nso-memory-utilization-tool/monitor.sh at master · NSO-developer/nso-memory-utilization-tool · GitHub

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#!/bin/bash

NS=1000000000


# SCRIPT_NAME=$1
# PID=$(pgrep -f "$SCRIPT_NAME")
# OUTPUT_FILE=$2
DURATION=$1
VERBOSE=${2:-0}
SIGNAL_FILE=$3
STARTI=$4
CACHE_FILE="/tmp/cache.log"

ALLOC_LIMIT_PERCENT=90
RSS_LIMIT_PERCENT=90 #20 for testing
ALLOC_LIMIT_CRIT_PERCENT=95
RSS_LIMIT_CRIT_PERCENT=95 # 24 for testing

if  [ -z "$DURATION" ]; then
  echo "Usage: $0 <duration> [verbose_flag] [signal_file]"
  exit 1
fi

log_verbose() {
  timestamp=$(date)
  if [ $VERBOSE -eq 1 ]; then
    echo $timestamp" [VERBOSE] "$1
  fi
}

log_error () {
    timestamp=$(date)
    echo $timestamp" [ERR] "$1
}

log_monitor () {
    timestamp=$(date)
    echo $timestamp" [MONITOR] "$1
}


log_monitor_verbose () {
    timestamp=$(date)
      if [ $VERBOSE -eq 1 ]; then
    echo $timestamp" [MONITOR VERBOSE] "$1
  fi
}
# if [[ $OUTPUT_FILE == *"python3"* ]]; then
#   TYPE=1
# elif [[ $OUTPUT_FILE == *"ncs.smp"* ]]; then
#   TYPE=2
# elif [[ $OUTPUT_FILE == *"NcsJVMLauncher"* ]]; then
#   TYPE=3
# else
#   TYPE=4
# fi


OUTPUT_DIR=$(dirname "$OUTPUT_FILE")
mkdir -p "$OUTPUT_DIR"

MemTotal=$(cat /proc/meminfo | grep 'MemTotal' | awk -F' ' '{print $2}')

for (( i=$STARTI;i<=$DURATION;i++ ))
do
  SIGNALBACK_FILE="/tmp/signalback/nso_collect_start_signalback_$$_$i"
  # Wait for centralized controller signal
  if [ ! -z "$SIGNAL_FILE" ]; then
    log_verbose "Waiting for start signal..."
    #echo "Waiting for start signal..."

    while true; do
      if [ -f "$SIGNAL_FILE" ]; then
#        Data=$(cat $SIGNAL_FILE 2>/dev/null || echo 12345678999999  )
         Data=$(awk 'NR==1' $SIGNAL_FILE 2>/dev/null || echo 12345678999999)
        if  [[ $Data -eq $i ]]; then
              break
              log_verbose "Start signal received. Beginning data collection for PID $SCRIPT_NAME..."
        else
           sleep 0.1
        fi
      else
         sleep 0.1
      fi
    done

  else
      log_error "SIGNAL_FILE Parameter not provided"
  fi

  #rm -f $SIGNALBACK_FILE
  # Tick!

  # Collection
  # General System Status
  # Allocated
  ALO_TOTAL=$(cat /proc/meminfo | grep 'Committed_AS' | awk -F' ' '{print $2}')
  Limit=$(cat /proc/meminfo | grep 'CommitLimit' | awk -F' ' '{print $2}')
  # Physical
  MemFree=$(cat /proc/meminfo | grep 'MemFree' | awk -F' ' '{print $2}')
  MemTotal=$(cat /proc/meminfo | grep 'MemTotal' | awk -F' ' '{print $2}')
  MemUsed=$(($MemTotal-$MemFree))
  #TIME=$(awk 'NR==2' $SIGNAL_FILE 2>/dev/null || echo 12345678999999)

    # Monitor
    # Committed_AS vs CommitLimit
    # MemFree vs MemTotal
    ALO_LIMIT=$(( $Limit*$ALLOC_LIMIT_PERCENT/100 ))
    RSS_LIMIT=$(( $MemTotal*$RSS_LIMIT_PERCENT/100 ))
    ALO_CRIT_LIMIT=$(( $Limit*$ALLOC_LIMIT_CRIT_PERCENT/100 ))
    RSS_CRIT_LIMIT=$(( $MemTotal*$RSS_LIMIT_CRIT_PERCENT/100 ))

    ALO_USAGE_PERCENT=$(( $ALO_TOTAL*100/$Limit ))
    RSS_USAGE_PERCENT=$(( $MemUsed*100/$MemTotal ))

    if [ $ALO_TOTAL -lt $ALO_LIMIT ]; then
        log_monitor_verbose "[INFO] Committed_AS $ALO_TOTAL KB/$Limit KB($ALO_USAGE_PERCENT%) is within $ALLOC_LIMIT_PERCENT% of CommitLimit"
    elif [ $ALO_TOTAL -lt $ALO_CRIT_LIMIT ] && [ $ALO_TOTAL -gt $ALO_LIMIT ]; then
        log_monitor "[WARNING] Committed_AS $ALO_TOTAL KB/$Limit KB($ALO_USAGE_PERCENT%) exceeded $ALLOC_LIMIT_PERCENT% of CommitLimit"
    else
        log_monitor "[CRIT] Committed_AS $ALO_TOTAL KB/$Limit KB($ALO_USAGE_PERCENT%) exceeded $ALLOC_LIMIT_CRIT_PERCENT% of CommitLimit"
    fi

    if [ $MemUsed -lt $RSS_LIMIT ]; then
        log_monitor_verbose "[INFO] Physical Memory Usage $MemUsed KB/$MemTotal KB($RSS_USAGE_PERCENT%) is within $RSS_LIMIT_PERCENT% of MemTotal"
    elif [ $MemUsed -lt $RSS_CRIT_LIMIT ] && [ $MemUsed -gt $RSS_LIMIT ]; then
        log_monitor "[WARNING] Physical Memory Usage $MemUsed KB/$MemTotal KB($RSS_USAGE_PERCENT%) exceeded $RSS_LIMIT_PERCENT% of MemTotal"
    else
        log_monitor "[CRIT] Physical Memory Usage $MemUsed KB/$MemTotal KB($RSS_USAGE_PERCENT%) exceeded $RSS_LIMIT_CRIT_PERCENT% of MemTotal"
    fi

  # fi
  touch $SIGNALBACK_FILE

  # Allocated
  ALO_TOTAL=""
  Limit=""
  # Physical
  MemFree=$(cat /proc/meminfo | grep 'MemFree' | awk -F' ' '{print $2}')
  MemTotal=$(cat /proc/meminfo | grep 'MemTotal' | awk -F' ' '{print $2}')
  MemUsed=$(($MemTotal-$MemFree))

 done