root@fluorine:/a/mw-log# zgrep 'Failed connecting to redis server' archive/hhvm.log-201507* | awk '{print $12}' | cut -d ':' -f 1 | sort | uniq -c | sort -n | grep -v ';'
      1 10.3.9
      1 10.64.0.201
      4 10.64.32.76
     46 10.64.32.163
     49 10.64.32.161
     54 10.64.32.166
     58 10.64.48.102
     59 10.64.32.164
     61 10.64.48.95
     65 10.64.48.96
     83 10.64.32.165
     89 10.64.48.103
     92 10.64.48.104
    164 10.64.0.180
    189 10.64.0.185
    197 10.64.0.181
    204 10.64.32.162
    212 10.64.0.184
    276 10.64.0.183
    287 10.64.48.101
    387 10.64.0.182
root@fluorine:/a/mw-log#