插入数据时出错：NoHostAvailable：

问题描述

我尝试学习Apache Cassandra的基础知识。我在

到目前为止，我一直在尝试更新python驱动程序（），但它没有

我做错了什么？还是cqlsh有问题？

解决方案

确定。我找到了答案。 NetworkTopologyStrategy不适合在单个节点上运行。在SimpleStrategy上更改复制策略后，一切开始起作用。

I try to learn basics of Apache Cassandra. I found this simple example of application at https://docs.datastax.com/en/cql/3.1/cql/ddl/ddl_music_service_c.html

So I created a keyspace, then I created a table, and now I am trying to add some data to the database.

But when I try to Insert data I have got an error: "NoHostAvailable:" That's it. No more information.

So far I've tried to update python driver (NoHostAvailable exception connecting to Cassandra from python) but it didn't work.

What I do wrong? Or is it a problem with cqlsh?

解决方案

OK. I've found the answer. The NetworkTopologyStrategy is not suited for running on a single node. After changing replication strategy on SimpleStrategy everything started to work.

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