Description:
Unable to perform backup & restore procedure using mcm. duo to failure in starting cluster with --initial flag.
servers:
192.168.15.217 ndbd mgmt and mysqld
192.168.15.218 ndbd mgmt and mysqld
192.168.15.219 mysqld
How to repeat:
mcm> start cluster mysql_cluster;
+------------------------------+
| Command result |
+------------------------------+
| Cluster started successfully |
+------------------------------+
1 row in set (20.06 sec)
mcm> backup cluster mysql_cluster;
+-------------------------------+
| Command result |
+-------------------------------+
| Backup completed successfully |
+-------------------------------+
1 row in set (1.85 sec)
mcm> list backups mysql_cluster;
+----------+--------+----------------+----------------------+---------+
| BackupId | NodeId | Host | Timestamp | Comment |
+----------+--------+----------------+----------------------+---------+
| 1 | 1 | 192.168.15.217 | 2017-03-28 15:57:04Z | |
| 1 | 2 | 192.168.15.218 | 2017-03-28 15:57:04Z | |
+----------+--------+----------------+----------------------+---------+
2 rows in set (0.05 sec)
mcm> stop cluster mysql_cluster;
+------------------------------+
| Command result |
+------------------------------+
| Cluster stopped successfully |
+------------------------------+
1 row in set (18.55 sec)
mcm> show status mysql_cluster;
+---------------+---------+---------+
| Cluster | Status | Comment |
+---------------+---------+---------+
| mysql_cluster | stopped | |
+---------------+---------+---------+
1 row in set (0.04 sec)
mcm> start cluster --initial mysql_cluster;
ERROR 7006 (00MGR): Process error: Node 51 : es to '::';
2017-03-28 18:58:25 9015 [Note] Server socket created on IP: '::'.
2017-03-28 18:58:25 9015 [Note] NDB Index Stat: Starting...
2017-03-28 18:58:25 9015 [Note] NDB Index Stat: Wait for server start completed
2017-03-28 18:58:25 9015 [ERROR] /opt/mcm/cluster/bin/mysqld: Incorrect information in file: './mysql/user.frm'
2017-03-28 18:58:25 9015 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
mcm> show status -r mysql_cluster;
+--------+----------+----------------+---------+-----------+---------+
| NodeId | Process | Host | Status | Nodegroup | Package |
+--------+----------+----------------+---------+-----------+---------+
| 49 | ndb_mgmd | 192.168.15.217 | running | | 7.4.8 |
| 50 | ndb_mgmd | 192.168.15.218 | running | | 7.4.8 |
| 1 | ndbd | 192.168.15.217 | running | 0 | 7.4.8 |
| 2 | ndbd | 192.168.15.218 | running | 0 | 7.4.8 |
| 51 | mysqld | 192.168.15.217 | failed | | 7.4.8 |
| 52 | mysqld | 192.168.15.218 | failed | | 7.4.8 |
| 53 | mysqld | 192.168.15.219 | failed | | 7.4.8 |
| 54 | ndbapi | * | added | | |
+--------+----------+----------------+---------+-----------+---------+
8 rows in set (0.08 sec)
mcm> restore cluster --backupid=1 mysql_cluster;
ERROR 5200 (00MGR): Restore can not be performed with current process states in cluster mysql_cluster
