This guide shows you how to configure version 2 of Google Cloud's Agent for SAP to collect the SAP HANA monitoring metrics from your SAP HANA systems.
For information about this feature, see Monitoring SAP HANA using Google Cloud's Agent for SAP.
Before you begin
- Validate your installation of Google Cloud's Agent for SAP. For instructions, see the installation guide for your scenario.
- If you have installed the agent on a Bare Metal Solution server, then make sure that you have completed the required prerequisites and set up a service account. For instructions, see Configure Google Cloud's Agent for SAP on Linux.
Set IAM roles
To allow Google Cloud's Agent for SAP collect the SAP HANA Monitoring metrics, you must ensure that the service account being used by your Compute Engine VM instance or Bare Metal Solution server includes the following roles:
- Compute Viewer (
roles/compute.viewer
) - Monitoring Metric Writer (
roles/monitoring.metricWriter
) - Secret Manager Secret Accessor (
roles/secretmanager.secretAccessor
), if you use Secret Manager for storing SAP HANA database password.
To add these required roles to your service account, follow these steps:
In the Google Cloud console, go to the IAM page.
Select your Google Cloud project.
Identify the service account to which you want to add a role.
- If the service account isn't already on the principals list, then it doesn't have any roles assigned to it. Click Add and enter the email address of the service account.
- If the service account is already on the principals list, then it has existing roles. Click the Edit button for the service account that you want to edit.
Select the required role from the list of available roles:
- Compute Viewer
- Monitoring > Monitoring Metric Writer
- Secret Manager > Secret Manager Secret Accessor
Click Add or Save to apply the roles to the service account.
Enable SAP HANA Monitoring metrics collection
To enable the collection of SAP HANA Monitoring metrics using Google Cloud's Agent for SAP, follow these steps:
Establish an SSH connection with your Compute Engine VM instance or Bare Metal Solution server.
Open the agent's configuration file:
/etc/google-cloud-sap-agent/configuration.json
In the
hana_monitoring_configuration
section, perform the following:- For the parameter
enabled
, set the valuetrue
. - In the
hana_instances
section, specify the SAP HANA instances that you want the agent to monitor. - Optionally, define custom queries. For information about defining custom queries and see examples, see Defining custom queries.
Optionally, disable the built-in or default queries. For instructions, see Disable a SQL query.
For information about the configuration parameters, see Configuration parameters.
- For the parameter
Optionally, under the
cloud_properties
section, you can update the parameter values that are set automatically. To do so, add thecloud_properties
section to your configuration file, and then specify the required parameters and their values.Save the configuration file.
Restart the agent for the new settings to take effect:
sudo systemctl restart google-cloud-sap-agent
Example configuration files
Compute Engine VM instance
The following example is a completed configuration file of
Google Cloud's Agent for SAP running on a
Compute Engine VM instance,
where the collection of SAP HANA monitoring metrics is enabled. Note that the
custom query included in this example, named custom_query
,
follows the custom query definition guidelines specified in
Defining custom
queries.
{ "provide_sap_host_agent_metrics": true, "bare_metal": false, "log_level": "INFO", "log_to_cloud": true, "collection_configuration": { "collect_workload_validation_metrics": true, "collect_process_metrics": false }, "cloud_properties": { "project_id": "my-project", "instance_name": "vm-instance-1", "image": "rhel-8" }, "discovery_configuration": { "enable_discovery": true, "enable_workload_discovery": true }, "hana_monitoring_configuration": { "enabled": true, "sample_interval_sec": 60, "query_timeout_sec": 30, "execution_threads": 20, "hana_instances": [ { "name": "local", "sid": "DEH", "host": "localhost", "port": "30015", "user": "system", "secret_name": "password-secret-name" }, { "name": "remote", "sid": "DEH", "host": "10.123.0.12", "port": "30015", "user": "system", "secret_name": "password-secret-name" } ], "queries": [ { "name": "custom_query", "enabled": true, "sql": "SELECT * FROM MyTable;", "columns": [ { "name": "string", "metric_type": "METRIC_LABEL", "value_type": "VALUE_STRING" }, { "name": "bool", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_BOOL" }, { "name": "int", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_INT64" }, { "name": "double", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_DOUBLE" } ] }, { "name": "default_host_queries", "enabled": false } ] } }
Bare Metal Solution server
The following example is a completed configuration file of
Google Cloud's Agent for SAP running on a
Bare Metal Solution server,
where the collection of SAP HANA monitoring metrics is enabled. Note that the
custom query included in this example, named custom_query
,
follows the custom query definition guidelines specified in
Defining custom
queries.
{ "provide_sap_host_agent_metrics": true, "bare_metal": true, "log_level": "INFO", "log_to_cloud": true, "collection_configuration": { "collect_workload_validation_metrics": true, "collect_process_metrics": false }, "cloud_properties": { "project_id": "my-project", "instance_name": "bms-machine-1"
"region": "us-central1", "image": "rhel-8" }, "discovery_configuration": { "enable_discovery": true, "enable_workload_discovery": true }, "hana_monitoring_configuration": { "enabled": true, "sample_interval_sec": 60, "query_timeout_sec": 30, "execution_threads": 20, "hana_instances": [ { "name": "local", "sid": "DEH", "host": "localhost", "port": "30015", "user": "system", "secret_name": "password-secret-name" }, { "name": "remote", "sid": "DEH", "host": "10.123.0.12", "port": "30015", "user": "system", "secret_name": "password-secret-name" } ], "queries": [ { "name": "custom_query", "enabled": true, "sql": "SELECT * FROM MyTable;", "columns": [ { "name": "string", "metric_type": "METRIC_LABEL", "value_type": "VALUE_STRING" }, { "name": "bool", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_BOOL" }, { "name": "int", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_INT64" }, { "name": "double", "metric_type": "METRIC_GAUGE", "value_type": "VALUE_DOUBLE" } ] }, { "name": "default_host_queries", "enabled": false } ] } }
Define a custom SQL query
Google Cloud's Agent for SAP collects the SAP HANA monitoring metrics by running SQL queries on your SAP HANA instances. In addition to these default queries, you can define and run custom SQL queries by completing the following steps:
Establish an SSH connection with your Compute Engine VM instance or Bare Metal Solution server.
Open the agent's configuration file:
/etc/google-cloud-sap-agent/configuration.json
Under the
hana_monitoring_configuration.queries
section, define your custom query.For information about defining custom queries and see examples, see Defining custom queries.
To enable a custom query, set its
enabled
parameter totrue
.Save the configuration file.
Restart the agent for the new settings to take effect:
sudo systemctl restart google-cloud-sap-agent
Disable a SQL query
If you don't want to run any of the built-in SQL queries that Google Cloud's Agent for SAP provides by default, or any of the custom queries that you define, then you can disable the SQL query by completing the following steps:
Establish an SSH connection with your Compute Engine VM instance or Bare Metal Solution server.
Open the agent's configuration file:
/etc/google-cloud-sap-agent/configuration.json
To disable a built-in or default query, include the following under the
hana_monitoring_configuration.queries
section:{ "name": "default_QUERY_NAME", "enabled": false }
Replace
QUERY_NAME
with the name of the default query. For information about the default queries, see Default query reference.To disable a custom query, set the
enabled
parameter tofalse
for that custom query.Save the configuration file.
Restart the agent for the new settings to take effect:
sudo systemctl restart google-cloud-sap-agent
Configuration parameters
The following table explains the configuration parameters of Google Cloud's Agent for SAP that are specific to the collection of the SAP HANA Monitoring metrics.
Parameters | |
---|---|
provide_sap_host_agent_metrics |
To enable the collection of the metrics required by the
SAP Host Agent, specify |
bare_metal |
When the agent is installed on a Bare Metal Solution server, specify
|
log_level |
To set the logging level of the agent, set the required value. The available log levels are as follows:
Default is |
log_to_cloud |
To redirect the agent's logs to
Cloud Logging, specify
|
sap_system_discovery |
To enable the SAP system discovery, specify |
cloud_properties.project_id |
If your SAP system is running on a Bare Metal Solution server, then
specify the project ID of the Google Cloud project that you are
using with Bare Metal Solution. |
cloud_properties.instance_name
|
If your SAP system is running on a Compute Engine VM instance, then specify the name that VM instance. The agent automatically detects the VM instance name upon installation. If your SAP system is running on a Bare Metal Solution server, then
specify the name of that server. In agent version 2.5 or earlier, specify
the Bare Metal Solution server name for the property
|
cloud_properties.region |
If your SAP system is running on a Bare Metal Solution server,
then specify the region of the Bare Metal Solution server. |
cloud_properties.zone |
When the agent runs on a VM instance, by default, the agent uses the zone of the VM instance that the agent is installed on. |
cloud_properties.image |
Specify the OS image name of the instance. |
cloud_properties.numeric_project_id |
Specify the numeric ID of the Google Cloud project that the SAP system
is running in. |
hana_monitoring_configuration.enabled |
Optional. To enable Google Cloud's Agent for SAP to collect the SAP HANA
monitoring metrics, specify hana_monitoring_configuration.enabled: true .
|
hana_monitoring_configuration.sample_interval_sec |
Optional. Specify the sample interval, in seconds, which determines the frequency at which Google Cloud's Agent for SAP queries your SAP HANA instances to collect the SAP HANA monitoring metrics. The default value is 300 seconds. For each query defined in the configuration file of
Google Cloud's Agent for SAP, you can overwrite the global sample interval
by specifying the required interval to the parameter
|
hana_monitoring_configuration.query_timeout_sec |
Optional. Specify the timeout for each query made to the SAP HANA instances. The default value is 300 seconds. |
hana_monitoring_configuration.execution_threads |
Optional. Specify the number of threads used to send queries to the SAP HANA instances. Each query runs on its own thread. The default value is 10. |
hana_monitoring_configuration.hana_instances.name |
Specify the name identifier for your SAP HANA instance. |
hana_monitoring_configuration.hana_instances.sid |
Specify the SID of your SAP HANA instance. This string is added as a label to all the metrics resulting from querying your SAP HANA instances. |
hana_monitoring_configuration.hana_instances.host |
Specify the identifier for the machine, either local or remote, that hosts your SAP HANA instance. The following are the supported values:
|
hana_monitoring_configuration.hana_instances.port |
Specify the port on which your SAP HANA instance accepts queries. For
the first or only tenant database instance, the port is
|
hana_monitoring_configuration.hana_instances.user |
Specify the user account that is used to query the SAP HANA instance. Make sure that this user has the privilege to read the monitoring views in your SAP HANA database. If this privilege is not granted, then the SAP HANA monitoring metrics related to the monitoring views contain no data. |
hana_monitoring_configuration.hana_instances.password |
Optional. Specify the password, as plain text, that authenticates the user account for querying the SAP HANA instance. For authentication, you must specify one of the following:
|
hana_monitoring_configuration.hana_instances.secret_name |
Optional. Specify the name of the secret in Secret Manager that stores the user account's password. |
hana_monitoring_configuration.hana_instances.enable_ssl |
Optional. Specifies whether or not SSL is enabled in your SAP HANA
instance. The default value is |
hana_monitoring_configuration.hana_instances.host_name_in_certificate |
If you specify |
hana_monitoring_configuration.hana_instances.tls_root_ca_file |
If you specify |
hana_monitoring_configuration.queries.enabled |
Optional. To enable a SQL query for all your SAP HANA instances,
specify the value |
hana_monitoring_configuration.queries.name |
If you have defined custom queries in your configuration file, then you must specify a unique name for each custom query. The query name must be unique because it is used to build the metric's default URL in Monitoring. |
hana_monitoring_configuration.queries.sql |
Specify the SQL statement that the agent issues to your SAP HANA instances. The SQL statement must conform to the SQL syntax defined by SAP in SAP HANA SQL and System Views Reference. |
hana_monitoring_configuration.queries.sample_interval_sec |
Optional. Specify the sample interval for the SQL query. This overrides the global sample interval. The value must be 5 seconds or longer. |
hana_monitoring_configuration.queries.columns.name |
Specify a name that uniquely identifies each column. The column name must be unique because it is used to build the metric's default URL in Monitoring. |
hana_monitoring_configuration.queries.columns.metric_type |
For handling by Monitoring, specify one of the following
metric types: Metrics of type |
hana_monitoring_configuration.queries.columns.value_type |
For handling by Monitoring, specify a data type that is supported by the metric type. The supported data types are as follows: |
hana_monitoring_configuration.queries.columns.name_override |
Optional. For handling by Monitoring, specify the path that you want to show in the metric URL instead of the query and column names. For example:
|
View the collected metrics
To visualize the SAP HANA Monitoring metrics that the agent collects, you can use the following custom dashboards that Google Cloud provides:
Agent for SAP - Detailed HANA Overview: This dashboard provides charts that display status overview for the following metrics: Instance memory, service memory used, schema estimated maximum memory, rowstore memory total size, schema read outliers, schema write outliers, schema last compressed record count outliers, system connections, alerts, CPU percentage for the top 5 VMs, memory percentage for the top 5 VMs, and the hosts by region.
The JSON file for this dashboard is
agent-for-sap-hana-detailed-overview.json
.Agent for SAP - HANA performance: This dashboard provides charts that display raw metric values for the following metrics: Instance memory, schema read and write outliers, schema performance, memory usage, schema record count outliers, service total memory used, rowstore memory size, system idle and running connections, connection and rowstore memory, schema total records, and the schema estimated maximum total size.
The JSON file for this dashboard is
agent-for-sap-hana-performance.json
.
Install dashboards
To install a custom dashboard, complete the following steps:
Google Cloud console
In the Google Cloud console, go to the Monitoring page:
In the Monitoring navigation panel, click Dashboards.
Click the Sample library tab.
To filter the agent-specific custom dashboards, in the Filter field, type
Agent for SAP
.(Optional) To view details about a dashboard or to preview its contents, click Preview.
Select the dashboard that you want to install.
Click Import, and then click Confirm.
The dashboard is added to the available dashboards in your Google Cloud project. To see your dashboard, follow the instructions in View the installed dashboard.
Google Cloud CLI
Open the Cloud Shell:
In the Cloud Shell, clone or download the repository:
git clone https://github.com/GoogleCloudPlatform/monitoring-dashboard-samples/
In the Cloud Shell, install the required dashboard using the corresponding JSON file:
gcloud monitoring dashboards create --config-from-file=CONFIG_FROM_FILE
Replace
CONFIG_FROM_FILE
with the path to the JSON file that contains the dashboard configuration. Dashboard configuration files can be located at path:monitoring-dashboard-samples/dashboards/google-cloud-agent-for-sap
.The dashboard is added to the available dashboards in your Google Cloud project. To see your dashboard, follow the instructions in View the installed dashboard.
View the installed dashboards
To view the installed dashboards, follow these steps:
In the Google Cloud console, go to the Monitoring page:
In the Monitoring navigation panel, click Dashboards.
Click the dashboard name in the list.
If you have a lot of dashboards, then you can filter for custom dashboards or for the name of the new dashboard. For information on filtering this list, see View custom dashboards.
The following image is an example that shows a part of the custom dashboard for SAP HANA metrics in Monitoring.