Class: LogStash::Inputs::Proc

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/inputs/proc.rb

Overview

Generate a repeating message.

This plugin is intented only as an example.

Instance Method Summary collapse

Instance Method Details

#readCpuInfo(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 376

def readCpuInfo(queue)
    #  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    cpuinfo = Hash.new
    file = Pathname.new("/proc/cpuinfo")
    lines = file.readlines
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      if ( line.length == 1 )
        event = LogStash::Event.new( 
              "cpuinfo"       => cpuinfo,
              "file"          => file.to_s,
              "host"          => @host, 
              "type"          => "cpuinfo" )
        decorate(event)
        queue << event
        cpuinfo = Hash.new
        next
      end
      m = line.strip.split(/\s+:\s+/)
      if ( m && m.length >= 2 )
        if ( "flags" == m[0] )
          cpuinfo[m[0]] = m[1].strip.split(/\s+/)
          next
        end
        if ( /(processor|cpu MHz|physical id|siblings|core id|cpu cores|apicid|initial apicid|cpuid level|bogomips|clflush size|cache size)/.match(m[0]) )
          cpuinfo[m[0]] = m[1].to_i
          next
        end
        if ( /(cpu MHz|bogomips)/.match(m[0]) )
          cpuinfo[m[0]] = m[1].to_f
          next
        end
        if ( /(cache size)/.match(m[0]) )
          cpuinfo[m[0]] = m[1].split(/\s+/)[0].to_i
          next
        end
        cpuinfo[m[0]] = m[1]
      end
    }
end

#readCrypto(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 416

def readCrypto(queue)
    #  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    #processor  : 0
    #vendor_id  : GenuineIntel
    #cpu family : 6
    #model    : 69
    #model name : Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz
    #stepping : 1
    #microcode  : 0x17
    #cpu MHz    : 799.996
    #cache size : 3072 KB
    #physical id  : 0
    #siblings : 4
    #core id    : 0
    #cpu cores  : 2
    #apicid   : 0
    #initial apicid : 0
    #fpu    : yes
    #fpu_exception  : yes
    #cpuid level  : 13
    #wp   : yes
    #flags    : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmo
    #n pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer 
    #aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
    #bogomips : 3391.99
    #clflush size : 64
    #cache_alignment  : 64
    #address sizes  : 39 bits physical, 48 bits virtual
    #power management:

    crypto = Hash.new
    file = Pathname.new("/proc/crypto")
    lines = file.readlines
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      if ( line.length == 1 )
        event = LogStash::Event.new( 
              "crypto"       => crypto,
              "file"          => file.to_s,
              "host"          => @host, 
              "type"          => "crypto" )
        decorate(event)
        queue << event
        next
      end
      m = line.strip.split(/[:\s]+/)
      if ( m && m.length >= 2 )
        crypto[m[0]] = m[1]
      end
    }
end

#readDiskStats(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 264

def readDiskStats(queue)
    # 1 - major number
    # 2 - minor mumber
    # 3 - device name
    # 4 - reads completed successfully
    # 5 - reads merged
    # 6 - sectors read
    # 7 - time spent reading (ms)
    # 8 - writes completed
    # 9 - writes merged
    #10 - sectors written
    #11 - time spent writing (ms)
    #12 - I/Os currently in progress
    #13 - time spent doing I/Os (ms)
    #14 - weighted time spent doing I/Os (ms)
    file = Pathname.new("/proc/diskstats")
    lines = file.readlines
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      m = line.split(/\s+/)
      if (m && m.length >= 13 )
      event = LogStash::Event.new("raw"=>line, 
              "major"             => m[1].to_i, 
              "minor"             => m[2].to_i,
              "dev"               => m[3],
              "readsCompleted"    => m[4].to_i,
              "readsMerged"       => m[5].to_i,
              "sectorsRead"       => m[6].to_i,
              "readsTimeSpentMS"  => m[7].to_i,
              "writesCompleted"   => m[8].to_i,
              "writesMerged"      => m[9].to_i,
              "sectorsWritten"    => m[10].to_i,
              "writesTimeSpentMS" => m[11].to_i,
              "iosInProgress"     => m[12].to_i,
              "ioTimeSpentMS"     => m[13].to_i,
              "ioWeightedTimeSpentMS" => m[14].to_i,
              "file"              => file.to_s,
              "host"              => @host, 
              "type"              => "diskstats" )
              decorate(event)
              queue << event
      end
  }

end

#readLoadAverage(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 61

def readLoadAverage(queue)
  file = Pathname.new("/proc/loadavg")
  lines = file.readlines
  loadavg = {}
  lines.each { |line|
      m = /([\d\.]+)\s+([\d\.]+)\s+([\d\.])+\s+(\d+)\/(\d+)\s+(\d+)/.match(line)
      if (m && m.length >=6 )
        loadavg["1minute"] =  m[1].to_i
        loadavg["10minute"] = m[2].to_i
        loadavg["15minute"] = m[3].to_i
        loadavg["runnable"] = m[4].to_i
        loadavg["existing"] = m[5].to_i
        loadavg["lastcreatedpid"] = m[6].to_i
        event = LogStash::Event.new( "loadavg" => loadavg,   "file" => file.to_s,"host" => @host, "type" => "loadavg" )
        decorate(event)
        queue << event
      end
      
  }
end

#readMemInfo(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 82

def readMemInfo(queue)
  file = Pathname.new("/proc/meminfo")
  lines = file.readlines
  meminfo={}
  lines.each { |line|
      m = /(\w+):\s+(\d+)/.match(line)
      if (m && m.length >=3 )
        meminfo[m[1]] = m[2].to_i
      #else
      #       puts("#"+m.to_s)
      end
  }
  meminfo["CalcMemUsed"]=meminfo["MemTotal"]-meminfo["MemFree"]
  event = LogStash::Event.new("meminfo"=>meminfo, "file" => file.to_s,"host" => @host, "type" => "meminfo" )
              decorate(event)
              queue << event
      
end

#readMounts(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 309

def readMounts(queue)
    #The 1st column specifies the device that is mounted.
    #The 2nd column reveals the mount point.
    #The 3rd column tells the file-system type.
    #The 4th column tells you if it is mounted read-only (ro) or read-write (rw).
    #The 5th and 6th columns are dummy values
    file = Pathname.new("/proc/mounts")
    lines = file.readlines
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      m = line.split(/\s+/)
      if (m && m.length >= 6 )
      event = LogStash::Event.new("raw"=>line, 
              "device"            => m[0], 
              "mountpoint"        => m[1],
              "fsType"            => m[2],
              "flagsRaw"          => m[3],
              "flags"             => m[3].split(/\,/),
              "dummy1"            => m[4],
              "dummy2"            => m[5],
              "file"              => file.to_s,
              "host"              => @host, 
              "type"              => "mounts" )
              decorate(event)
              queue << event
      end
  }

end

#readNetDev(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 338

def readNetDev(queue)
    #  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed

    file = Pathname.new("/proc/net/dev")
    lines = file.readlines
    junk = lines.shift
    junk = lines.shift
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      m = line.strip.split(/[:\s]+/)
      if (m && m.length >= 17 )
      event = LogStash::Event.new("raw"=>line, 
              "iface"         => m[0], 
              "rxbytes"       => m[1].to_i,
              "rxpackets"     => m[2].to_i,
              "rxerrors"      => m[3].to_i,
              "rxdrops"       => m[4].to_i,
              "rxfifo"        => m[5].to_i,
              "rxframe"       => m[6].to_i,
              "rxcompressed"  => m[7].to_i,
              "rxmulticast"   => m[8].to_i,
              "txbytes"       => m[9].to_i,
              "txpackets"     => m[10].to_i,
              "txerrors"      => m[11].to_i,
              "txdrops"       => m[12].to_i,
              "txfifo"        => m[13].to_i,
              "txframe"       => m[14].to_i,
              "txcompressed"  => m[15].to_i,
              "txmulticast"   => m[16].to_i,
              "file"          => file.to_s,
              "host"          => @host, 
              "type"          => "netdev" )
              decorate(event)
              queue << event
      end
  }

end

#readPidStats(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 101

def readPidStats(queue)
  @logger.info? && @logger.info("in " + $0)
  fuid = -1
  
  if @pidstats.has_key?("user")
    fuid = Etc.getpwnam(@pidstats["user"]).uid
    @logger.info? && @logger.info("Filtering userid =" + @pidstats["user"] )
  end
  #Loosely based on the GEM ProcTable  which was  based on the Perl Module ProcTable
     Dir.foreach("/proc"){ |file|
        next if file =~ /\D/ # Skip non-numeric directories
        if fuid >= 0
          fileUid = File.stat("/proc/"+file).uid
          next if fileUid != fuid
        end
        process = Hash.new
        # Get /proc/<pid>/cmdline information. Strip out embedded nulls.
        begin
          data = IO.read("/proc/#{file}/cmdline").tr("\000", ' ').strip
          process["cmdline"] = data 
        rescue
          # Ignore and move on.
        end
        # Get /proc/<pid>/cwd information
        process["cwd"] = File.readlink("/proc/#{file}/cwd") rescue 

        # Get /proc/<pid>/environ information. Environment information
        # is represented as a Hash, with the environment variable as the
        # key and its value as the hash value.


        begin
          process["environ"] = Hash.new
          IO.read("/proc/#{file}/environ").split("\0").each{ |str|
            key, value = str.split('=')
            process["environ"][key] = value
          }
        rescue Errno::EACCES, Errno::ESRCH, Errno::ENOENT
          # Ignore and move on.
        end

        # Get /proc/<pid>/exe information
        process["exe"] = File.readlink("/proc/#{file}/exe") rescue 

        # Get /proc/<pid>/fd information. File descriptor information
        # is represented as a Hash, with the fd as the key, and its
        # symlink as the value.
        process["fd"] = Hash.new

        begin
          Dir.foreach("/proc/#{file}/fd/") { |fd|
            process["fd"][fd] = File.readlink("/proc/#{file}/fd/"+fd)  rescue process["fd"] = []
          }
        rescue 
          #  # Ignore and move on
        end

        # Get /proc/<pid>/root information
        process["root"] = File.readlink("/proc/#{file}/root") rescue 

        # Get number of LWP, one directory for each in /proc/<pid>/task/
        # Every process has at least one thread, so if we fail to read the task directory, set nlwp to 1.
        process["nlwp"] = Dir.glob("/proc/#{file}/task/*").length rescue process["nlwp"] = 1 
        
        # cat /proc/3828/io
        #          rchar: 323934931
        #          wchar: 323929600
        #          syscr: 632687
        #          syscw: 632675
        #          read_bytes: 0
        #          write_bytes: 323932160
        #          cancelled_write_bytes: 0
        begin
          process["io"] = Hash.new

          IO.foreach("/proc/#{file}/io") do |line|
              key, value = line.split(/[:\s]+/)
              process["io"][key] = value.to_i
          end
          rescue 
          # Ignore and move on.
        end

        # Get /proc/<pid>/stat information
      begin
        stat = IO.read("/proc/#{file}/stat") 
        # Deal with spaces in comm name. Courtesy of Ara Howard.
        re = %r/\([^\)]+\)/
        comm = stat[re]
        comm.tr!(' ', '-')
        stat[re] = comm

        stat = stat.split
        process["pid"]         = stat[0].to_i
        process["comm"]        = stat[1].tr('()','') # Remove parens
        process["state"]       = stat[2]
        process["ppid"]        = stat[3].to_i
        process["pgrp"]        = stat[4].to_i
        process["session"]     = stat[5].to_i
        process["tty_nr"]      = stat[6].to_i
        process["tpgid"]       = stat[7].to_i
        process["flags"]       = stat[8].to_i
        process["minflt"]      = stat[9].to_i
        process["cminflt"]     = stat[10].to_i
        process["majflt"]      = stat[11].to_i
        process["cmajflt"]     = stat[12].to_i
        process["utime"]       = stat[13].to_i
        process["stime"]       = stat[14].to_i
        process["cutime"]      = stat[15].to_i
        process["cstime"]      = stat[16].to_i
        process["priority"]    = stat[17].to_i
        process["nice"]        = stat[18].to_i
        # Skip 19
        process["itrealvalue"] = stat[20].to_i
        process["starttime"]   = stat[21].to_i
        process["vsize"]       = stat[22].to_i
        process["rss"]         = stat[23].to_i
        process["rlim"]        = stat[24].to_s
        process["startcode"]   = stat[25].to_i
        process["endcode"]     = stat[26].to_i
        process["startstack"]  = stat[27].to_i
        process["kstkesp"]     = stat[28].to_i
        process["kstkeip"]     = stat[29].to_i
        process["signal"]      = stat[30].to_i
        process["blocked"]     = stat[31].to_i
        process["sigignore"]   = stat[32].to_i
        process["sigcatch"]    = stat[33].to_i
        process["wchan"]       = stat[34].to_s
        process["nswap"]       = stat[35].to_i
        process["cnswap"]      = stat[36].to_i
        process["exit_signal"] = stat[37].to_i
        process["processor"]   = stat[38].to_i
        process["rt_priority"] = stat[39].to_i
        process["policy"]      = stat[40].to_i
      rescue
        
      end
        # Get /proc/<pid>/status information (name, uid, euid, gid, egid)
        begin
          IO.foreach("/proc/#{file}/status") do |line|
            case line
              when /Name:\s*?(\w+)/
                process["name"] = $1
              when /Uid:\s*?(\d+)\s*?(\d+)/
                process["uid"]  = $1.to_i
                process["euid"] = $2.to_i
              when /Gid:\s*?(\d+)\s*?(\d+)/
                process["gid"]  = $1.to_i
                process["egid"] = $2.to_i
            end
          end
        rescue Errno::ESRCH, Errno::ENOENT
        end
        
        # If cmdline is empty use comm instead
        process["cmdline"] = process["comm"] if process["cmdline.empty?"]
        event = LogStash::Event.new( "file" => "/proc" ,"host" => @host, "type" => "pidstats" , "process" => process);
        decorate(event)
        queue << event
      }


end

#readSysIpcShm(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 504

def readSysIpcShm(queue)
    #  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    file = Pathname.new("/proc/sysvipc/shm")
    #   key      shmid perms                  size  cpid  lpid nattch   uid   gid  cuid  cgid      atime      dtime      ctime                   rss                  swap
    #     0     589824  1600                524288  1708  1739      2  1000  1000  1000  1000 1433801660 1433801660 1433801659                 12288                     0
    #     0     491521  1600                524288  1479   871      2  1000  1000  1000  1000 1433801655          0 1433801655                147456                     0
    lines = file.readlines
    junk = lines.shift
    lines.each { |line|
      m = line.strip.split(/[\s]+/)
      if (m && m.length >= 14 )
      event = LogStash::Event.new(
              "raw"   => line, 
              "key"   => m[0], 
              "shmid" => m[1].to_i,
              "perms" => m[2].to_i,
              "size"  => m[3].to_i,
              "cpid"  => m[4].to_i,
              "lpid"  => m[5].to_i,
              "nattch"=> m[6].to_i,
              "uid"   => m[7].to_i,
              "gid"   => m[8].to_i,
              "cuid"  => m[9].to_i,
              "cgid"  => m[10].to_i,
              "atime" => m[11].to_i,
              "dtime" => m[12].to_i,
              "ctime" => m[13].to_i,
              "rss"   => m[14].to_i,
              "file"  => file.to_s,
              "host"  => @host, 
              "type"  => "sysipcshm" )
              decorate(event)
              queue << event
      end
  }

end

#readVmStats(queue) ⇒ Object

def register



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# File 'lib/logstash/inputs/proc.rb', line 44

def readVmStats(queue)
  file = Pathname.new("/proc/vmstat")
  lines = file.readlines
  vmstats = {}
  lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      m = /(\w+)\s+([\.\d]+)/.match(line)
      if (m && m.length >= 3 )
        vmstats[m[1]]=m[2].to_i
      end
  }
  event = LogStash::Event.new( 'vmstats'=> vmstats, "file" => file.to_s,"host" => @host, "type" => "vmstats" )
  decorate(event)
  queue << event

end

#readWireless(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 468

def readWireless(queue)
    #  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    file = Pathname.new("/proc/net/wireless")
    #Inter-| sta-|   Quality        |   Discarded packets               | Missed | WE
    #face | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon | 22
    #  wlan0: 0000   32.  -78.  -256        0      0      0     19     89        0
    lines = file.readlines
    junk = lines.shift
    junk = lines.shift
    lines.each { |line|
      #@logger.info? && @logger.info("LINE: "+line)
      m = line.strip.split(/[:\s]+/)
      if (m && m.length >= 11 )
      event = LogStash::Event.new(
              "raw"           => line, 
              "iface"         => m[0], 
              "status"        => m[1].to_i,
              "linkQuality"   => m[2].to_f,
              "levelQuality"  => m[3].to_f,
              "noiseQulity"   => m[4].to_i,
              "nwidDiscard"   => m[5].to_i,
              "cryptDiscard"  => m[6].to_i,
              "fragDiscard"   => m[7].to_i,
              "retryDiscard"  => m[8].to_i,
              "miscDiscard"   => m[9].to_i,
              "missedBeacon"  => m[10].to_i,
              "we22"          => m[11].to_i,
              "file"          => file.to_s,
              "host"          => @host, 
              "type"          => "wireless" )
              decorate(event)
              queue << event
      end
  }

end

#register ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 38

def register
  @host = Socket.gethostname
  @logger.info("Registering Proc Input", :type => @type, :interval => @interval)
  
end

#run(queue) ⇒ Object 



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# File 'lib/logstash/inputs/proc.rb', line 542

def run(queue)
  loop do
    begin
    start = Time.now
    readVmStats(queue)     if @vmstats
    readLoadAverage(queue) if @loadavg
    readMemInfo(queue)     if @meminfo
    readPidStats(queue)    if @pidstats
    readDiskStats(queue)   if @diskstats
    readMounts(queue)      if @mounts
    readNetDev(queue)      if @netdev
    readCpuInfo(queue)     if @cpuinfo
    readCrypto(queue)      if @crypto
    readWireless(queue)    if @wireless
    readSysIpcShm(queue)   if @sysipcshm
    duration = Time.now - start
    @logger.info("Parsing completed", :duration => duration, :interval => @interval )
    # Sleep for the remainder of the interval, or 0 if the duration ran
    # longer than the interval.
    sleeptime = [0, @interval - duration].max
    if sleeptime == 0
      @logger.warn("Parsing longer than the interval. Skipping sleep.",
                   :duration => duration,
                   :interval => @interval)
    else
      sleep(sleeptime)
    end
    rescue => exception
      puts exception.message 
      puts exception.backtrace
      raise
    end # rescue
  end # loop
end