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zh-translation:content/zh/faq/applications/cassandra.md (#5848)

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---
title: Can I run Casandra inside an Istio mesh?
description: How to run Cassandra with Istio.
title: 可以在 Istio mesh 中运行 Casandra 吗？
description: 如何在 Istio 上运行 Cassandra。
weight: 50
keywords: [cassandra]
---
By default, Cassandra broadcasts the address it uses for binding
(accepting connections) to other Cassandra nodes as its address. This
is usually the pod IP address and works fine without a service
mesh. However, with a service mesh this configuration does not
work. Istio and other service meshes require `localhost`
(`127.0.0.1`) to be the address for binding.
默认情况下，Cassandra 广播用于绑定（接受连接）到其他 Cassandra 节点的地址作为其地址。这通常是 Pod IP 地址，无需服务网格即可正常工作。但是，对于服务网格，此配置不起作用。Istio 和其他服务网格需要 `localhost` （`127.0.0.1`） 作为绑定地址。
There are two configuration parameters to pay attention to:
[`listen_address`](http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html?highlight=listen_address#listen-address)
and
[`broadcast_address`](http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html?highlight=listen_address#broadcast-address). For
running Cassandra in an Istio mesh,
the `listen_address` parameter should be set to `127.0.0.1` and the
`broadcast_address` parameter should be set to the pod IP address.
有两个配置参数要注意：
[`listen_address`](http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html?highlight=listen_address#listen-address) 和 [`broadcast_address`](http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html?highlight=listen_address#broadcast-address)。为了在 Istio 网格中运行 Cassandra，应该将 `listen_address` 参数设置为 `127.0.0.1`，将 `broadcast_address` 参数设置为 Pod IP 地址。
These configuration parameters are defined in `cassandra.yaml` in the
Cassandra configuration directory (e.g. `/etc/cassandra`). There are
various startup scripts (and yaml files) used for starting Cassandra
and care should be given to how these parameters are set by these
scripts. For example, some scripts used to configure and start
Cassandra use the value of the environment variable
`CASSANDRA_LISTEN_ADDRESS` for setting `listen_address`.
这些配置参数在 Cassandra 配置目录（例如 `/etc/cassandra`）的 `cassandra.yaml` 中定义。有多种用于启动 Cassandra 的脚本（和 yaml 文件），应注意这些脚本如何设置这些参数。例如，一些用于配置和启动 Cassandra 的脚本使用环境变量 `CASSANDRA_LISTEN_ADDRESS` 的值来设置 `listen_address`。