Merge pull request #4 from ringtail/master

change file count

Author: ringtail

deployment/node-problem-detector-config.yaml

@@ -88,8 +88,8 @@ data:
     {
       "plugin": "custom",
       "pluginConfig": {
-        "invoke_interval": "300s",
-        "timeout": "120s",
+        "invoke_interval": "30s",
+        "timeout": "15s",
         "max_output_length": 80,
         "concurrency": 3,
         "enable_message_change_based_condition_update": false
@@ -121,18 +121,13 @@ data:
       UNKNOWN=2
 
       cd /host/proc
-      sum=0
-      for pid in [0-9]*
-      do
-        sum=$(($sum+$(ls /host/proc/$pid/fd/ | wc -l)))
-      done
 
-      count=$(sum)
+      count=$(find -maxdepth 1 -type d -name '[0-9]*' | xargs -I {} ls {}/fd | wc -l)
       max=$(cat /host/proc/sys/fs/file-max)
 
       echo "current fd is $count and max is $max"
       if [[ $count -gt $((max*8/10)) ]]; then
-          echo "more than 80% fd has been used($count:$max)"
+         echo "more than 80% fd has been used($count:$max)"
          exit $NONOK
       fi
       echo "fd is ok"