103 lines
8.8 KiB
Markdown
103 lines
8.8 KiB
Markdown
---
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layout: default
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title: Configuring Data Prepper
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parent: Managing Data Prepper
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nav_order: 5
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redirect_from:
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- /clients/data-prepper/data-prepper-reference/
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- /monitoring-plugins/trace/data-prepper-reference/
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---
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# Configuring Data Prepper
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You can customize your Data Prepper configuration by editing the `data-prepper-config.yaml` file in your Data Prepper installation. The following configuration options are independent from pipeline configuration options.
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## Data Prepper configuration
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Use the following options to customize your Data Prepper configuration.
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Option | Required | Type | Description
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:--- | :--- |:--- | :---
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ssl | No | Boolean | Indicates whether TLS should be used for server APIs. Defaults to true.
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keyStoreFilePath | No | String | The path to a .jks or .p12 keystore file. Required if `ssl` is true.
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keyStorePassword | No | String | The password for keystore. Optional, defaults to empty string.
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privateKeyPassword | No | String | The password for a private key within keystore. Optional, defaults to empty string.
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serverPort | No | Integer | The port number to use for server APIs. Defaults to 4900.
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metricRegistries | No | List | The metrics registries for publishing the generated metrics. Currently supports Prometheus and Amazon CloudWatch. Defaults to Prometheus.
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metricTags | No | Map | A map of key-value pairs as common metric tags to metric registries. The maximum number of pairs is three. Note that `serviceName` is a reserved tag key with `DataPrepper` as the default tag value. Alternatively, administrators can set this value through the environment variable `DATAPREPPER_SERVICE_NAME`. If `serviceName` is defined in `metricTags`, that value overwrites those set through the above methods.
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authentication | No | Object | The authentication configuration. Valid option is `http_basic` with `username` and `password` properties. If not defined, the server does not perform authentication.
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processorShutdownTimeout | No | Duration | The time given to processors to clear any in-flight data and gracefully shut down. Default is 30s.
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sinkShutdownTimeout | No | Duration | The time given to sinks to clear any in-flight data and gracefully shut down. Default is 30s.
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peer_forwarder | No | Object | Peer forwarder configurations. See [Peer forwarder options](#peer-forwarder-options) for more details.
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circuit_breakers | No | [circuit_breakers](#circuit-breakers) | Configures a circuit breaker on incoming data.
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### Peer forwarder options
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The following section details various configuration options for peer forwarder.
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#### General options for peer forwarding
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Option | Required | Type | Description
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:--- | :--- | :--- | :---
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port | No | Integer | The peer forwarding server port. Valid options are between 0 and 65535. Defaults is 4994.
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request_timeout | No | Integer | The request timeout for the peer forwarder HTTP server in milliseconds. Default is 10000.
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server_thread_count | No | Integer | The number of threads used by the peer forwarder server. Default is 200.
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client_thread_count | No | Integer | The number of threads used by the peer forwarder client. Default is 200.
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max_connection_count | No | Integer | The maximum number of open connections for the peer forwarder server. Default is 500.
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max_pending_requests | No | Integer | The maximum number of allowed tasks in ScheduledThreadPool work queue. Default is 1024.
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discovery_mode | No | String | The peer discovery mode to use. Valid options are `local_node`, `static`, `dns`, or `aws_cloud_map`. Defaults to `local_node`, which processes events locally.
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static_endpoints | Conditionally | List | A list containing endpoints of all Data Prepper instances. Required if `discovery_mode` is set to static.
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domain_name | Conditionally | String | A single domain name to query DNS against. Typically, used by creating multiple DNS A Records for the same domain. Required if `discovery_mode` is set to dns.
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aws_cloud_map_namespace_name | Conditionally | String | Cloud Map namespace when using AWS Cloud Map service discovery. Required if `discovery_mode` is set to `aws_cloud_map`.
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aws_cloud_map_service_name | Conditionally | String | The Cloud Map service name when using AWS Cloud Map service discovery. Required if `discovery_mode` is set to `aws_cloud_map`.
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aws_cloud_map_query_parameters | No | Map | A map of key-value pairs to filter the results based on the custom attributes attached to an instance. Only instances that match all the specified key-value pairs are returned.
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buffer_size | No | Integer | The maximum number of unchecked records the buffer accepts. Number of unchecked records is the sum of the number of records written into the buffer and the num of in-flight records not yet checked by the Checkpointing API. Default is 512.
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batch_size | No | Integer | The maximum number of records the buffer returns on read. Default is 48.
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aws_region | Conditionally | String | The AWS region to use with ACM, S3 or AWS Cloud Map. Required if `use_acm_certificate_for_ssl` is set to true or `ssl_certificate_file` and `ssl_key_file` is AWS S3 path or `discovery_mode` is set to `aws_cloud_map`.
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drain_timeout | No | Duration | The wait time for the peer forwarder to complete processing data before shutdown. Default is `10s`.
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#### TLS/SSL options for peer forwarder
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Option | Required | Type | Description
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:--- | :--- | :--- | :---
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ssl | No | Boolean | Enables TLS/SSL. Default is `true`.
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ssl_certificate_file | Conditionally | String | The SSL certificate chain file path or AWS S3 path. S3 path example `s3://<bucketName>/<path>`. Required if `ssl` is true and `use_acm_certificate_for_ssl` is false. Defaults to `config/default_certificate.pem` which is the default certificate file. Read more about how the certificate file is generated [here](https://github.com/opensearch-project/data-prepper/tree/main/examples/certificates).
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ssl_key_file | Conditionally | String | The SSL key file path or AWS S3 path. S3 path example `s3://<bucketName>/<path>`. Required if `ssl` is true and `use_acm_certificate_for_ssl` is false. Defaults to `config/default_private_key.pem` which is the default private key file. Read more about how the default private key file is generated [here](https://github.com/opensearch-project/data-prepper/tree/main/examples/certificates).
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ssl_insecure_disable_verification | No | Boolean | Disables the verification of server's TLS certificate chain. Default is false.
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ssl_fingerprint_verification_only | No | Boolean | Disables the verification of server's TLS certificate chain and instead verifies only the certificate fingerprint. Default is false.
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use_acm_certificate_for_ssl | No | Boolean | Enables TLS/SSL using certificate and private key from AWS Certificate Manager (ACM). Default is false.
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acm_certificate_arn | Conditionally | String | The ACM certificate ARN. The ACM certificate takes preference over S3 or a local file system certificate. Required if `use_acm_certificate_for_ssl` is set to true.
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acm_private_key_password | No | String | The ACM private key password that decrypts the private key. If not provided, Data Prepper generates a random password.
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acm_certificate_timeout_millis | No | Integer | The timeout in milliseconds for ACM to get certificates. Default is 120000.
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aws_region | Conditionally | String | The AWS region to use ACM, S3 or AWS Cloud Map. Required if `use_acm_certificate_for_ssl` is set to true or `ssl_certificate_file` and `ssl_key_file` is AWS S3 path or `discovery_mode` is set to `aws_cloud_map`.
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#### Authentication options for peer forwarder
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Option | Required | Type | Description
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:--- | :--- | :--- | :---
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authentication | No | Map | The authentication method to use. Valid options are `mutual_tls` (use mTLS) or `unauthenticated` (no authentication). Default is `unauthenticated`.
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### Circuit breakers
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Data Prepper provides a circuit breaker to help prevent exhausting Java memory. And is useful when pipelines have stateful processors as these can retain memory usage outside of the buffers.
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When a circuit breaker is tripped, Data Prepper rejects incoming data routing into buffers.
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Option | Required | Type | Description
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:--- | :--- |:---| :---
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heap | No | [heap](#heap-circuit-breaker) | Enables a heap circuit breaker. By default, this is not enabled.
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#### Heap circuit breaker
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Configures Data Prepper to trip a circuit breaker when JVM heap reaches a specified usage threshold.
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Option | Required | Type | Description
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:--- |:---|:---| :---
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usage | Yes | Bytes | Specifies the JVM heap usage at which to trip a circuit breaker. If the current Java heap usage exceeds this value then the circuit breaker will be open. This can be a value such as `6.5gb`.
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reset | No | Duration | After tripping the circuit breaker, no new checks are made until after this time has passed. This effectively sets the minimum time for a breaker to remain open to allow for clearing memory. Defaults to `1s`.
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check_interval | No | Duration | Specifies the time between checks of the heap size. Defaults to `500ms`.
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