- A+
所属分类：Error
错误代码：
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mysql> drop database zz; ERROR 1047 (08S01): WSREP has not yet prepared node for application use |
原因分析：
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mysql> show status like '%wsrep_cluster%'; +--------------------------+--------------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------------+ | wsrep_cluster_conf_id | 18446744073709551615 | | wsrep_cluster_size | 2 | | wsrep_cluster_state_uuid | e35b3ad5-788e-11e8-8767-6750dfa85f8e | | wsrep_cluster_status | non-Primary | +--------------------------+--------------------------------------+ 4 rows in set (0.01 sec) |
PXC(Percona Xtradb Cluster)为了保证数据一致性只允许小于50%的节点脱离集群,当节点数小于50%的子集群会进入非主模式拒绝对外提供服务.会导致集群暂时无法对外提供服务.
修复方法：
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mysql> SET GLOBAL wsrep_provider_options = 'pc.bootstrap=true'; mysql> show status like '%wsrep_cluster%'; +--------------------------+--------------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------------+ | wsrep_cluster_conf_id | 15 | | wsrep_cluster_size | 2 | | wsrep_cluster_state_uuid | e35b3ad5-788e-11e8-8767-6750dfa85f8e | | wsrep_cluster_status | Primary | +--------------------------+--------------------------------------+ |
查看服务器最佳提交：
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mysql> show status like 'wsrep_last_committed'; +----------------------+-------+ | Variable_name | Value | +----------------------+-------+ | wsrep_last_committed | 3 | +----------------------+-------+ 1 row in set (0.00 sec) |
参考：
1：https://stackoverflow.com/questions/40653238/mariadb-galera-error-when-a-node-shutdown-error-1047-wsrep-has-not-yet-prepare
2：https://www.j4ml.com/t/37207
