问题描述
我在Ubuntu 14 LTS上安装了MemSQL的单个服务器群集.我无法在端口3306上连接到memsql，但是群集在端口9000上运行.看起来像一片落叶.当我尝试将memsql升级到版本4.0.1时，出现此错误:-
I have a single server cluster installation of MemSQL on Ubuntu 14 LTS.I am unable to connect to memsql on port 3306 but the cluster is running on port 9000.Looks like a leaf is down. When i tried to upgrade memsql to version 4.0.1 I got this error:-
Starting MemSQL Upgrade
Currently on state OfflineClusterUpgrade.Init
Currently on state OfflineClusterUpgrade.SnapshottingDatabases
Currently on state OfflineClusterUpgrade.OfflineClusterUpgradeFail
MemSQL node 8D84F89D6716F03A44EACB9E3AF6565FA76B9DE9 failed to upgrade: Could not connect to MemSQL node 8D84F89D6716F03A44EACB9E3AF6565FA76B9DE9. Is the MemSQL node online?
我该怎么做才能再次启动MemSql?
What can I do to bring MemSql up again?
推荐答案
集群管理器在端口9000上提供了帮助.首先，它清楚地显示了所有节点的状态.
The cluster manager provided the help on port 9000.Firstly it clearly showed the status of all nodes.
单击警报图标可以显示解决方案.
There was an alert icon clicking it showed the solution.
我运行了命令
memsql-ops cluster-start
这导致节点恢复并重新启动.这真的很好.
It caused the node to recover and start again. This is really good.
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