ProxySQL Cluster的搭建

时间：2018-12-13 11:26:54 阅读：181 评论：0 收藏：0 [点我收藏+]

标签：无法出现 format ssl read_only frequency set ssi 管理

环境:

proxysql-1.4.10-1-centos7.x86_64

db210 192.168.99.210 老节点,已经做成mysql配置和读写分离设置
db211 192.168.99.211 新节点
db212 192.168.99.212 新节点

1.设置集群管理账号

在所有节点上做以下操作

admin@127.0.0.1 [man]>update global_variables set variable_value=‘admin:admin;cluster_21x:zstxxx‘ where variable_name=‘admin-admin_credentials‘;
Query OK, 1 row affected (0.00 sec)

admin@127.0.0.1 [man]>update global_variables set variable_value=‘cluster_21x‘ where variable_name=‘admin-cluster_username‘;
Query OK, 1 row affected (0.00 sec)

admin@127.0.0.1 [man]>update global_variables set variable_value=‘zstxxx‘ where variable_name=‘admin-cluster_password‘;

2.设置集群成员:

admin@127.0.0.1 [man]>insert into proxysql_servers(hostname,port,weight,comment) values(‘db210‘,6032,1,‘primary‘),(‘db211‘,6032,1,‘secondary‘),(‘db212‘,6032,1,‘secondary‘);

3.加载配置

先加载已有服务器配置的第一个ProxySQL节点,再加载其他新节点.

admin@127.0.0.1 [man]>load admin variables to runtime;
admin@127.0.0.1 [man]>load proxysql servers to runtime;
admin@127.0.0.1 [man]>save admin variables to disk;
admin@127.0.0.1 [man]>save proxysql servers to disk;

4.查看群集状态:

注:节点db212还没有配置,所以状态为空

admin@127.0.0.1 [(none)]>select hostname,port,comment,Uptime_s,last_check_ms from   stats_proxysql_servers_metrics;
+----------+------+-----------+----------+---------------+
| hostname | port | comment   | Uptime_s | last_check_ms |
+----------+------+-----------+----------+---------------+
| db212    | 6032 | secondary | 1064     | 468           |
| db211    | 6032 | secondary | 100320   | 279           |
| db210    | 6032 | primary   | 7300     | 283           |
+----------+------+-----------+----------+---------------+
3 rows in set (0.00 sec)
admin@127.0.0.1 [(none)]>select hostname,name,checksum,updated_at from stats_proxysql_servers_checksums;
+----------+-------------------+--------------------+------------+
| hostname | name              | checksum           | updated_at |
+----------+-------------------+--------------------+------------+
| db212    | admin_variables   |                    | 1535100518 |
| db212    | mysql_query_rules | 0x0000000000000000 | 1535100518 |
| db212    | mysql_servers     | 0xB58B50EC4FEF3D20 | 1535100518 |
| db212    | mysql_users       | 0x0000000000000000 | 1535100518 |
| db212    | mysql_variables   |                    | 1535100518 |
| db212    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
| db211    | admin_variables   |                    | 1535100518 |
| db211    | mysql_query_rules | 0x0000000000000000 | 1535100518 |
| db211    | mysql_servers     | 0xB58B50EC4FEF3D20 | 1535100518 |
| db211    | mysql_users       | 0x0000000000000000 | 1535100518 |
| db211    | mysql_variables   |                    | 1535100518 |
| db211    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
| db210    | admin_variables   |                    | 1535100518 |
| db210    | mysql_query_rules | 0xC2127DA38220E59D | 1535100518 |
| db210    | mysql_servers     | 0x2E65DC53740DC1C8 | 1535100518 |
| db210    | mysql_users       | 0x9881C192AE6F7368 | 1535100518 |
| db210    | mysql_variables   |                    | 1535100518 |
| db210    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
+----------+-------------------+--------------------+------------+
18 rows in set (0.00 sec)

5.数据同步的触发

集群建立后,发现有部分数据没有同步,如下表中可以看出db211和db212的mysql_query_rules,mysql_users的checksum都不对

admin@127.0.0.1 [(none)]>select hostname,name,checksum,updated_at from stats_proxysql_servers_checksums;
+----------+-------------------+--------------------+------------+
| hostname | name              | checksum           | updated_at |
+----------+-------------------+--------------------+------------+
| db212    | admin_variables   |                    | 1535100518 |
| db212    | mysql_query_rules | 0x0000000000000000 | 1535100518 |
| db212    | mysql_servers     | 0xB58B50EC4FEF3D20 | 1535100518 |
| db212    | mysql_users       | 0x0000000000000000 | 1535100518 |
| db212    | mysql_variables   |                    | 1535100518 |
| db212    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
| db211    | admin_variables   |                    | 1535100518 |
| db211    | mysql_query_rules | 0x0000000000000000 | 1535100518 |
| db211    | mysql_servers     | 0xB58B50EC4FEF3D20 | 1535100518 |
| db211    | mysql_users       | 0x0000000000000000 | 1535100518 |
| db211    | mysql_variables   |                    | 1535100518 |
| db211    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
| db210    | admin_variables   |                    | 1535100518 |
| db210    | mysql_query_rules | 0xC2127DA38220E59D | 1535100518 |
| db210    | mysql_servers     | 0x2E65DC53740DC1C8 | 1535100518 |
| db210    | mysql_users       | 0x9881C192AE6F7368 | 1535100518 |
| db210    | mysql_variables   |                    | 1535100518 |
| db210    | proxysql_servers  | 0xC405ABD157E8B011 | 1535100518 |
+----------+-------------------+--------------------+------------+
18 rows in set (0.00 sec)

查日志发现以下信息:

detected a peer db211:6032 with mysql_users version 1, epoch 1535000044, diff_check 7860. Own version: 1, epoch: 1535093184. diff_check is increasing, but version 1 doesn‘t allow sync. This message will be repeated every 30 checks until LOAD MYSQL USERS TO RUNTIME is executed on candidate master.

解决办法:在主节点上load to RUNTIME

6.遗留问题:

发现admin_variables和mysql_variables 的 checksum 始终为空,修改值也无法同步.
集群同步监测表中没有mysql_group_replication_hostgroups,还需要自行同步.
db212节点的mysql_servers表的checksum 不同,但肉眼只能看出记录顺序不同,导致一致产生大量日志,尝试重新同步很多次,都出现相同的结果.

db210主节点:

admin@127.0.0.1 [man]>select hostname,name,checksum,changed_at,diff_check from stats_proxysql_servers_checksums;
+----------+-------------------+--------------------+------------+------------+
| hostname | name              | checksum           | changed_at | diff_check |
+----------+-------------------+--------------------+------------+------------+
| db212    | admin_variables   |                    | 0          | 0          |
| db212    | mysql_query_rules | 0xC2127DA38220E59D | 1535122622 | 0          |
| db212    | mysql_servers     | 0xB58B50EC4FEF3D20 | 1535122622 | 110        |
| db212    | mysql_users       | 0x6C619C922DBF30FF | 1535122622 | 0          |
| db212    | mysql_variables   |                    | 0          | 0          |
| db212    | proxysql_servers  | 0xC405ABD157E8B011 | 1535122623 | 0          |
| db211    | admin_variables   |                    | 0          | 0          |
| db211    | mysql_query_rules | 0xC2127DA38220E59D | 1535111313 | 0          |
| db211    | mysql_servers     | 0x2E65DC53740DC1C8 | 1535102178 | 0          |
| db211    | mysql_users       | 0x6C619C922DBF30FF | 1535105932 | 0          |
| db211    | mysql_variables   |                    | 0          | 0          |
| db211    | proxysql_servers  | 0xC405ABD157E8B011 | 1535122626 | 0          |
| db210    | admin_variables   |                    | 0          | 0          |
| db210    | mysql_query_rules | 0xC2127DA38220E59D | 1535096359 | 0          |
| db210    | mysql_servers     | 0x2E65DC53740DC1C8 | 1535100019 | 0          |
| db210    | mysql_users       | 0x6C619C922DBF30FF | 1535105930 | 0          |
| db210    | mysql_variables   |                    | 0          | 0          |
| db210    | proxysql_servers  | 0xC405ABD157E8B011 | 1535122622 | 0          |
+----------+-------------------+--------------------+------------+------------+
18 rows in set (0.00 sec)

admin@127.0.0.1 [man]>select * from mysql_servers;
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
| hostgroup_id | hostname | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
| 10           | db212    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db210    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db212    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db211    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 13           | db210    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 13           | db211    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
6 rows in set (0.00 sec)

db212节点

admin@127.0.0.1 [(none)]>select * from disk.mysql_servers;
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
| hostgroup_id | hostname | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
| 10           | db212    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 13           | db211    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 13           | db210    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db211    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db212    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
| 11           | db210    | 3507 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |
+--------------+----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
6 rows in set (0.00 sec)

7.全配置信息

admin@127.0.0.1 [man]>select * from runtime_global_variables;
+-----------------------------------------------------+--------------------------------+
| variable_name                                       | variable_value                 |
+-----------------------------------------------------+--------------------------------+
| admin-admin_credentials                             | admin:adminxxx;cluster_210:zstxxx |
| admin-stats_credentials                             | stats:stats                    |
| admin-stats_mysql_connections                       | 60                             |
| admin-stats_mysql_connection_pool                   | 60                             |
| admin-stats_mysql_query_cache                       | 60                             |
| admin-stats_system_cpu                              | 60                             |
| admin-stats_system_memory                           | 60                             |
| admin-mysql_ifaces                                  | 0.0.0.0:6032                   |
| admin-telnet_admin_ifaces                           | (null)                         |
| admin-telnet_stats_ifaces                           | (null)                         |
| admin-refresh_interval                              | 2000                           |
| admin-read_only                                     | false                          |
| admin-hash_passwords                                | true                           |
| admin-version                                       | v1.4.10-1-g5eb0f3e             |
| admin-cluster_username                              | cluster_210                    |
| admin-cluster_password                              | zstxxx                         |
| admin-cluster_check_interval_ms                     | 1000                           |
| admin-cluster_check_status_frequency                | 10                             |
| admin-cluster_mysql_query_rules_diffs_before_sync   | 3                              |
| admin-cluster_mysql_servers_diffs_before_sync       | 3                              |
| admin-cluster_mysql_users_diffs_before_sync         | 3                              |
| admin-cluster_proxysql_servers_diffs_before_sync    | 3                              |
| admin-cluster_mysql_query_rules_save_to_disk        | true                           |
| admin-cluster_mysql_servers_save_to_disk            | true                           |
| admin-cluster_mysql_users_save_to_disk              | true                           |
| admin-cluster_proxysql_servers_save_to_disk         | true                           |
| admin-checksum_mysql_query_rules                    | true                           |
| admin-checksum_mysql_servers                        | true                           |
| admin-checksum_mysql_users                          | true                           |
| admin-web_enabled                                   | false                          |
| admin-web_port                                      | 6080                           |
| mysql-shun_on_failures                              | 5                              |
| mysql-shun_recovery_time_sec                        | 10                             |
| mysql-query_retries_on_failure                      | 1                              |
| mysql-client_multi_statements                       | true                           |
| mysql-connect_retries_on_failure                    | 10                             |
| mysql-connect_retries_delay                         | 1                              |
| mysql-connection_delay_multiplex_ms                 | 0                              |
| mysql-connection_max_age_ms                         | 0                              |
| mysql-connect_timeout_server                        | 3000                           |
| mysql-connect_timeout_server_max                    | 10000                          |
| mysql-eventslog_filename                            |                                |
| mysql-eventslog_filesize                            | 104857600                      |
| mysql-default_charset                               | utf8                           |
| mysql-free_connections_pct                          | 10                             |
| mysql-session_idle_ms                               | 1000                           |
| mysql-have_compress                                 | true                           |
| mysql-client_found_rows                             | true                           |
| mysql-interfaces                                    | 0.0.0.0:6033                   |
| mysql-monitor_enabled                               | true                           |
| mysql-monitor_history                               | 600000                         |
| mysql-monitor_connect_interval                      | 60000                          |
| mysql-monitor_connect_timeout                       | 600                            |
| mysql-monitor_ping_interval                         | 10000                          |
| mysql-monitor_ping_max_failures                     | 3                              |
| mysql-monitor_ping_timeout                          | 1000                           |
| mysql-monitor_read_only_interval                    | 1500                           |
| mysql-monitor_read_only_timeout                     | 500                            |
| mysql-monitor_read_only_max_timeout_count           | 3                              |
| mysql-monitor_replication_lag_interval              | 10000                          |
| mysql-monitor_replication_lag_timeout               | 1000                           |
| mysql-monitor_groupreplication_healthcheck_interval | 5000                           |
| mysql-monitor_groupreplication_healthcheck_timeout  | 800                            |
| mysql-monitor_username                              | proxysql                       |
| mysql-monitor_password                              | zstxxx                         |
| mysql-monitor_replication_lag_use_percona_heartbeat |                                |
| mysql-monitor_query_interval                        | 60000                          |
| mysql-monitor_query_timeout                         | 100                            |
| mysql-monitor_slave_lag_when_null                   | 60                             |
| mysql-monitor_wait_timeout                          | true                           |
| mysql-monitor_writer_is_also_reader                 | true                           |
| mysql-max_allowed_packet                            | 4194304                        |
| mysql-throttle_connections_per_sec_to_hostgroup     | 1000000                        |
| mysql-max_transaction_time                          | 14400000                       |
| mysql-multiplexing                                  | true                           |
| mysql-forward_autocommit                            | false                          |
| mysql-enforce_autocommit_on_reads                   | false                          |
| mysql-autocommit_false_not_reusable                 | false                          |
| mysql-autocommit_false_is_transaction               | false                          |
| mysql-verbose_query_error                           | false                          |
| mysql-hostgroup_manager_verbose                     | 1                              |
| mysql-threshold_query_length                        | 524288                         |
| mysql-threshold_resultset_size                      | 4194304                        |
| mysql-query_digests_max_digest_length               | 2048                           |
| mysql-query_digests_max_query_length                | 65000                          |
| mysql-wait_timeout                                  | 28800000                       |
| mysql-throttle_max_bytes_per_second_to_client       | 2147483647                     |
| mysql-throttle_ratio_server_to_client               | 0                              |
| mysql-max_connections                               | 2048                           |
| mysql-max_stmts_per_connection                      | 20                             |
| mysql-max_stmts_cache                               | 10000                          |
| mysql-mirror_max_concurrency                        | 16                             |
| mysql-mirror_max_queue_length                       | 32000                          |
| mysql-default_max_latency_ms                        | 1000                           |
| mysql-default_query_delay                           | 0                              |
| mysql-default_query_timeout                         | 36000000                       |
| mysql-query_processor_iterations                    | 0                              |
| mysql-query_processor_regex                         | 1                              |
| mysql-long_query_time                               | 1000                           |
| mysql-query_cache_size_MB                           | 256                            |
| mysql-ping_interval_server_msec                     | 120000                         |
| mysql-ping_timeout_server                           | 500                            |
| mysql-default_schema                                | information_schema             |
| mysql-poll_timeout                                  | 2000                           |
| mysql-poll_timeout_on_failure                       | 100                            |
| mysql-server_capabilities                           | 45578                          |
| mysql-server_version                                | 5.5.30                         |
| mysql-kill_backend_connection_when_disconnect       | true                           |
| mysql-sessions_sort                                 | true                           |
| mysql-session_idle_show_processlist                 | true                           |
| mysql-commands_stats                                | true                           |
| mysql-query_digests                                 | true                           |
| mysql-query_digests_lowercase                       | false                          |
| mysql-servers_stats                                 | true                           |
| mysql-default_reconnect                             | true                           |
| mysql-ssl_p2s_ca                                    |                                |
| mysql-ssl_p2s_cert                                  |                                |
| mysql-ssl_p2s_key                                   |                                |
| mysql-ssl_p2s_cipher                                |                                |
| mysql-stacksize                                     | 1048576                        |
| mysql-threads                                       | 4                              |
| mysql-init_connect                                  |                                |
| mysql-default_sql_mode                              |                                |
| mysql-default_time_zone                             | SYSTEM                         |
| mysql-connpoll_reset_queue_length                   | 50                             |
| mysql-stats_time_backend_query                      | false                          |
| mysql-stats_time_query_processor                    | false                          |
+-----------------------------------------------------+--------------------------------+
127 rows in set (0.00 sec)

admin@127.0.0.1 [man]>
admin@127.0.0.1 [man]>select * from runtime_proxysql_servers;
+----------+------+--------+-----------+
| hostname | port | weight | comment   |
+----------+------+--------+-----------+
| db210    | 6032 | 1      | primary   |
| db211    | 6032 | 1      | secondary |
| db212    | 6032 | 1      | secondary |
+----------+------+--------+-----------+
3 rows in set (0.00 sec)

8.参考信息:

https://github.com/sysown/proxysql/wiki/ProxySQL-Cluster

http://www.cnblogs.com/2woods/p/9530091.html

ProxySQL Cluster的搭建

标签：无法出现 format ssl read_only frequency set ssi 管理

原文地址：https://www.cnblogs.com/EikiXu/p/10112633.html

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