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#! /bin/bash
# Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
# common environment setup for vespa scripts
# put these two lines in all scripts:
# cd $VESPA_HOME || { echo "Cannot cd to $VESPA_HOME" 1>&2; exit 1; } # usually wanted
# . $VESPA_HOME/libexec/vespa/common-env.sh || exit 1
varhasvalue () {
# does the variable named in $1 have a (non-empty) value?
eval "oldvariablevalue=\${$1}"
[ "$oldvariablevalue" ]
}
varisempty () {
# is the variable named in $1 unset, or does it have an empty value?
eval "oldvariablevalue=\${$1}"
[ -z "$oldvariablevalue" ]
}
consider_fallback () {
if varhasvalue $1; then
: $1 already has value $oldvariablevalue
elif [ -z "${2}" ]; then
: proposed value "${2}" is empty
elif [ `expr match "$2" ".*'"` != 0 ]; then
: proposed value "${2}" contains a single-quote
else
eval "${1}='${2}'"
export ${1}
# echo "FALLBACK: ${1}='${2}'"
fi
}
read_conf_file () {
deffile="$VESPA_HOME/conf/vespa/default-env.txt"
if [ -f "${deffile}" ]; then
eval $(perl -ne '
chomp;
my ($action, $varname, $value) = split(" ", $_, 3);
$varname =~ s{[.]}{__}g;
if ($varname !~ m{^\w+}) {
# print STDERR "invalid var name $varname"
next;
}
if ($action eq "fallback" || $action eq "override") {
next if ($action eq "fallback" && $ENV{$varname} ne "");
# quote value
if ($value !~ m{^["][^"]*["]$} ) {
$value =~ s{(\W)}{\\$1}g;
}
print "$varname=$value; export $varname; "
}
if ($action eq "unset") {
print "export -n $varname; unset $varname; "
}
' < $deffile)
fi
}
# Check if a variable is set. Plain environment precedes prefixed vars.
get_var() {
arg=$1
ret_val=$2
env_var_name=`echo $arg | tr '[:lower:]' '[:upper:]'`
prefixed_var_name1=services__${arg}
prefixed_var_name2=vespa_base__${arg}
if varhasvalue $env_var_name ; then eval "ret_val=\${$env_var_name}"
elif varhasvalue $prefixed_var_name1 ; then eval "ret_val=\${$prefixed_var_name1}"
elif varhasvalue $prefixed_var_name2 ; then eval "ret_val=\${$prefixed_var_name2}"
fi
echo "$ret_val"
}
populate_environment () {
# these are the variables we want while running vespa:
# VESPA_HOME - where is Vespa installed
# VESPA_CONFIGSERVERS - the host (or list of host) where a configserver runs
# VESPA_CONFIG_SOURCES - possible override as the first place to get config
# network settings
# VESPA_PORT_BASE - the start of the port range where vespa services should listen
# VESPA_CONFIGSERVER_RPC_PORT - the RPC port for configservers
# VESPA_CONFIGSERVER_HTTP_PORT - the webservice (REST api) port for configservers
# VESPA_CONFIG_PROTOCOL_VERSION - the RPC protocol version to use
# VESPA_WEB_SERVICE_PORT - where the main REST apis will normally run
# debugging
# VESPA_VALGRIND_OPT - for memory leak tracking, the options to use for valgrind
# VESPA_USE_VESPAMALLOC_D - use debugging version of malloc
# VESPA_USE_VESPAMALLOC_DST - use debugging and tracking version of malloc
# optimizations
# VESPA_USE_HUGEPAGES_LIST - list of programs that should use huge pages or memory
# VESPA_USE_MADVISE_LIST - list of programs that should use madvise()
# VESPA_USE_VESPAMALLOC - list of programs that should preload an optimized malloc
# VESPA_USE_NO_VESPAMALLOC - list of programs that should use normal system malloc
read_conf_file
consider_fallback ROOT ${VESPA_HOME%/}
if id vespa >/dev/null 2>&1 ; then
consider_fallback VESPA_USER "vespa"
elif id nobody >/dev/null 2>&1 ; then
consider_fallback VESPA_USER "nobody"
fi
}
prepend_path () {
case ":$PATH:" in
*:"$1":*) ;;
*) PATH="$1:$PATH" ;;
esac
}
add_valgrind_suppressions_file() {
if [ -f "$1" ]
then
VESPA_VALGRIND_SUPPREESSIONS_OPT="$VESPA_VALGRIND_SUPPREESSIONS_OPT --suppressions=$1"
fi
}
populate_environment
export LD_LIBRARY_PATH=$VESPA_HOME/lib64
export MALLOC_ARENA_MAX=1
# Maven is needed for tester applications
prepend_path "$VESPA_HOME/local/maven/bin"
prepend_path "$VESPA_HOME/bin64"
prepend_path "$VESPA_HOME/bin"
# how to find the "java" program?
# should be available in $VESPA_HOME/bin or JAVA_HOME
if [ "$JAVA_HOME" ] && [ -f "${JAVA_HOME}/bin/java" ]; then
prepend_path "${JAVA_HOME}/bin"
fi
VESPA_VALGRIND_SUPPREESSIONS_OPT=""
add_valgrind_suppressions_file ${VESPA_HOME}/etc/vespa/valgrind-suppressions.txt
add_valgrind_suppressions_file ${VESPA_HOME}/etc/vespa/suppressions.txt
consider_fallback VESPA_VALGRIND_OPT "--num-callers=32 \
--run-libc-freeres=yes \
--track-origins=yes \
--freelist-vol=1000000000 \
--leak-check=full \
--show-reachable=yes \
${VESPA_VALGRIND_SUPPREESSIONS_OPT}"
consider_fallback VESPA_USE_HUGEPAGES_LIST $(get_var "hugepages_list")
consider_fallback VESPA_USE_HUGEPAGES_LIST "all"
consider_fallback VESPA_USE_MADVISE_LIST $(get_var "madvise_list")
consider_fallback VESPA_USE_VESPAMALLOC $(get_var "vespamalloc_list")
consider_fallback VESPA_USE_VESPAMALLOC_D $(get_var "vespamallocd_list")
consider_fallback VESPA_USE_VESPAMALLOC_DST $(get_var "vespamallocdst_list")
consider_fallback VESPA_USE_NO_VESPAMALLOC $(get_var "no_vespamalloc_list")
# TODO:
# if [ "$VESPA_USE_HUGEPAGES_LIST" = "all" ]; then
# # Can not enable this blindly as java will emit error if not available. THP must do then.
# export VESPA_USE_HUGEPAGES="yes"
# fi
fixlimits () {
# Cannot bump limits when not root (for testing)
if [ "${VESPA_UNPRIVILEGED}" = yes ]; then
return 0
fi
# number of open files:
if varhasvalue file_descriptor_limit; then
ulimit -n ${file_descriptor_limit} || exit 1
elif [ `ulimit -n` -lt 262144 ]; then
ulimit -n 262144 || exit 1
fi
# core file size
if [ `ulimit -c` != "unlimited" ]; then
ulimit -c unlimited
fi
# number of processes/threads
max_processes=`ulimit -u`
if [ "$max_processes" != "unlimited" ] && [ "$max_processes" -lt 409600 ]; then
ulimit -u 409600
fi
}
checkjava () {
if java -version 2>&1 | grep "64-Bit Server VM" >/dev/null ; then
: OK
else
echo
echo "java must invoke the 64-bit Java VM"
echo "Got:"
java -version
echo "Path: $PATH"
echo
exit 1
fi
}
runvalidation() {
run=$vespa_base__validationscript
if [ "$run" ]; then
if [ -x "$run" ]; then
if $run ; then
: OK
else
echo "validation script '$run' failed"
exit 1
fi
else
echo "validation script '$run' must be executable"
exit 1
fi
else
: no validation script
fi
}
disable_vm_zone_reclaim_mode () {
# Should probably also be done on host.
dn=/proc/sys/vm/zone_reclaim_mode
if [ -w $dn ]; then
echo 0 > $dn
fi
}
drop_caches () {
dn=/proc/sys/vm/drop_caches
if [ -w $dn ]; then
echo 3 > $dn
fi
}
no_transparent_hugepages () {
# Should probably also be done on host.
if grep -q "release 6" /etc/redhat-release; then
dn=/sys/kernel/mm/redhat_transparent_hugepage
khugepaged_defrag=yes
else
dn=/sys/kernel/mm/transparent_hugepage
khugepaged_defrag=1
fi
if [ -w $dn/enabled ]; then
echo always > $dn/enabled
fi
if [ -w $dn/defrag ]; then
echo never > $dn/defrag
fi
if [ -w $dn/khugepaged/defrag ]; then
echo $khugepaged_defrag > $dn/khugepaged/defrag
fi
}
use_configserver_if_needed () {
nvcs=$($VESPA_HOME/bin/vespa-print-default configsources)
x="$VESPA_CONFIG_SOURCES"
if [ "$x" ]; then
export VESPA_CONFIG_SOURCES="$x,$nvcs"
else
export VESPA_CONFIG_SOURCES="$nvcs"
fi
}
getJavaOptionsIPV46() {
canon_ipv4=$(hostname | perl -pe 'chomp; ($_,$rest) = gethostbyname($_);')
if [ -z "${canon_ipv4}" ]; then
echo " -Djava.net.preferIPv6Addresses=true"
fi
}
log_message () {
msg_log_level="info"
case $1 in
error|warning|info|event|config|debug|spam) msg_log_level=$1; shift;;
esac
printf "%s\t%s\t%s\n" $$ $msg_log_level "$*"
}
log_debug_message () {
if [ "$YINST_RUNNING" ]; then
log_message "debug" "$*"
fi
}
log_warning_message () {
log_message "warning" "$*" 1>&2
}
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