Merge 10.2 into 10.3

5 files changed, 107 insertions, 74 deletions

diff --git a/scripts/convert-debug-for-diff.sh b/scripts/convert-debug-for-diff.sh
index 60b328d946b..5b3ce05b815 100755
--- a/scripts/convert-debug-for-diff.sh
+++ b/scripts/convert-debug-for-diff.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl -i
+#!/usr/bin/perl -i
 #
 # This script converts all numbers that look like addresses or memory sizes,
 # in a debug files generated by --debug (like mysqld --debug-dbug), to #.
diff --git a/scripts/mysql_system_tables_fix.sql b/scripts/mysql_system_tables_fix.sql
index 3949cd8f072..a96c5279ba0 100644
--- a/scripts/mysql_system_tables_fix.sql
+++ b/scripts/mysql_system_tables_fix.sql
@@ -679,14 +679,14 @@ ALTER TABLE db modify Delete_history_priv enum('N','Y') COLLATE utf8_general_ci
 
 UPDATE user SET Delete_history_priv = Super_priv WHERE @had_user_delete_history_priv = 0;
 
-ALTER TABLE user ADD plugin char(64) CHARACTER SET latin1 DEFAULT '' NOT NULL,
-                 ADD authentication_string TEXT NOT NULL;
+ALTER TABLE user ADD plugin char(64) CHARACTER SET latin1 DEFAULT '' NOT NULL AFTER max_user_connections,
+                 ADD authentication_string TEXT NOT NULL AFTER plugin;
 ALTER TABLE user MODIFY plugin char(64) CHARACTER SET latin1 DEFAULT '' NOT NULL,
                  MODIFY authentication_string TEXT NOT NULL;
-ALTER TABLE user ADD password_expired ENUM('N', 'Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL;
-ALTER TABLE user ADD is_role enum('N', 'Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL;
-ALTER TABLE user ADD default_role char(80) binary DEFAULT '' NOT NULL;
-ALTER TABLE user ADD max_statement_time decimal(12,6) DEFAULT 0 NOT NULL;
+ALTER TABLE user ADD password_expired ENUM('N', 'Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL AFTER authentication_string;
+ALTER TABLE user ADD is_role enum('N', 'Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL AFTER password_expired;
+ALTER TABLE user ADD default_role char(80) binary DEFAULT '' NOT NULL AFTER is_role;
+ALTER TABLE user ADD max_statement_time decimal(12,6) DEFAULT 0 NOT NULL AFTER default_role;
 -- Somewhere above, we ran ALTER TABLE user .... CONVERT TO CHARACTER SET utf8 COLLATE utf8_bin.
 --  we want password_expired column to have collation utf8_general_ci.
 ALTER TABLE user MODIFY password_expired ENUM('N', 'Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL;
diff --git a/scripts/mysqld_safe.sh b/scripts/mysqld_safe.sh
index f40a68a3b1e..98398e5421f 100644
--- a/scripts/mysqld_safe.sh
+++ b/scripts/mysqld_safe.sh
@@ -428,25 +428,10 @@ mysqld_ld_preload_text() {
   echo "$text"
 }
 
-
-mysql_config=
-get_mysql_config() {
-  if [ -z "$mysql_config" ]; then
-    mysql_config=`echo "$0" | sed 's,/[^/][^/]*$,/mysql_config,'`
-    if [ ! -x "$mysql_config" ]; then
-      log_error "Can not run mysql_config $@ from '$mysql_config'"
-      exit 1
-    fi
-  fi
-
-  "$mysql_config" "$@"
-}
-
-
 # set_malloc_lib LIB
 # - If LIB is empty, do nothing and return
-# - If LIB starts with 'tcmalloc' or 'jemalloc', look for the shared library in
-#   /usr/lib, /usr/lib64 and then pkglibdir.
+# - If LIB starts with 'tcmalloc' or 'jemalloc', look for the shared library
+#   using `ldconfig`.
 #   tcmalloc is part of the Google perftools project.
 # - If LIB is an absolute path, assume it is a malloc shared library
 #
@@ -454,28 +439,28 @@ get_mysql_config() {
 # running mysqld.  See ld.so for details.
 set_malloc_lib() {
   malloc_lib="$1"
-
   if expr "$malloc_lib" : "\(tcmalloc\|jemalloc\)" > /dev/null ; then
-    pkglibdir=`get_mysql_config --variable=pkglibdir`
-    where=''
-    # This list is kept intentionally simple.  Simply set --malloc-lib
-    # to a full path if another location is desired.
-    for libdir in /usr/lib /usr/lib64 "$pkglibdir" "$pkglibdir/mysql"; do
-       tmp=`echo "$libdir/lib$malloc_lib.so".[0-9]`
-       where="$where $libdir"
-       # log_notice "DEBUG: Checking for malloc lib '$tmp'"
-       [ -r "$tmp" ] || continue
-       malloc_lib="$tmp"
-       where=''
-       break
-    done
+    if ! my_which ldconfig > /dev/null 2>&1
+    then
+      log_error "ldconfig command not found, required for ldconfig -p"
+      exit 1
+    fi
+    # format from ldconfig:
+    # "libjemalloc.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libjemalloc.so.1"
+    libmalloc_path="$(ldconfig -p | sed -n "/lib${malloc_lib}/p" | cut -d '>' -f2)"
 
-    if [ -n "$where" ]; then
-      log_error "no shared library for lib$malloc_lib.so.[0-9] found in$where"
+    if [ -z "$libmalloc_path" ]; then
+      log_error "no shared library for lib$malloc_lib.so.[0-9] found."
       exit 1
     fi
-  fi
 
+    for f in $libmalloc_path; do
+      if [ -f "$f" ]; then
+        malloc_lib=$f # get the first path if many
+        break
+      fi
+    done
+  fi
   # Allow --malloc-lib='' to override other settings
   [ -z  "$malloc_lib" ] && return
 
@@ -492,7 +477,6 @@ set_malloc_lib() {
       exit 1
       ;;
   esac
-
   add_mysqld_ld_preload "$malloc_lib"
 }
 
diff --git a/scripts/wsrep_sst_common.sh b/scripts/wsrep_sst_common.sh
index 16607470f2c..5e134570881 100644
--- a/scripts/wsrep_sst_common.sh
+++ b/scripts/wsrep_sst_common.sh
@@ -45,28 +45,68 @@ case "$1" in
         case "${WSREP_SST_OPT_ADDR}" in
         \[*)
             # IPv6
+            # Remove the starting and ending square brackets, if present:
             addr_no_bracket=${WSREP_SST_OPT_ADDR#\[}
             readonly WSREP_SST_OPT_HOST_UNESCAPED=${addr_no_bracket%%\]*}
+            # Square brackets are needed in most cases:
             readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]"
+            # Some utilities and subsequent code require an address
+            # without square brackets:
             readonly WSREP_SST_OPT_HOST_ESCAPED="\\[${WSREP_SST_OPT_HOST_UNESCAPED}\\]"
+            readonly WSREP_SST_OPT_HOST_IPv6=1
             ;;
         *)
             readonly WSREP_SST_OPT_HOST=${WSREP_SST_OPT_ADDR%%[:/]*}
             readonly WSREP_SST_OPT_HOST_UNESCAPED=$WSREP_SST_OPT_HOST
             readonly WSREP_SST_OPT_HOST_ESCAPED=$WSREP_SST_OPT_HOST
+            readonly WSREP_SST_OPT_HOST_IPv6=0
             ;;
         esac
+        # Let's remove the leading part that contains the host address:
         remain=${WSREP_SST_OPT_ADDR#${WSREP_SST_OPT_HOST_ESCAPED}}
+        # Let's remove the ":" character that separates the port number
+        # from the hostname:
         remain=${remain#:}
+        # Extract the port number from the address - all characters
+        # up to "/" (if present):
         readonly WSREP_SST_OPT_ADDR_PORT=${remain%%/*}
-        remain=${remain#*/}
-        readonly WSREP_SST_OPT_MODULE=${remain%%/*}
-        readonly WSREP_SST_OPT_PATH=${WSREP_SST_OPT_ADDR#*/}
+        # If the "/" character is present, then the path is not empty:
+        if [ "${remain#*/}" != "${remain}" ]; then
+            # This operation removes everything up to the "/" character,
+            # effectively removing the port number from the string:
+            readonly WSREP_SST_OPT_PATH=${remain#*/}
+        else
+            readonly WSREP_SST_OPT_PATH=""
+        fi
+        # The rest of the string is the same as the path (for now):
+        remain=${WSREP_SST_OPT_PATH}
+        # If there is one more "/" in the string, then everything before
+        # it will be the module name, otherwise the module name is empty:
+        if [ "${remain%%/*}" != "${remain}" ]; then
+            # This operation removes the tail after the very first
+            # occurrence of the "/" character (inclusively):
+            readonly WSREP_SST_OPT_MODULE=${remain%%/*}
+        else
+            readonly WSREP_SST_OPT_MODULE=""
+        fi
+        # Remove the module name part from the string, which ends with "/":
         remain=${WSREP_SST_OPT_PATH#*/}
+        # If the rest of the string does not match the original, then there
+        # was something else besides the module name:
         if [ "$remain" != "${WSREP_SST_OPT_PATH}" ]; then
+            # Extract the part that matches the LSN by removing all
+            # characters starting from the very first "/":
             readonly WSREP_SST_OPT_LSN=${remain%%/*}
+            # Exctract everything after the first occurrence of
+            # the "/" character in the string:
             remain=${remain#*/}
+            # If the remainder does not match the original string,
+            # then there is something else (the version number in
+            # our case):
             if [ "$remain" != "${WSREP_SST_OPT_LSN}" ]; then
+                # Let's extract the version number by removing the tail
+                # after the very first occurence of the "/" character
+                # (inclusively):
                 readonly WSREP_SST_OPT_SST_VER=${remain%%/*}
             else
                 readonly WSREP_SST_OPT_SST_VER=""
diff --git a/scripts/wsrep_sst_mariabackup.sh b/scripts/wsrep_sst_mariabackup.sh
index 573e747c55f..91f9831af1c 100644
--- a/scripts/wsrep_sst_mariabackup.sh
+++ b/scripts/wsrep_sst_mariabackup.sh
@@ -188,27 +188,48 @@ get_transfer()
             if nc -h 2>&1 | grep -q ncat;then 
                 # Ncat
                 tcmd="nc -l ${TSST_PORT}"
-            elif nc -h 2>&1 | grep -q -- '-d\>';then
+            elif nc -h 2>&1 | grep -qw -- '-d\>';then
                 # Debian netcat
-                tcmd="nc -dl ${TSST_PORT}"
+                if [ $WSREP_SST_OPT_HOST_IPv6 -eq 1 ];then
+                    # When host is not explicitly specified (when only the port
+                    # is specified) netcat can only bind to an IPv4 address if
+                    # the "-6" option is not explicitly specified:
+                    tcmd="nc -dl -6 ${TSST_PORT}"
+                else
+                    tcmd="nc -dl ${TSST_PORT}"
+                fi
             else
                 # traditional netcat
                 tcmd="nc -l -p ${TSST_PORT}"
             fi
         else
+            # Check to see if netcat supports the '-N' flag.
+            # -N Shutdown the network socket after EOF on stdin
+            # If it supports the '-N' flag, then we need to use the '-N'
+            # flag, otherwise the transfer will stay open after the file
+            # transfer and cause the command to timeout.
+            # Older versions of netcat did not need this flag and will
+            # return an error if the flag is used.
+            #
+            tcmd_extra=""
+            if nc -h 2>&1 | grep -qw -- -N; then
+                tcmd_extra+="-N"
+		wsrep_log_info "Using nc -N"
+            fi
+
+            # netcat doesn't understand [] around IPv6 address
             if nc -h 2>&1 | grep -q ncat;then
                 # Ncat
-                tcmd="nc ${REMOTEIP} ${TSST_PORT}"
-            elif nc -h 2>&1 | grep -q -- '-d\>';then
+                wsrep_log_info "Using Ncat as streamer"
+                tcmd="nc ${tcmd_extra} ${WSREP_SST_OPT_HOST_UNESCAPED} ${TSST_PORT}"
+            elif nc -h 2>&1 | grep -qw -- '-d\>';then
                 # Debian netcat
-                if nc -h 2>&1 | grep -q -- '-N\>';then
-                   tcmd="nc -N ${REMOTEIP} ${TSST_PORT}"
-                else
-                   tcmd="nc ${REMOTEIP} ${TSST_PORT}"
-                fi
+                wsrep_log_info "Using Debian netcat as streamer"
+                tcmd="nc ${tcmd_extra} ${WSREP_SST_OPT_HOST_UNESCAPED} ${TSST_PORT}"
             else
                 # traditional netcat
-                tcmd="nc -q0 ${REMOTEIP} ${TSST_PORT}"
+                wsrep_log_info "Using traditional netcat as streamer"
+                tcmd="nc -q0 ${tcmd_extra} ${WSREP_SST_OPT_HOST_UNESCAPED} ${TSST_PORT}"
             fi
         fi
     else
@@ -526,25 +547,11 @@ kill_xtrabackup()
 
 setup_ports()
 {
+    SST_PORT=${WSREP_SST_OPT_ADDR_PORT}
     if [[ "$WSREP_SST_OPT_ROLE"  == "donor" ]];then
-        if [ "${WSREP_SST_OPT_ADDR#\[}" != "$WSREP_SST_OPT_ADDR" ]; then
-            remain=$(echo $WSREP_SST_OPT_ADDR | awk -F '\\][:/]' '{ print $2 }')
-            REMOTEIP=$(echo $WSREP_SST_OPT_ADDR | awk -F '\\]:' '{ print $1 }')"]"
-            SST_PORT=$(echo $remain | awk -F '[:/]' '{ print $1 }')
-            lsn=$(echo $remain | awk -F '[:/]' '{ print $3 }')
-            sst_ver=$(echo $remain | awk -F '[:/]' '{ print $4 }')
-        else
-            SST_PORT=$(echo $WSREP_SST_OPT_ADDR | awk -F '[:/]' '{ print $2 }')
-            REMOTEIP=$(echo $WSREP_SST_OPT_ADDR | awk -F ':' '{ print $1 }')
-            lsn=$(echo $WSREP_SST_OPT_ADDR | awk -F '[:/]' '{ print $4 }')
-            sst_ver=$(echo $WSREP_SST_OPT_ADDR | awk -F '[:/]' '{ print $5 }')
-        fi
-    else
-        if [ "${WSREP_SST_OPT_ADDR#\[}" != "$WSREP_SST_OPT_ADDR" ]; then
-            SST_PORT=$(echo ${WSREP_SST_OPT_ADDR} | awk -F '\\]:' '{ print $2 }')
-        else
-            SST_PORT=$(echo ${WSREP_SST_OPT_ADDR} | awk -F ':' '{ print $2 }')
-        fi
+        REMOTEIP=${WSREP_SST_OPT_HOST}
+        lsn=${WSREP_SST_OPT_LSN}
+        sst_ver=${WSREP_SST_OPT_SST_VER}
     fi
 }
 
@@ -704,9 +711,11 @@ if ${INNOBACKUPEX_BIN} /tmp --help 2>/dev/null | grep -q -- '--version-check'; t
     disver="--no-version-check"
 fi
 
+iopts+=" --databases-exclude=\"lost+found\""
+
 if [[ ${FORCE_FTWRL:-0} -eq 1 ]];then 
     wsrep_log_info "Forcing FTWRL due to environment variable FORCE_FTWRL equal to $FORCE_FTWRL"
-    iopts+=" --no-backup-locks "
+    iopts+=" --no-backup-locks"
 fi
 
 INNOEXTRA=$WSREP_SST_OPT_MYSQLD