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opensearch-docs-cn/_data-prepper/configuration/data-prepper-configuration.md

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default Configuring Data Prepper true 100
/clients/data-prepper/data-prepper-reference/

Configuring Data Prepper

This is the reference for Data Prepper configuration files (data-prepper-config.yaml). These are general Data Prepper configurations independent from pipelines.

Data Prepper server options

Option Required Type Description
ssl No Boolean Indicates whether TLS should be used for server APIs. Defaults to true.
keyStoreFilePath No String Path to a .jks or .p12 keystore file. Required if ssl is true.
keyStorePassword No String Password for keystore. Optional, defaults to empty string.
privateKeyPassword No String Password for private key within keystore. Optional, defaults to empty string.
serverPort No Integer Port number to use for server APIs. Defaults to 4900.
metricRegistries No List Metrics registries for publishing the generated metrics. Currently supports Prometheus and CloudWatch. Defaults to Prometheus.
metricTags No Map 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 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.
authentication No Object Authentication configuration. Valid option is http_basic with username and password properties. If not defined, the server does not perform authentication.
processorShutdownTimeout No Duration Time given to processors to clear any in-flight data and gracefully shutdown. Default is 30s.
sinkShutdownTimeout No Duration Time given to sinks to clear any in-flight data and gracefully shutdown. Default is 30s.
peer_forwarder No Object Peer forwarder configurations. See Peer forwarder options for more details.

Peer forwarder options

The following section details various configuration options for peer forwarder.

General options for peer forwarder

Option Required Type Description
port No Integer The port number peer forwarder server is running on. Valid options are between 0 and 65535. Defaults is 4994.
request_timeout No Integer Request timeout in milliseconds for peer forwarder HTTP server. Default is 10000.
server_thread_count No Integer Number of threads used by peer forwarder server. Default is 200.
client_thread_count No Integer Number of threads used by peer forwarder client. Default is 200.
max_connection_count No Integer Maximum number of open connections for peer forwarder server. Default is 500.
max_pending_requests No Integer Maximum number of allowed tasks in ScheduledThreadPool work queue. Default is 1024.
discovery_mode No String Peer discovery mode to use. Valid options are local_node, static, dns, or aws_cloud_map. Defaults to local_node, which processes events locally.
static_endpoints Conditionally List A list containing endpoints of all Data Prepper instances. Required if discovery_mode is set to static.
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.
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.
aws_cloud_map_service_name Conditionally String Cloud Map service name when using AWS Cloud Map service discovery. Required if discovery_mode is set to aws_cloud_map.
aws_cloud_map_query_parameters No Map 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.
buffer_size No Integer Max 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.
batch_size No Integer Max number of records the buffer returns on read. Default is 48.
aws_region Conditionally String 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.
drain_timeout No Duration Wait time for the peer forwarder to complete processing data before shutdown. Default is 10s.

TLS/SSL options for peer forwarder

Option Required Type Description
ssl No Boolean Enables TLS/SSL. Default is true.
ssl_certificate_file Conditionally String 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.
ssl_key_file Conditionally String 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.
ssl_insecure_disable_verification No Boolean Disables the verification of server's TLS certificate chain. Default is false.
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.
use_acm_certificate_for_ssl No Boolean Enables TLS/SSL using certificate and private key from AWS Certificate Manager (ACM). Default is false.
acm_certificate_arn Conditionally String 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.
acm_private_key_password No String ACM private key password that decrypts the private key. If not provided, Data Prepper generates a random password.
acm_certificate_timeout_millis No Integer Timeout in milliseconds for ACM to get certificates. Default is 120000.
aws_region Conditionally String 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.

Authentication options for peer forwarder

Option Required Type Description
authentication No Map Authentication method to use. Valid options are mutual_tls (use mTLS) or unauthenticated (no authentication). Default is unauthenticated.