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Version: current [25.x]

Integrating with Amazon S3 and Azure Blob Storage

You can use Fluent Bit to process logs and metrics for Amazon S3 and Azure Blob Storage.

Retrieving from Dremio Cluster​

To upload logs to Amazon S3 or Azure Blob Storage, complete these steps:

  1. Install Fluent Bit on each node of your Dremio cluster.

  2. Create a configuration file in the <FLUENT_BIT_HOME>/etc/fluent-bit directory such as dremio_fluent-bit.conf, using the following example to append the Input sections:

Example for dremio_fluent-bit.conf 

# To learn more about Dremio log files please see the documentation located at
# https://docs.dremio.com/current/sonar/monitoring/#logs

[INPUT]
    # Audit log.
    name             tail
    path             <DREMIO_LOG_PATH>/json/audit.json
    tag              dremio.audit
    multiline.parser java

[INPUT]
    # HTTP access log for the Dremio web server. This log will be generated by coordinator nodes only.
    name             tail
    path             <DREMIO_LOG_PATH>/access.log
    tag              dremio.access
    multiline.parser java

[INPUT]
    # Garbage collection log.
    name             tail
    path             <DREMIO_LOG_PATH>/server.gc
    tag              dremio.server_gc
    multiline.parser java

[INPUT]
    # Server log.
    name             tail
    path             <DREMIO_LOG_PATH>/json/server.json
    tag              dremio.server
    multiline.parser java

[INPUT]
    # Log for Dremio daemon standard out.
    name             tail
    path             <DREMIO_LOG_PATH>/server.out
    tag              dremio.server_out
    multiline.parser java

[INPUT]
    # Metadata refresh log.
    name             tail
    path             <DREMIO_LOG_PATH>/metadata_refresh.log
    tag              dremio.metadata_refresh
    multiline.parser java

[INPUT]
    # Tracker log.
    name             tail
    path             <DREMIO_LOG_PATH>/tracker.json
    tag              dremio.tracker
    multiline.parser java

[INPUT]
    # Query log.
    name             tail
    path             <DREMIO_LOG_PATH>/queries.json
    tag              dremio.query
    multiline.parser java
  1. Configure for Amazon S3 or Azure Blob Storage.

a. For uploading to Amazon S3, append the Output section using the example below and configure the AWS credentials.

Example for Amazon S3 
[OUTPUT]
    name    s3
    match   *
    bucket  <BUCKET>
    region  <AWS_REGION>
    s3_key_format  /$TAG[0]/$TAG[1]/%Y/%m/%d/%H%M%S-$UUID

b. For uploading to Azure Blob Storage, use the following example to append the Output section:

Example for Azure Blob Storage 
[OUTPUT]
    name                  azure_blob
    match                 *
    account_name          <ACCOUNT_NAME>
    shared_key            <SHARED_ACCESS_KEY>
    path                  dremio_logs
    container_name        fluentbit-upload
    auto_create_container on
    tls                   on
  1. Start Fluent Bit. See the following example:
Example of starting Fluent Bit 
fluent-bit -c dremio_fluent-bit.conf

Retrieving from Kubernetes​

When Dremio is deployed on a Kubernetes cluster, all logs are written to the container's console simultaneously.

To upload these logs to Amazon S3 or Azure Blob Storage, complete these steps:

  1. Install Fluent Bit on your Kubernetes cluster.

  2. Create a helm values override file such as dremio-fluentbit.values.yaml.

  3. Configure for Amazon S3 or Azure Blob Storage.

a. For uploading to Amazon S3, append the Output section using the example below and configure the AWS credentials.

config:            
    outputs: |
        [OUTPUT]
            name    s3
            match   *
            bucket  <BUCKET>
            region  <AWS_REGION>
            s3_key_format  /$TAG[0]/$TAG[1]/%Y/%m/%d/%H%M%S-$UUID

b. For uploading to Azure Blob Storage, use the following example to append the Output section:

config:            
    outputs: |
        [OUTPUT]
            name                  azure_blob
            match                 *
            account_name          <ACCOUNT_NAME>
            shared_key            <SHARED_ACCESS_KEY>
            path                  dremio_logs
            container_name        fluentbit-upload
            auto_create_container on
            tls                   on
  1. Upgrade Fluent Bit by running the following command:
helm upgrade --install fluent-bit fluent/fluent-bit -f dremio-fluentbit.values.yaml