status(); { "clusterName": "greatsqlMGR", "defaultReplicaSet": { "name": "default", "primary": "GreatSQL-01:3306", "ssl": "REQUIRED", "status": "OK", "statusText": "Cluster is ONLINE and can tolerate up to ONE failure.", "topology": { "GreatSQL-01:3306": { "address": ...
数据节点是用命令ndbd启动的。 SQL节点:这是用来访问簇数据的节点。对于MySQL簇,客户端节点是使用NDB簇存储引擎的传统MySQL服务器。典型情况下,SQL节点是使用命令mysqld –ndbcluster启动的,或将ndbcluster添加到my.cnf后使用mysqld启动。 簇配置包括对簇中单独节点的配置,以及设置节点之间的单独通信链路。对于目前设计...
效果如下: 接下来将SQL01、SQL02根据正文中的步骤重新创建网卡并做绑定(无法直接进行修改,见槽点三) 三.修改弹性网卡的API ModifyNetworkInterface竟然只能修改网卡名称跟网卡描述,如果要更改网卡,要经过 解绑主机网卡 —— 删除弹性网卡 —— 创建新弹性网卡 —— 绑定主机。。而这一切,是的还是得通过API来做(见槽...
Gli indici vengono creati automaticamente da SQL Server quando si definiscono vincoli PRIMARY KEY e UNIQUE sulle colonne della tabella. Quando si crea una tabella con un vincolo UNIQUE, ad esempio, il motore di database crea automaticamente un indice non cluster. Se invece si configu...
1. Not Clustered or the Cluster service is up and online 起因是服务器SQL Server之前有开启SQL Server AlwaysOn High availability feature and installed Failove
Indexes and keys in NDB tables.Keys and indexes on NDB Cluster tables are subject to the following limitations: Column width.Attempting to create an index on anNDBtable column whose width is greater than 3072 bytes is rejected withER_TOO_LONG_KEY:Specified key was too long; max key length ...
string SQL采集功能的状态,取值范围如下: Enable开启。 Disabled关闭。 Disabled Request string 请求。 59011-2A38-4207-A86C-72BC1F882D19 示例 正常示例 JSON { "Status": "Disabled", "RequestId": "59011D2B-2A38-4207-A86C-72BC1F882D19" } 错误 HTTPstatus code错误码错误信息描述...
win下的集群报no more cluster attempts left,Windows Server集群(cluster)技术是以三层式应用程序的架构来设计的,每一层都有相对应的解决方案。例如,本文介绍的网络负载均衡(NetworkLoadBalance,NLB)便是属于前端的集群技术,另外尚有属于中介层的COM+组件负载均
The MySQL servers involved in replication should in this case be restarted. After this, you should use the RESET MASTER and RESET REPLICA (prior to NDB 8.0.22, use RESET SLAVE) statements to clear the invalid ndb_binlog_index and ndb_apply_status tables, respectively. ...
Use the cluster_index_clause to identify the cluster for which a cluster index is to be created. If you do not qualify cluster with schema, Oracle assumes the cluster is in your current schema. You cannot create a cluster index for a hash cluster....