:loopback, :local) if !host || host == :local
  host = app.fetch_connection(:ssh, host) if host.is_a?(Symbol)
  app.enqueue(self, host, opts)
end