MDEV-6247: Merge 10.0-galera to 10.1.

Merged lp:maria/maria-10.0-galera up to revision 3879.

Added a new functions to handler API to forcefully abort_transaction,
producing fake_trx_id, get_checkpoint and set_checkpoint for XA. These
were added for future possiblity to add more storage engines that
could use galera replication.

1 files changed, 102 insertions, 0 deletions

diff --git a/support-files/wsrep_notify.sh b/support-files/wsrep_notify.sh
new file mode 100644
index 00000000000..bdbe3d12a39
--- /dev/null
+++ b/support-files/wsrep_notify.sh
@@ -0,0 +1,102 @@
+#!/bin/sh -eu
+
+# This is a simple example of wsrep notification script (wsrep_notify_cmd).
+# It will create 'wsrep' schema and two tables in it: 'membeship' and 'status'
+# and fill them on every membership or node status change.
+#
+# Edit parameters below to specify the address and login to server.
+
+USER=root
+PSWD=rootpass
+HOST=127.0.0.1
+PORT=3306
+
+SCHEMA="wsrep"
+MEMB_TABLE="$SCHEMA.membership"
+STATUS_TABLE="$SCHEMA.status"
+
+BEGIN="
+SET wsrep_on=0;
+DROP SCHEMA IF EXISTS $SCHEMA; CREATE SCHEMA $SCHEMA;
+CREATE TABLE $MEMB_TABLE (
+    idx  INT UNIQUE PRIMARY KEY,
+    uuid CHAR(40) UNIQUE, /* node UUID */
+    name VARCHAR(32),     /* node name */
+    addr VARCHAR(256)     /* node address */
+) ENGINE=MEMORY;
+CREATE TABLE $STATUS_TABLE (
+    size   INT,      /* component size   */
+    idx    INT,      /* this node index  */
+    status CHAR(16), /* this node status */
+    uuid   CHAR(40), /* cluster UUID */
+    prim   BOOLEAN   /* if component is primary */
+) ENGINE=MEMORY;
+BEGIN;
+DELETE FROM $MEMB_TABLE;
+DELETE FROM $STATUS_TABLE;
+"
+END="COMMIT;"
+
+configuration_change()
+{
+    echo "$BEGIN;"
+
+    local idx=0
+
+    for NODE in $(echo $MEMBERS | sed s/,/\ /g)
+    do
+        echo "INSERT INTO $MEMB_TABLE VALUES ( $idx, "
+        # Don't forget to properly quote string values
+        echo "'$NODE'" | sed  s/\\//\',\'/g
+        echo ");"
+        idx=$(( $idx + 1 ))
+    done
+
+    echo "INSERT INTO $STATUS_TABLE VALUES($idx, $INDEX, '$STATUS', '$CLUSTER_UUID', $PRIMARY);"
+
+    echo "$END"
+}
+
+status_update()
+{
+    echo "SET wsrep_on=0; BEGIN; UPDATE $STATUS_TABLE SET status='$STATUS'; COMMIT;"
+}
+
+COM=status_update # not a configuration change by default
+
+while [ $# -gt 0 ]
+do
+    case $1 in
+    --status)
+        STATUS=$2
+        shift
+        ;;
+    --uuid)
+        CLUSTER_UUID=$2
+        shift
+        ;;
+    --primary)
+        [ "$2" = "yes" ] && PRIMARY="1" || PRIMARY="0"
+        COM=configuration_change
+        shift
+        ;;
+    --index)
+        INDEX=$2
+        shift
+        ;;
+    --members)
+        MEMBERS=$2
+        shift
+        ;;
+    esac
+    shift
+done
+
+# Undefined means node is shutting down
+if [ "$STATUS" != "Undefined" ]
+then
+    $COM | mysql -B -u$USER -p$PSWD -h$HOST -P$PORT
+fi
+
+exit 0
+#