1、在管理節點上進行備份。
ndb_mgm> start backup nowait
ndb_mgm> Node 3: Backup 4 started from node 1
Node 3: Backup 4 started from node 1 completed
StartGCP: 43010 StopGCP: 43013
#Records: 2138 #LogRecords: 0
Data: 53068 bytes Log: 0 bytes

ndb_mgm> shutdown
Node 3: Cluster shutdown initiated
Node 4: Cluster shutdown initiated
Node 4: Node shutdown completed.
Node 3: Node shutdown completed.
NDB Cluster node(s) have shutdown.
Disconnecting to allow management server to shutdown.
ndb_mgm> exit
2、刪掉SQL節點的數據。
DROP DATABASE TEST_CLUSTER;
、關閉MYSQLD服務器。
[root@localhost bin]# service mysqld stop
Shutting down MySQL... SUCCESS!
3、重新順序啟動所有節點。
[root@localhost mysql]# /usr/local/mysql/ndb_mgmd -f /etc/config.ini
[root@localhost data]# /usr/local/mysql/bin/ndbd --initial
我發現如果不帶這個 --initial選項的話，恢復會失敗。
[root@localhost bin]# service mysqld start
Starting MySQL SUCCESS!
4、在NDBD節點上進行恢復。（每個節點都得執行一次，因為數據分散在兩個節點上）
第一個節點：
[root@localhost BACKUP]# /usr/local/mysql/bin/ndb_restore -n3 -b4 -r -m --backup_path=/usr/local/mysql/data/BACKUP/BACKUP-4/
-r開關是記錄集合。
-m是元數據。就是表和庫的SCHEMA。
Nodeid = 3
Backup Id = 4
backup path = /usr/local/mysql/data/BACKUP/BACKUP-4/
Ndb version in backup files: Version 5.1.21
Connected to ndb!!
Successfully restored table `test_cluster/def/lk4_test`
...
Successfully created index `PRIMARY` on `lk4_test`
...
_____________________________________________________
Processing data in table: test_cluster/def/lk4_test54) fragment 1
_____________________________________________________
...
Restored 37 tuples and 0 log entries

NDBT_ProgramExit: 0 - OK
第二個節點：
[root@localhost BACKUP-1]# /usr/local/mysql/bin/ndb_restore -n4 -b4 -r --backup_path=/usr/local/mysql/data/BACKUP/BACKUP-4/
Nodeid = 4
Backup Id = 4
backup path = /usr/local/mysql/data/BACKUP/BACKUP-4/
Ndb version in backup files: Version 5.1.21
Connected to ndb!!
_____________________________________________________
Processing data in table: sys/def/NDB$EVENTS_0(1) fragment 1
_____________________________________________________
Processing data in table: mysql/def/ndb_apply_status(4) fragment 1
_____________________________________________________
Processing data in table: mysql/def/NDB$BLOB_2_3(3) fragment 1
_____________________________________________________
Processing data in table: test/def/t11(5) fragment 1
_____________________________________________________
Processing data in table: sys/def/SYSTAB_0(0) fragment 1
_____________________________________________________
Processing data in table: mysql/def/ndb_schema(2) fragment 1
Restored 2 tuples and 0 log entries