wsrep_sst_rsync timeout when lsof is not installed

ii  galera                      25.3.5-wheezy      amd64              Galera Replication Framework

ii  mariadb-galera-server       5.5.37+maria-1~whe all                MariaDB database server with Galera cluster (metapackage de

ii  mariadb-galera-server-5.5   5.5.37+maria-1~whe amd64              MariaDB database server with Galera cluster binaries

check_pid_and_port()

{

    local pid_file=$1

    local rsync_pid=$2

    local rsync_port=$3

    local port_info=$(lsof -i :$rsync_port -Pn 2>/dev/null | \

        grep "(LISTEN)")

    local is_rsync=$(echo $port_info | \

        grep -w '^rsync[[:space:]]\+'"$rsync_pid" 2>/dev/null)

    if [ -n "$port_info" -a -z "$is_rsync" ]; then

        wsrep_log_error "rsync daemon port '$rsync_port' has been taken"

        exit 16 # EBUSY

    fi

    check_pid $pid_file && \

        [ -n "$port_info" ] && [ -n "$is_rsync" ] && \

        [ $(cat $pid_file) -eq $rsync_pid ]

}