mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-22 17:28:25 +01:00
Rework temporary node name generation in ejabberdctl
This should limit number of possible node names generated by and with that prevent atom space exhaustion in ejabberd process. On R23+ we switch to using native dynamic node features and on older versions we iterate over small number of possible names and skip those already in use.
This commit is contained in:
Paweł Chmielowski
parent
c81a47a692
commit
95135af6b3
47
.github/container/ejabberdctl.template
vendored
47
.github/container/ejabberdctl.template
vendored
@ -227,16 +227,27 @@ help()
|
||||
}
|
||||
|
||||
# dynamic node name helper
|
||||
uid()
|
||||
{
|
||||
uuid=$(uuidgen 2>/dev/null)
|
||||
random=$(awk 'BEGIN { srand(); print int(rand()*32768) }' /dev/null)
|
||||
[ -z "$uuid" ] && [ -f /proc/sys/kernel/random/uuid ] && uuid=$(cat /proc/sys/kernel/random/uuid)
|
||||
[ -z "$uuid" ] && uuid=$(printf "%X" "${random:-$$}$(date +%M%S)")
|
||||
uuid=$(printf '%s' $uuid | sed 's/^\(...\).*$/\1/')
|
||||
[ $# -eq 0 ] && echo "${uuid}-${ERLANG_NODE}"
|
||||
[ $# -eq 1 ] && echo "${uuid}-${1}-${ERLANG_NODE}"
|
||||
[ $# -eq 2 ] && echo "${uuid}-${1}@${2}"
|
||||
uid() {
|
||||
if erl -noinput -boot start_clean -eval 'case erlang:system_info(otp_release) >= "23" of true -> halt(1); _ -> halt(0) end.' ; then
|
||||
N=1
|
||||
PF=$(( $$ % 97 ))
|
||||
while
|
||||
case $# in
|
||||
0) NN="${PF}-${N}-${ERLANG_NODE}"
|
||||
;;
|
||||
1) NN="${PF}-${N}-${1}-${ERLANG_NODE}"
|
||||
;;
|
||||
2) NN="${PF}-${N}-${1}@${2}"
|
||||
;;
|
||||
esac
|
||||
N=$(( N + 1 + ( $$ % 5 ) ))
|
||||
epmd -names 2>/dev/null | grep -q " ${NN%@*} "
|
||||
do :; done
|
||||
echo $NN
|
||||
else
|
||||
# for R23+ use native dynamic node code
|
||||
echo undefined
|
||||
fi
|
||||
}
|
||||
|
||||
# stop epmd if there is no other running node
|
||||
@ -307,7 +318,9 @@ wait_status()
|
||||
if [ $timeout -eq 0 ] ; then
|
||||
status="$1"
|
||||
else
|
||||
run_erl "$(uid ctl)" -hidden -noinput -s ejabberd_ctl \
|
||||
run_erl "$(uid ctl)" -hidden -noinput \
|
||||
-eval 'net_kernel:connect_node('"'$ERLANG_NODE'"')' \
|
||||
-s ejabberd_ctl \
|
||||
-extra "$ERLANG_NODE" $NO_TIMEOUT status > /dev/null
|
||||
status="$?"
|
||||
fi
|
||||
@ -350,7 +363,9 @@ case $1 in
|
||||
;;
|
||||
etop)
|
||||
set_dist_client
|
||||
exec_erl "$(uid top)" -hidden -node "$ERLANG_NODE" -s etop \
|
||||
exec_erl "$(uid top)" -hidden -node "$ERLANG_NODE" \
|
||||
-eval 'net_kernel:connect_node('"'$ERLANG_NODE'"')' \
|
||||
-s etop \
|
||||
-s erlang halt -output text
|
||||
;;
|
||||
iexdebug)
|
||||
@ -367,7 +382,9 @@ case $1 in
|
||||
[ "$PEER" = "${PEER%.*}" ] && PS="-s"
|
||||
set_dist_client
|
||||
exec_cmd "$ERL" ${PS:--}name "$(uid ping "$(hostname $PS)")" $ERLANG_OPTS \
|
||||
-noinput -hidden -eval 'io:format("~p~n",[net_adm:ping('"'$PEER'"')])' \
|
||||
-noinput -hidden \
|
||||
-eval 'net_kernel:connect_node('"'$PEER'"')' \
|
||||
-eval 'io:format("~p~n",[net_adm:ping('"'$PEER'"')])' \
|
||||
-s erlang halt -output text
|
||||
;;
|
||||
started)
|
||||
@ -383,7 +400,9 @@ case $1 in
|
||||
;;
|
||||
*)
|
||||
set_dist_client
|
||||
run_erl "$(uid ctl)" -hidden -noinput -s ejabberd_ctl \
|
||||
run_erl "$(uid ctl)" -hidden -noinput \
|
||||
-eval 'net_kernel:connect_node('"'$ERLANG_NODE'"')' \
|
||||
-s ejabberd_ctl \
|
||||
-extra "$ERLANG_NODE" $NO_TIMEOUT "$@"
|
||||
result=$?
|
||||
case $result in
|
||||
|
||||
@ -248,16 +248,27 @@ help()
|
||||
}
|
||||
|
||||
# dynamic node name helper
|
||||
uid()
|
||||
{
|
||||
uuid=$(uuidgen 2>/dev/null)
|
||||
random=$(awk 'BEGIN { srand(); print int(rand()*32768) }' /dev/null)
|
||||
[ -z "$uuid" ] && [ -f /proc/sys/kernel/random/uuid ] && uuid=$(cat /proc/sys/kernel/random/uuid)
|
||||
[ -z "$uuid" ] && uuid=$(printf "%X" "${random:-$$}$(date +%M%S)")
|
||||
uuid=$(printf '%s' $uuid | sed 's/^\(...\).*$/\1/')
|
||||
[ $# -eq 0 ] && echo "${uuid}-${ERLANG_NODE}"
|
||||
[ $# -eq 1 ] && echo "${uuid}-${1}-${ERLANG_NODE}"
|
||||
[ $# -eq 2 ] && echo "${uuid}-${1}@${2}"
|
||||
uid() {
|
||||
if erl -noinput -boot start_clean -eval 'case erlang:system_info(otp_release) >= "23" of true -> halt(1); _ -> halt(0) end.' ; then
|
||||
N=1
|
||||
PF=$(( $$ % 97 ))
|
||||
while
|
||||
case $# in
|
||||
0) NN="${PF}-${N}-${ERLANG_NODE}"
|
||||
;;
|
||||
1) NN="${PF}-${N}-${1}-${ERLANG_NODE}"
|
||||
;;
|
||||
2) NN="${PF}-${N}-${1}@${2}"
|
||||
;;
|
||||
esac
|
||||
N=$(( N + 1 + ( $$ % 5 ) ))
|
||||
epmd -names 2>/dev/null | grep -q " ${NN%@*} "
|
||||
do :; done
|
||||
echo $NN
|
||||
else
|
||||
# for R23+ use native dynamic node code
|
||||
echo undefined
|
||||
fi
|
||||
}
|
||||
|
||||
# stop epmd if there is no other running node
|
||||
@ -300,7 +311,9 @@ wait_status()
|
||||
if [ $timeout -eq 0 ] ; then
|
||||
status="$1"
|
||||
else
|
||||
exec_erl "$(uid ctl)" -hidden -noinput -s ejabberd_ctl \
|
||||
exec_erl "$(uid ctl)" -hidden -noinput \
|
||||
-eval 'net_kernel:connect_node('"'$ERLANG_NODE'"')' \
|
||||
-s ejabberd_ctl \
|
||||
-extra "$ERLANG_NODE" $NO_TIMEOUT status > /dev/null
|
||||
status="$?"
|
||||
fi
|
||||
@ -361,7 +374,9 @@ case $1 in
|
||||
[ "$PEER" = "${PEER%.*}" ] && PS="-s"
|
||||
set_dist_client
|
||||
exec_cmd "$ERL" ${PS:--}name "$(uid ping "$(hostname $PS)")" $ERLANG_OPTS \
|
||||
-noinput -hidden -eval 'io:format("~p~n",[net_adm:ping('"'$PEER'"')])' \
|
||||
-noinput -hidden \
|
||||
-eval 'net_kernel:connect_node('"'$PEER'"')' \
|
||||
-eval 'io:format("~p~n",[net_adm:ping('"'$PEER'"')])' \
|
||||
-s erlang halt -output text
|
||||
;;
|
||||
started)
|
||||
@ -374,7 +389,9 @@ case $1 in
|
||||
;;
|
||||
*)
|
||||
set_dist_client
|
||||
exec_erl "$(uid ctl)" -hidden -noinput -s ejabberd_ctl \
|
||||
exec_erl "$(uid ctl)" -hidden -noinput \
|
||||
-eval 'net_kernel:connect_node('"'$ERLANG_NODE'"')' \
|
||||
-s ejabberd_ctl \
|
||||
-extra "$ERLANG_NODE" $NO_TIMEOUT "$@"
|
||||
result=$?
|
||||
case $result in
|
||||
|
||||
Loading…
Reference in New Issue
Block a user