我创建了一个 MySQL NDB Cluster，其中包含 2 个数据节点、1 个 mgm 节点和 1 个 mysqld 用于测试。我还为 NDB 到 INNODB 复制创建了一个从属。我的 binlog 没有记录 DML 语句，因此我无法为 NDB Cluster 进行时间点恢复，并且 DML 语句也没有在从站上复制，只创建了没有行条目的表。
master 上的 ndb_binlog_index 表是空的，没有条目。
下面是 ndb-cluster mysqld 的 my.cnf 文件。
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
log_bin=/home/binlog/ndbcluster-bin
log-bin-index=ndbcluster-bin.index
binlog_format=ROW
user=mysql
#NDB
ndbcluster
ndb-nodeid=101
default-storage-engine=NDB
ndb-connectstring=192.168.56.101,192.168.56.102
[mysql_cluster]
ndb-connectstring=192.168.56.101,192.168.56.102
[ndb_mgmd]
config-dir=/usr/mysql-cluster
config-file=/etc/config.ini
版本信息
version | 8.0.20-cluster |
| version_comment | MySQL Cluster Community Server - GPL |
如图所示的 binlog 变量
mysql> show variables like '%bin%';
+------------------------------------------------+-------------------------------------+
| Variable_name | Value |
+------------------------------------------------+-------------------------------------+
| bind_address | * |
| binlog_cache_size | 32768 |
| binlog_checksum | CRC32 |
| binlog_direct_non_transactional_updates | OFF |
| binlog_encryption | OFF |
| binlog_error_action | ABORT_SERVER |
| binlog_expire_logs_seconds | 2592000 |
| binlog_format | ROW |
| binlog_group_commit_sync_delay | 0 |
| binlog_group_commit_sync_no_delay_count | 0 |
| binlog_gtid_simple_recovery | ON |
| binlog_max_flush_queue_time | 0 |
| binlog_order_commits | ON |
| binlog_rotate_encryption_master_key_at_startup | OFF |
| binlog_row_event_max_size | 8192 |
| binlog_row_image | FULL |
| binlog_row_metadata | MINIMAL |
| binlog_row_value_options | |
| binlog_rows_query_log_events | OFF |
| binlog_stmt_cache_size | 32768 |
| binlog_transaction_compression | OFF |
| binlog_transaction_compression_level_zstd | 3 |
| binlog_transaction_dependency_history_size | 25000 |
| binlog_transaction_dependency_tracking | COMMIT_ORDER |
| innodb_api_enable_binlog | OFF |
| log_bin | ON |
| log_bin_basename | /home/binlog/ndbcluster-bin |
| log_bin_index | /var/lib/mysql/ndbcluster-bin.index |
| log_bin_trust_function_creators | OFF |
| log_bin_use_v1_row_events | OFF |
| log_statements_unsafe_for_binlog | ON |
| max_binlog_cache_size | 18446744073709547520 |
| max_binlog_size | 1073741824 |
| max_binlog_stmt_cache_size | 18446744073709547520 |
| mysqlx_bind_address | * |
| ndb_log_bin | OFF |
| ndb_log_binlog_index | ON |
| ndb_report_thresh_binlog_epoch_slip | 10 |
| ndb_report_thresh_binlog_mem_usage | 10 |
| ndbinfo_database | ndbinfo |
| ndbinfo_max_bytes | 0 |
| ndbinfo_max_rows | 10 |
| ndbinfo_offline | OFF |
| ndbinfo_show_hidden | OFF |
| ndbinfo_table_prefix | ndb$ |
| ndbinfo_version | 524308 |
| sql_log_bin | ON |
| sync_binlog | 1 |
+------------------------------------------------+-------------------------------------+
48 rows in set (0.01 sec)
下面是显示 binlog 中没有条目的测试。
mysql> show binlog events in 'ndbcluster-bin.000003';
+-----------------------+-----+----------------+-----------+-------------+-------------------------------------------+
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
+-----------------------+-----+----------------+-----------+-------------+-------------------------------------------+
| ndbcluster-bin.000003 | 4 | Format_desc | 1 | 125 | Server ver: 8.0.20-cluster, Binlog ver: 4 |
| ndbcluster-bin.000003 | 125 | Previous_gtids | 1 | 156 | |
+-----------------------+-----+----------------+-----------+-------------+-------------------------------------------+
2 rows in set (0.00 sec)
mysql>
mysql> create database test;
Query OK, 1 row affected (0.08 sec)
mysql> use test
Database changed
mysql>
mysql> create table employees (staff_no int(10));
Query OK, 0 rows affected, 1 warning (0.29 sec)
mysql>
mysql> show binlog events in 'ndbcluster-bin.000003';
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
| ndbcluster-bin.000003 | 4 | Format_desc | 1 | 125 | Server ver: 8.0.20-cluster, Binlog ver: 4 |
| ndbcluster-bin.000003 | 125 | Previous_gtids | 1 | 156 | |
| ndbcluster-bin.000003 | 156 | Anonymous_Gtid | 1 | 233 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| ndbcluster-bin.000003 | 233 | Query | 1 | 341 | create database test /* xid=84 */ |
| ndbcluster-bin.000003 | 341 | Anonymous_Gtid | 1 | 418 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| ndbcluster-bin.000003 | 418 | Query | 1 | 547 | use `test`; create table employees (staff_no int(10)) /* xid=92 */ |
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
6 rows in set (0.00 sec)
mysql>
mysql> insert into employees values (1234), (3242);
Query OK, 2 rows affected (0.01 sec)
Records: 2 Duplicates: 0 Warnings: 0
mysql> commit;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> select * from employees;
+----------+
| staff_no |
+----------+
| 3242 |
| 1234 |
+----------+
2 rows in set (0.00 sec)
mysql> show binlog events in 'ndbcluster-bin.000003';
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
| ndbcluster-bin.000003 | 4 | Format_desc | 1 | 125 | Server ver: 8.0.20-cluster, Binlog ver: 4 |
| ndbcluster-bin.000003 | 125 | Previous_gtids | 1 | 156 | |
| ndbcluster-bin.000003 | 156 | Anonymous_Gtid | 1 | 233 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| ndbcluster-bin.000003 | 233 | Query | 1 | 341 | create database test /* xid=84 */ |
| ndbcluster-bin.000003 | 341 | Anonymous_Gtid | 1 | 418 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| ndbcluster-bin.000003 | 418 | Query | 1 | 547 | use `test`; create table employees (staff_no int(10)) /* xid=92 */ |
+-----------------------+-----+----------------+-----------+-------------+--------------------------------------------------------------------+
6 rows in set (0.00 sec)
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql>
mysql> select * from ndb_binlog_index;
Empty set (0.00 sec)
我还用 mysqlbinlog 检查了 binlog，但它也没有显示任何插入条目。
{
[root@ndb-cluster-mysqld1 binlog]# mysqlbinlog -v --base64-output=DECODE-ROWS ndbcluster-bin.000003
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#200528 14:20:15 server id 1 end_log_pos 125 CRC32 0x3ad8779c Start: binlog v 4, server v 8.0.20-cluster created 200528 14:20:15
# Warning: this binlog is either in use or was not closed properly.
# at 125
#200528 14:20:15 server id 1 end_log_pos 156 CRC32 0x71313f0a Previous-GTIDs
# [empty]
# at 156
#200528 14:21:12 server id 1 end_log_pos 233 CRC32 0x0f5b463e Anonymous_GTID last_committed=0 sequence_number=1 rbr_only=no original_committed_timestamp=1590655872244131 immediate_commit_timestamp=1590655872244131 transaction_length=185
# original_commit_timestamp=1590655872244131 (2020-05-28 14:21:12.244131 IST)
# immediate_commit_timestamp=1590655872244131 (2020-05-28 14:21:12.244131 IST)
/*!80001 SET @@session.original_commit_timestamp=1590655872244131*//*!*/;
/*!80014 SET @@session.original_server_version=80020*//*!*/;
/*!80014 SET @@session.immediate_server_version=80020*//*!*/;
SET @@SESSION.GTID_NEXT= 'ANONYMOUS'/*!*/;
# at 233
#200528 14:21:12 server id 1 end_log_pos 341 CRC32 0xb8313dcf Query thread_id=16 exec_time=0 error_code=0 Xid = 84
SET TIMESTAMP=1590655872/*!*/;
SET @@session.pseudo_thread_id=16/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1168113696/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!\C utf8mb4 *//*!*/;
SET @@session.character_set_client=255,@@session.collation_connection=255,@@session.collation_server=255/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
/*!80011 SET @@session.default_collation_for_utf8mb4=255*//*!*/;
/*!80016 SET @@session.default_table_encryption=0*//*!*/;
create database test
/*!*/;
# at 341
#200528 14:22:35 server id 1 end_log_pos 418 CRC32 0x562df9ef Anonymous_GTID last_committed=1 sequence_number=2 rbr_only=no original_committed_timestamp=1590655955983593 immediate_commit_timestamp=1590655955983593 transaction_length=206
# original_commit_timestamp=1590655955983593 (2020-05-28 14:22:35.983593 IST)
# immediate_commit_timestamp=1590655955983593 (2020-05-28 14:22:35.983593 IST)
/*!80001 SET @@session.original_commit_timestamp=1590655955983593*//*!*/;
/*!80014 SET @@session.original_server_version=80020*//*!*/;
/*!80014 SET @@session.immediate_server_version=80020*//*!*/;
SET @@SESSION.GTID_NEXT= 'ANONYMOUS'/*!*/;
# at 418
#200528 14:22:35 server id 1 end_log_pos 547 CRC32 0x8618cc05 Query thread_id=16 exec_time=0 error_code=0 Xid = 92
use `test`/*!*/;
SET TIMESTAMP=1590655955/*!*/;
/*!80013 SET @@session.sql_require_primary_key=0*//*!*/;
create table employees (staff_no int(10))
/*!*/;
SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
DELIMITER ;
# End of log file
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
}
请帮助我自过去 2 天以来一直坚持这一点。
谢谢。