/usr/lib/condor/libexec/condor_glexec_kill is in htcondor 8.6.8~dfsg.1-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #!/bin/sh
if [ $# != 6 ]
then
echo "usage: $0 <glexec> <proxy> <pid> <signal> <max-glexec-retries> <min-glexec-retry-delay>" >&2
exit 1
fi
GLEXEC="$1"
PROXY="$2"
PID="$3"
SIGNAL="$4"
MAX_GLEXEC_ERRORS="$5"
MIN_GLEXEC_RETRY_DELAY="$6"
# prevent glexec from creating a proxy in /tmp that is not cleaned up
GLEXEC_TARGET_PROXY=/dev/null
export GLEXEC_TARGET_PROXY
# use glexec to kill the given PID with the given signal
#
SH=`readlink -f /bin/sh`
GLEXEC_CLIENT_CERT="$PROXY"
export GLEXEC_CLIENT_CERT
glexec_errors=0
while [ 1 ]; do
"$GLEXEC" "$SH" -c "/bin/kill -$SIGNAL $PID"
glexec_rc=$?
if [ $glexec_rc -eq 0 ]; then
break
elif [ $glexec_rc -ne 202 ] && [ $glexec_rc -ne 203 ]; then
# Either a non-transient glexec error, or an error from the command
# we are asking glexec to run.
exit 2
fi
# This _could_ be a transient issue, such as a communication error with GUMS,
# so retry up to some limit.
glexec_errors=$(( $glexec_errors + 1 ))
if [ $glexec_errors -gt $MAX_GLEXEC_ERRORS ]; then
exit 3
fi
# truncated exponential backoff
# sleep for X * min(100,1+random_number_in_range(0,glexec_errors-1))
delay_rand=$(( (1 + 0x0$(hexdump -n 4 -e '"%4x\n"' /dev/urandom) % $glexec_errors) % 100 ))
delay=$(( $MIN_GLEXEC_RETRY_DELAY * $delay_rand ))
echo "Glexec exited with status $glexec_rc; retrying in $delay seconds." >&2
sleep $delay
done
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