TA-unix/bin/nfsiostat.sh

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#!/bin/sh
# SPDX-FileCopyrightText: 2024 Splunk, Inc.
# SPDX-License-Identifier: Apache-2.0
# shellcheck disable=SC1091
. "$(dirname "$0")"/common.sh
HEADER='Mount Path r_op/s w_op/s r_KB/s w_KB/s rpc_backlog r_avg_RTT w_avg_RTT r_avg_exe w_avg_exe'
HEADERIZE="BEGIN {print \"$HEADER\"}"
# We can have the multiple mounts for the nfs. So we have to parse mount separately.
# For CentOS and RHEL the number of lines for each mount is 9, while for the ubuntu it is 22
# due to the bug mentioned in this link. https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1584719
# So, we are handling the case of Ubuntu separately.
# When awk iterates through each line, using modulo operator we are checking the line number
# And extracting the particular value from that line and assigning it to the variable
# which we will use when the output of modulo is 0 as it will be the last line of that mount.
# We are also removing last character in the line "path=substr($4, 1, length($4)-1)"
# as last character of the path is ":"
if [ "$KERNEL" = "Linux" ] ; then
OS_FILE=/etc/os-release
if echo "$OS_ID" | grep -qi suse; then
CMD='/usr/sbin/nfsiostat'
assertHaveCommandGivenPath $CMD
else
CMD='nfsiostat'
assertHaveCommand $CMD
fi
no_of_lines=$($CMD| wc -l)
# If there are no mount, exit
if [ "$no_of_lines" -eq 1 ];
then
$CMD >> "$TEE_DEST"
exit 1
fi
# Below condition is added to handle the case of Ubuntu OS
if [ -e $OS_FILE ] && (awk -F'=' '/ID=/ {print $2}' $OS_FILE | grep -q ubuntu);
then
# shellcheck disable=SC2016
OS_RELEASE=$($AWK -F= '/VERSION_ID=/ {print $2}' $OS_FILE)
if [ "$OS_RELEASE" = "\"18.04\"" ] || [ "$OS_RELEASE" = "\"20.04\"" ] || [ "$OS_RELEASE" = "\"22.04\"" ] ; then # Ubuntu 18.04, 20.04 and 22.04
# shellcheck disable=SC2016
FORMAT='{
if (NR%10==2){
echo "device"
device=$1
path=substr($4, 1, length($4)-1)
}
else if (NR%10==5){
rpc_backlog=$2
}
else if (NR%10==8){
r_op_s=$1
r_kb_s=$2
r_avg_rtt=$6
r_avg_exe=$7
}
else if (NR%10==0){
w_op_s=$1
w_kb_s=$2
w_avg_rtt=$6
w_avg_exe=$7
printf "%s %s %s %s %s %s %s %s %s %s %s\n",device, path, r_op_s, w_op_s, r_kb_s, w_kb_s, rpc_backlog, r_avg_rtt, w_avg_rtt, r_avg_exe, w_avg_exe
}
}'
else
# shellcheck disable=SC2016
FORMAT='{
if (NR%22==2){
echo "device"
device=$1
path=substr($4, 1, length($4)-1)
}
else if (NR%22==6){
rpc_backlog=$1
}
else if (NR%22==9){
r_op_s=$1
}
else if (NR%22==10){
r_kb_s=$1
}
else if (NR%22==13){
r_avg_rtt=$1
}
else if (NR%22==14){
r_avg_exe=$1
}
else if (NR%22==17){
w_op_s=$1
}
else if (NR%22==18){
w_kb_s=$1
}
else if (NR%22==21){
w_avg_rtt=$1
}
else if (NR%22==0){
w_avg_exe=$1
printf "%s %s %s %s %s %s %s %s %s %s %s\n",device, path, r_op_s, w_op_s, r_kb_s, w_kb_s, rpc_backlog, r_avg_rtt, w_avg_rtt, r_avg_exe, w_avg_exe
}
}'
fi
# For SUSE OS
elif echo "$OS_ID" | grep -qi suse;
then
FORMAT='{
if (NR%10==2){
device=$1
path=substr($4, 1, length($4)-1)
}
else if (NR%10==5){
rpc_backlog=$2
}
else if (NR%10==8){
r_op_s=$1
r_kb_s=$2
r_avg_rtt=$6
r_avg_exe=$7
}
else if (NR%10==0){
w_op_s=$1
w_kb_s=$2
w_avg_rtt=$6
w_avg_exe=$7
printf "%s %s %s %s %s %s %s %s %s %s %s\n",device, path, r_op_s, w_op_s, r_kb_s, w_kb_s, rpc_backlog, r_avg_rtt, w_avg_rtt, r_avg_exe, w_avg_exe
}
}'
# For CentOS and RHEL
else
#For RHEL 8.x
if [ -e $OS_FILE ] && ( ( (awk -F'=' '/ID=/ {print $2}' $OS_FILE | grep -q rhel) && (awk -F'=' '/VERSION_ID=/ {print $2}' $OS_FILE | grep -Eq 8.7\|8.6\|8.5\|8.4\|8.3\|9) ) || ( (awk -F'=' '/ID=/ {print $2}' $OS_FILE | grep -q cent) && (awk -F'=' '/VERSION_ID=/ {print $2}' $OS_FILE | grep -Eq 8) ) );
then
# shellcheck disable=SC2016
FORMAT='{
if (NR%10==2){
device=$1
path=substr($4, 1, length($4)-1)
}
else if (NR%10==5){
rpc_backlog=$2
}
else if (NR%10==8){
r_op_s=$1
r_kb_s=$2
r_avg_rtt=$6
r_avg_exe=$7
}
else if (NR%10==0){
w_op_s=$1
w_kb_s=$2
w_avg_rtt=$6
w_avg_exe=$7
printf "%s %s %s %s %s %s %s %s %s %s %s\n",device, path, r_op_s, w_op_s, r_kb_s, w_kb_s, rpc_backlog, r_avg_rtt, w_avg_rtt, r_avg_exe, w_avg_exe
}
}'
else
# shellcheck disable=SC2016
FORMAT='{
if (NR%9==2){
device=$1
path=substr($4, 1, length($4)-1)
}
else if (NR%9==5){
rpc_backlog=$2
}
else if (NR%9==7){
r_op_s=$1
r_kb_s=$2
r_avg_rtt=$6
r_avg_exe=$7
}
else if (NR%9==0){
w_op_s=$1
w_kb_s=$2
w_avg_rtt=$6
w_avg_exe=$7
printf "%s %s %s %s %s %s %s %s %s %s %s\n",device, path, r_op_s, w_op_s, r_kb_s, w_kb_s, rpc_backlog, r_avg_rtt, w_avg_rtt, r_avg_exe, w_avg_exe
}
}'
fi
fi
$CMD | tee "$TEE_DEST" | awk "$HEADERIZE $FORMAT" | column -t
echo "Cmd = [$CMD]; | awk '$HEADERIZE $FORMAT' header=\"$HEADER\"" >> "$TEE_DEST"
else
failUnsupportedScript
fi