Mongo Balancer未运行

Question

我配置了mongo共享集群，但当我进入sh.isBalancerRunning()时，它给出了false答案，当我通过sh.status()检查状态时，它也给出了以下输出。

balancer:
    Currently enabled:  yes
    Currently running:  no
        Balancer lock taken at Wed Sep 13 2017 05:37:35 GMT+0000 (UTC) by ConfigServer:Balancer
        Balancer active window is set between 23:00 and 18:00 server local time
    Failed balancer rounds in last 5 attempts:  5
    Last reported error:  could not find host matching read preference { mode: "primary" } for set rs1
    Time of Reported error:  Tue Sep 12 2017 14:33:10 GMT+0000 (UTC)
    Migration Results for the last 24 hours:

如何启动平衡器？

Answer 1

您需要先检查连接。

验证从Mongo的服务器到"rs1“主Mon神实例的连通性。我相信它应该能行得通。

辅助窗口，请在没有平衡器活动窗口计划的情况下重试。我猜MongoDB Balancer不会把18:00读成第二天。

您可以更改它：

use config

db.settings.update({_id: "balancer"}, {$unset: {activeWindow: {start: "23:00", stop:"18:00"}}})