MID Server and MID Server distributed cluster for Metric Intelligence

  • Release version: Washingtondc
  • Updated February 1, 2024
  • 3 minutes to read
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    Summary of MID Server and MID Server Distributed Cluster for Metric Intelligence

    To effectively use Metric Intelligence, at least one MID Server distributed cluster is required, which must include a MID Server configured specifically for Metric Intelligence. This configuration supports optimal data processing and anomaly detection, essential for maintaining system integrity and performance.

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    Key Features

    • Single MID Server Requirement: A single MID Server must be part of the distributed cluster to support Metric Intelligence.
    • Virtual Machine Limitation: Only one MID Server can run on a virtual machine that supports Metric Intelligence.
    • Anomaly Detection: The MID Server processes data and transmits information about detected anomalies to the instance immediately.
    • Configuration Settings: Each MID Server must be configured to support Metric Intelligence, including memory and processor specifications.
    • Domain Support: If Domain Support is activated, metrics are processed based on the domain of the business service.

    Key Outcomes

    By ensuring your MID Server is properly configured and meets the specified hardware and software requirements, you can expect:

    • Efficient processing of up to 1.7 million metrics with the appropriate MID Server specifications.
    • Protection against data overload through an enabled throttling mechanism, ensuring data integrity.
    • Improved monitoring and detection of anomalies, leading to timely insights and actions.

    Maintain your MID Server's operational status and validate its configuration regularly to maximize performance and reliability.

    Using Metric Intelligence requires at least one MID Server distributed cluster which contains a single MID Server that is configured for Metric Intelligence.

    When using a single Metric Intelligence MID Server, that server must be added to a MID Server distributed cluster.

    To support the specified throughput, create a distributed cluster with a single MID Server that meets the Metric Intelligence MID Server requirements. When using a virtual machine (VM), only a single MID Server can run that supports Metric Intelligence. When working with Agent Client Collector, a MID Server can also be connected to multiple agents (ACC-M and ACC-L).

    A MID Server supporting Discovery can also be used with other applications.

    For details on setting up Metric Intelligence, see Get started with Metric Intelligence.

    MID Server distributed clusters

    Activating Metric Intelligence (com.snc.sa.metric), automatically activates MID Server distributed cluster (com.snc.agent.distributed.cluster). A MID Server distributed cluster supports the Distributed MID Server cluster type which is used exclusively with Metric Intelligence.

    If automatic creation of a MID Server distributed cluster fails, you can configure the cluster manually. For details, contact Customer Support.

    Metric Intelligence MID Server

    The Metric Intelligence MID Server supports the Metric Intelligence feature by processing data and detecting anomalies. The MID Server transmits batches of processed data to the instance. If an anomaly is detected, then information about the anomaly along with the raw data is sent immediately to the instance.

    Each Metric Intelligence MID Server must be configured with the following settings:
    • Metric Intelligence as a supported application
    • The Metrics capability
    • Running the Metric Intelligence Metrics extension

    The Metric Intelligence application that the Metric Intelligence MID Server is configured with enables you to add additional supported applications to the same MID Server. By default, Metric Intelligence is included in the definition of the MID Server ALL option. For information about modifying the behavior of the ALL option when selecting supported applications, see Configure applications included in ALL Applications.

    If Domain Support - Domain Extensions Installer is activated, then you can configure a MID Server with the Metrics capability, per domain. In this case, metrics for a business service are processed on the MID Server that is in the same domain as the business service. Otherwise, a MID Server from the global domain is used.

    Ensure that the MID Server that you want to configure for Metric Intelligence:
    • Is validated. For more information, see Validate a MID Server
    • Is in running state
    • Meets all software, hardware, and configuration requirements
    Table 1. Hardware requirements for the virtual machine/host on which the MID Server runs (scaled for 5000 CIs with 100 metrics per CI)
    Requirement
    One MID Server with:
    • Memory: 12 GB
    • Processor: 4 cores
    		 Supports approximately up to a total of 1.2 million metrics (12,000 CIs with 100 metrics per CI).
    One MID Server with:
    • Memory: 24 GB
    • Processor: 8 cores
    		 Supports approximately up to a total of 1.7 million metrics (17,000 CIs with 100 metrics per CI).
    Table 2. Software requirements
    Software Supported versions Additional requirements
    Windows 32-bit and 64-bit versions:
    • Windows 2008 R2
    • Windows Server 2012 R2
    • Windows Server 2019
    		 32-bit or 64-bit version of the MID Server
    Linux
    • Red Hat Enterprise Edition Linux 6.6 or later
    • CentOS Linux 6.6 or later
    		 32-bit or 64-bit version of the MID Server
    Table 3. Configuration requirements
    Configuration Requirement
    MID Server service logon user (required only for pulling) Must be set to a user with read access to the SCOM database (OperationsManagerDW).
    1. On the MID Server, open the MID Server Properties dialog box.
    2. Click the Log On tab.
    3. Select This account, and enter credentials for a user with the required access.
    4. Click Apply.

    MID Server throttling mechanism

    The MID Server throttling mechanism protects against data bursts to the instance. Data burst protection prevents overloading the instance, while ensuring that you do not lose any data.

    The MID Server throttling mechanism is enabled by default. You may want to disable this mechanism when troubleshooting, to ensure that the mechanism is not causing system malfunction.
    • To disable this feature for metrics, set the mid.oi.metric_token_bucket_enabled parameter to false.
    • To disable this feature for anomalies, set the mid.oi.anomaly_token_bucket_enabled parameter to false.

    Configuration Override

    Update the wrapper-override.conf file in folder ../agent/conf:
    • Add the following code at the bottom of the file:
       
# GC
wrapper.java.additional.5=-XX:+AlwaysPreTouch
wrapper.java.additional.6=-XX:+UseG1GC
wrapper.java.additional.7=-XX:+ScavengeBeforeFullGC
wrapper.java.additional.8=-XX:+DisableExplicitGC
 
# IP4
wrapper.java.additional.9=-DpreferIPv4Stack=true
    • Ensure that wrapper.java.initmemory=1024 (or higher) and wrapper.java.maxmemory=4096 (or higher) for Metric Intelligence to run properly.
    • Optionally, if a server has additional RAM available, for example 16 GB RAM, you can replace 4096 with 8192 in: wrapper.java.maxmemory=4096.