---
title: Logstash Integration Plugin v1.0.4
description: Plugin version: v1.0.4, Released on: 2024-12-10, Changelog. For other versions, see the overview list. To learn more about Logstash, see the Logstash...
url: https://www.elastic.co/docs/reference/logstash/versioned-plugins/v1-0-4-plugins-integrations-logstash
products:
  - Logstash
applies_to:
  - Elastic Stack: Generally available
---

# Logstash Integration Plugin v1.0.4
- Plugin version: v1.0.4
- Released on: 2024-12-10
- [Changelog](https://github.com/logstash-plugins/logstash-integration-logstash/blob/v1.0.4/CHANGELOG.md)

For other versions, see the [overview list](https://www.elastic.co/docs/reference/logstash/versioned-plugins/integration-logstash-index).
To learn more about Logstash, see the [Logstash Reference](https://www.elastic.co/guide/en/logstash/current/index.html).

## Getting help

For questions about the plugin, open a topic in the [Discuss](http://discuss.elastic.co) forums. For bugs or feature requests, open an issue in [Github](https://github.com/logstash-plugins/logstash-integration-logstash). For the list of Elastic supported plugins, please consult the [Elastic Support Matrix](https://www.elastic.co/support/matrix#matrix_logstash_plugins).

## Description

The Logstash Integration Plugin provides integrated plugins for sending events from one Logstash to another instance(s):
- [Logstash output plugin](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-logstash.html)
- [Logstash input plugin](https://www.elastic.co/guide/en/logstash/current/plugins-inputs-logstash.html)


### High-level concepts

You can configure a `logstash` output to send events to one or more `logstash` inputs, which are each in another pipeline that is running in different processes or on a different host.
To do so, you should first configure the downstream pipeline with a `logstash` input plugin, bound to an available port so that it can listen for inbound connections. Security is enabled by default, so you will need to either provide identity material or disable SSL.
You will need a TCP route from the upstream pipeline to the interface that the downstream pipeline is bound to.
```
input {
  logstash {
    port => 9800

   
    ssl_keystore_path      => "/path/to/identity.p12"
    ssl_keystore_password  => "${SSL_IDENTITY_PASSWORD}"
  }
}
```

Once the downstream pipeline is configured and running, you may send events from any number of upstream pipelines by adding a `logstash` output plugin that points to the downstream input. You may need to configure SSL to trust the certificates presented by the downstream input plugin.
```
output {
  logstash {
    hosts => ["10.0.0.123:9800", "10.0.0.125:9801"]

   
    ssl_truststore_path => "/path/to/truststore.p12"
    ssl_truststore_password => "${SSL_TRUST_PASSWORD}"
  }
}
```


## Load Balancing

When a `logstash` output is configured to send to multiple `hosts`, it distributes events in batches to *all* of those downstream hosts fairly, favoring those without recent errors. This increases the likelihood of each batch being routed to a downstream that is up and has capacity to receive events.