TA-unix/bin/iostat_metric.sh
Michael Erdely 07122cafad
Use ip command to determine IP address ('hostname -I' does not work on all Linux systems)
Filter out multiple listing of the same btrfs volume
Use mktemp for temp files (for times when the TA may be run outside of Splunk)
If running rlog.sh outside of Splunk, use $HOME to store seek file
Debian also uses apt
Arch Linux uses pacman
Add use of sudo -n for 'apt update' and 'pacman -Syy'
vmstat uses "K paged out"
Replace the use of 'sar' with netstat and vm_stat for MacOS
2025-01-08 18:21:51 -05:00

67 lines
4.8 KiB
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Executable file

#!/bin/sh
# SPDX-FileCopyrightText: 2024 Splunk, Inc.
# SPDX-License-Identifier: Apache-2.0
# suggested command for testing reads: $ find / -type f 2>/dev/null | xargs wc &> /dev/null &
# shellcheck disable=SC1091
. "$(dirname "$0")"/common.sh
if [ "$KERNEL" = "Linux" ] ; then
CMD='iostat -xky 1 1'
assertHaveCommand "$CMD"
if [ ! -f "/etc/os-release" ] ; then
DEFINE="-v OSName=$(cat /etc/*release | head -n 1| awk -F" release " '{print $1}'| tr ' ' '_') -v OS_version=$(cat /etc/*release | head -n 1| awk -F" release " '{print $2}' | cut -d\. -f1) -v IP_address=$(ip -4 route show default | awk '{print $9}')"
else
DEFINE="-v OSName=$(cat /etc/*release | grep '\bNAME=' | cut -d '=' -f2 | tr ' ' '_' | cut -d\" -f2) -v OS_version=$(cat /etc/*release | grep -E '\b(VERSION|BUILD)_ID=' | cut -d '=' -f2 | cut -d\" -f2) -v IP_address=$(ip -4 route show default | awk '{print $9}')"
fi
FILTER='/Device/ && /r\/s/ && /w\/s/ {f=1;}f'
# shellcheck disable=SC2016
PRINTF='{if ($0~/Device/) {printf "%s OSName OS_version IP_address \n", $0} else if (NF!=0) {printf "%s %s %s %s\n", $0, OSName, OS_version, IP_address}}'
elif [ "$KERNEL" = "SunOS" ] ; then
CMD='iostat -xn 1 2'
# jscpd:ignore-start
assertHaveCommand "$CMD"
DEFINE="-v OSName=$(uname -s) -v OS_version=$(uname -r) -v IP_address=$(ifconfig -a | grep 'inet ' | grep -v 127.0.0.1 | cut -d\ -f2 | head -n 1)"
FILTER='/device/ && /r\/s/ && /w\/s/ {f++;} f==2'
# shellcheck disable=SC2016
PRINTF='{if ($0~/device/ && /r\/s/ && /w\/s/) {printf "%s OSName OS_version IP_address \n", $0} else if (NF!=0) {printf "%s %s %s %s\n", $0, OSName, OS_version, IP_address}}'
# jscpd:ignore-end
elif [ "$KERNEL" = "AIX" ] ; then
CMD='iostat 1 2'
assertHaveCommand "$CMD"
DEFINE="-v OSName=$(uname -s) -v OS_version=$(oslevel -r | cut -d'-' -f1) -v IP_address=$(ifconfig -a | grep 'inet ' | grep -v 127.0.0.1 | cut -d\ -f2 | head -n 1)"
FILTER='/^cd/ {next} /Disks/ && /Kb_read/ && /Kb_wrtn/ {f++;} f==2'
# shellcheck disable=SC2016
PRINTF='{if ($0~/Disks/ && /Kb_read/ && /Kb_wrtn/) {printf "%s OSName OS_version IP_address \n", $0} else if (NF!=0) {printf "%s %s %s %s\n", $0, OSName, OS_version/1000, IP_address}}'
elif [ "$KERNEL" = "FreeBSD" ] ; then
CMD='iostat -x -c 2'
assertHaveCommand "$CMD"
DEFINE="-v OSName=$(uname -s) -v OS_version=$(uname -r) -v IP_address=$(ifconfig -a | grep 'inet ' | grep -v 127.0.0.1 | cut -d\ -f2 | head -n 1)"
FILTER='/device/ && /r\/s/ && /w\/s/ {f++;} f==2'
# shellcheck disable=SC2016
PRINTF='{if ($0~/device/ && /r\/s/ && /w\/s/) {printf "%s OSName OS_version IP_address \n", $0} else if (NF!=0) {printf "%s %s %s %s\n", $0, OSName, OS_version, IP_address}}'
elif [ "$KERNEL" = "Darwin" ] ; then
CMD="eval $SPLUNK_HOME/bin/darwin_disk_stats ; sleep 2; echo Pause; $SPLUNK_HOME/bin/darwin_disk_stats"
# shellcheck disable=SC2086
assertHaveCommandGivenPath $CMD
HEADER='Device rReq_PS wReq_PS rKB_PS wKB_PS avgWaitMillis avgSvcMillis bandwUtilPct OSName OS_version IP_address'
HEADERIZE="BEGIN {print \"$HEADER\"}"
PRINTF='{printf "%-10s %11s %11s %12s %12s %13s %13s %13s %-35s %15s %-16s\n", device, rReq_PS, wReq_PS, rKB_PS, wKB_PS, avgWaitMillis, avgSvcMillis, bandwUtilPct, OSName, OS_version, IP_address}'
DEFINE="-v OSName=$(uname -s) -v OS_version=$(uname -r) -v IP_address=$(ifconfig -a | grep 'inet ' | grep -v 127.0.0.1 | cut -d\ -f2 | head -n 1)"
# shellcheck disable=SC2016
FILTER='BEGIN {FS="|"; after=0} /^Pause$/ {after=1; next} !/Bytes|Operations/ {next} {devices[$1]=$1; values[after,$1,$2]=$3; next}'
FORMAT='{avgSvcMillis=bandwUtilPct="?";OSName=OSName;OS_version=OS_version;IP_address=IP_address;}'
FUNC1='function getDeltaPS(disk, metric) {delta=values[1,disk,metric]-values[0,disk,metric]; return delta/2.0}'
# Calculates the latency by pulling the read and write latency fields from darwin__disk_stats and evaluating their sum
LATENCY='function getLatency(disk) {read=getDeltaPS(disk,"Latency Time (Read)"); write=getDeltaPS(disk,"Latency Time (Write)"); return expr read + write;}'
FUNC2='function getAllDeltasPS(disk) {rReq_PS=getDeltaPS(disk,"Operations (Read)"); wReq_PS=getDeltaPS(disk,"Operations (Write)"); rKB_PS=getDeltaPS(disk,"Bytes (Read)")/1024; wKB_PS=getDeltaPS(disk,"Bytes (Write)")/1024; avgWaitMillis=getLatency(disk);}'
SCRIPT="$HEADERIZE $FILTER $FUNC1 $LATENCY $FUNC2 END {$FORMAT for (device in devices) {getAllDeltasPS(device); $PRINTF}}"
# shellcheck disable=SC2086
$CMD | tee "$TEE_DEST" | awk $DEFINE "$SCRIPT" header="$HEADER"
echo "Cmd = [$CMD]; | awk $DEFINE '$SCRIPT' header=\"$HEADER\"" >> "$TEE_DEST"
exit 0
fi
# shellcheck disable=SC2086
$CMD | tee "$TEE_DEST" | $AWK $DEFINE "$FILTER $PRINTF"
echo "Cmd = [$CMD]; | $AWK $DEFINE '$FILTER'" >> "$TEE_DEST"