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Merge pull request #640 from grooverdan/10.3-MDEV-8743-wsrep_sst_common-close-fds

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MDEV-8743: wsrep_sst_common close FDs > 2
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Jan Lindström 2018-03-15 08:44:54 +02:00 committed by GitHub
commit 1a0b573b2b
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1 changed files with 22 additions and 0 deletions
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22
scripts/wsrep_sst_common.sh
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@ -16,6 +16,28 @@
# This is a common command line parser to be sourced by other SST scripts
# Close file descriptors numbered above 2 just in case mysqld or the
# wsrep_provider left a file descriptor open. We don't want a broken SST
# script or called program from overwriting a tablespace because
# its file descriptor was left open.
if [ -d /proc/self/fd ]; then
for fd in /proc/self/fd/*; do
fd=${fd##*/}
# While bash would support the below syntax other sh's don't
#[ $fd -gt 2 ] && exec {fd}>&-
[ $fd -gt 2 ] && eval "exec ${fd}>&-" 2> /dev/null
done
else
upper_no_file=$(ulimit -n)
[ "$upper_no_file" = "unlimited" ] || [ -z "$upper_no_file" ] && upper_no_file=1024
while [ $upper_no_file -gt 2 ]
do
eval "exec ${upper_no_file}>&-"
upper_no_file=$(( "$upper_no_file" - 1 ))
done
fi
set -u
WSREP_SST_OPT_BYPASS=0