Add initial-timeout to SST

[Raghavendra D Prabhu]

Initial timeout to receive packets from donor, so that if donor dies somewhere in between, joiner doesn't hang.

[Raghavendra D Prabhu (raghavendra-prabhu)]

Set by default to 100 seconds, if set to 0, it is disabled. The
option will be sst-initial-timeout.

=== modified file 'scripts/wsrep_sst_xtrabackup-v2.sh'
--- scripts/wsrep_sst_xtrabackup-v2.sh 2014-03-09 14:03:38 +0000
+++ scripts/wsrep_sst_xtrabackup-v2.sh 2014-03-15 23:19:19 +0000
@@ -299,6 +299,7 @@
     iopts=$(parse_cnf sst inno-backup-opts "")
     iapts=$(parse_cnf sst inno-apply-opts "")
     impts=$(parse_cnf sst inno-move-opts "")
+ stimeout=$(parse_cnf sst sst-initial-timeout 100)
 }

 get_stream()
@@ -453,9 +454,19 @@
 {
     local dir=$1
     local msg=$2
+ local tmt=$3

     pushd ${dir} 1>/dev/null
     set +e
+
+ if [[ $tmt -gt 0 && -x `which timeout` ]];then
+ if timeout --help | grep -q -- '-k';then
+ tcmd="timeout -k $(( tmt+10 )) $tmt $tcmd"
+ else
+ tcmd="timeout $tmt $tcmd"
+ fi
+ fi
+
     timeit "$msg" "$tcmd | $strmcmd; RC=( "\${PIPESTATUS[@]}" )"
     set -e
     popd 1>/dev/null
@@ -713,7 +724,7 @@

     STATDIR=$(mktemp -d)
     MAGIC_FILE="${STATDIR}/${INFO_FILE}"
- recv_joiner $STATDIR "${stagemsg}-gtid" 1
+ recv_joiner $STATDIR "${stagemsg}-gtid" 1 $stimeout

     if ! ps -p ${WSREP_SST_OPT_PARENT} &>/dev/null
     then
@@ -763,7 +774,7 @@

         MAGIC_FILE="${DATA}/${INFO_FILE}"
- recv_joiner $DATA "${stagemsg}-SST" 0
+ recv_joiner $DATA "${stagemsg}-SST" 0 0

         get_proc

[Raghavendra D Prabhu (raghavendra-prabhu)]

This is also a workaround for https://bugs.launchpad.net/galera/+bug/1292992

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1650