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MDEV-30686: Endless loop when trying to establish connection

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With wsrep_sst_rsync, node goes into endless loop when trying
to establish connection to donor for IST/SST if the database
is bind on specific IP address, not the "*".

This commit fixes this problem. Separate tests are not
required - the problem can occur in normal configurations
on a number of systems when selecting a bing address other
than "*", especially on FreeBSD and with the IPv6 addresses.
This commit is contained in:
Julius Goryavsky
2024-08-07 16:40:35 +02:00
parent cd8b8bb964
commit 2c5d8376cd
1 changed files with 3 additions and 4 deletions
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7
scripts/wsrep_sst_rsync.sh
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@@ -100,10 +100,9 @@ check_pid_and_port()
local busy=0
if [ $lsof_available -ne 0 ]; then
port_info=$(lsof -Pnl -i ":$port" 2>/dev/null | \
grep -F '(LISTEN)')
port_info=$(lsof -Pnl -i ":$port" 2>/dev/null | grep -F '(LISTEN)')
echo "$port_info" | \
grep -q -E "[[:space:]](\\*|\\[?::\\]?):$port[[:space:]]" && busy=1
grep -q -E "[[:space:]]\\[?(\\*|[[:xdigit:]]*(:[[:xdigit:]]*)+)(\\](%[^:]+)?)?:$port[[:space:]]" && busy=1
else
local filter='([^[:space:]]+[[:space:]]+){4}[^[:space:]]+'
if [ $sockstat_available -ne 0 ]; then
@@ -122,7 +121,7 @@ check_pid_and_port()
grep -F 'users:(' | grep -o -E "$filter")
fi
echo "$port_info" | \
grep -q -E "[[:space:]](\\*|\\[?::\\]?):$port\$" && busy=1
grep -q -E "[[:space:]]\\[?(\\*|[[:xdigit:]]*(:[[:xdigit:]]*)+)(\\](%[^:]+)?)?:$port\$" && busy=1
fi
if [ $busy -eq 0 ]; then