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Metrics

Metrics refers to the piece of data that is tracked by NetScaler. Metrics provide meaningful insights and is useful to track the health of NetScaler and the applications handled by NetScaler.

A time series is a sequence of sequential data points that occur over a particular interval of time. NetScaler supports configuring the analytics time series profile to send metrics to a service.

Configure metrics

You can enable metrics on NetScaler to collect and export metrics from NetScaler to various endpoints. You can export metrics in the following formats: Avro, Prometheus, and JSON. The exported metrics can be processed and visualized to get meaningful insights. By default, metrics supports the export of time-series analytics data every 30 seconds. However, you can configure it to a value between 30 to 300 seconds as per your requirement.

Do the following to configure a metrics using the NetScaler CLI.

  1. Configure a service with IP address, protocol, and port using the following command:

    add service <metrics_service_name> <ip-address> <protocol> <port>
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    Example:

    add service metrics_service1 192.168.1.1 HTTP 5563
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  2. Configure the analytics time series profile to send metrics to the service. Specify the service, frequency for exporting metrics, and output mode.

    set analytics profile ns_analytics_time_series_profile -collectors <metrics_service_name> -type timeseries -metrics ENABLED metricsExportFrequency <30-300> -outputMode <avro/prometheus>
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    Example:

    set analytics profile ns_analytics_time_series_profile -collectors metrics_service1 -type timeseries -metrics Enabled metricsExportFrequency 90 -outputMode prometheus --serveMode PUSH
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    Note:

    This example uses the default time series profile ns_analytics_time_series_profile. If you want to create a time series profile, you can use the add analytics profile command.

    In this example, metrics export frequency is set as 90 seconds and export mode is specified as Prometheus.

    Verify the metrics configuration using the show analytics profile <analytics-profile-name> command:

    show analytics profile ns_analytics_time_series_profile
    
        Name: ns_analytics_time_series_profile
        Collector: metrics_service1
        Profile-type: timeseries
            Output Mode: Prometheus
            Metrics: ENABLED
                Schema File: schema.json
                Metrics Export Frequency: 90
            Events: DISABLED
            Auditlog: DISABLED
            Serve mode: Pull
        Reference Count: 0
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Metrics file generation

The metrics_<format>_log.* files are generated under the /var/nslog/ folder location.

Dynamic schema support

Starting from NetScaler release 13.1 build 24.38, dynamic schema counters are supported. With the support of dynamic schema counters, a schema file containing a list of counters can be updated at run time based on the requirement. By default, /var/metrics_conf/schema.json file is configured with a list of counters.

Note:

  • The metrics default schema file /var/metrics_conf/schema.json can be installed on a NetScaler appliance by installns procedure. For information on installns procedure, see Upgrade and downgrade a NetScaler appliance.
  • Default schema file /var/metrics_conf/schema.json consists of a few entities and counters that are not part of reference_schema.json. These counters are retained in schema.json for backward compatibility reasons because they were part of the older version of metrics which supported static schema.

Configure the metrics to subscribe counters using the CLI

Start the metrics export by configuring a service.

At the command prompt, type:


set analytics profile ns_analytics_time_series_profile -metrics ENABLED -collectors <collector_name> -schemaFile  schema.json -outputMode <avro | prometheus>

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Note:

schema.json is the default schemaFile configuration.

A new schema file with a required set of counters can be configured using the CLI command for the metrics to export. The schema file must be present at the /var/metrics_conf/ location.

The schema file containing all the list of counters (reference_schema.json) supported by stats infra is present in the /var/metrics_conf/ location. This file can be used as a reference to build a custom list of counters.

Configure a schema file using the CLI

set analytics profile ns_analytics_time_series_profile -metrics ENABLED -collectors <collector name> -schemaFile <schema file_name> -outputMode <avro | prometheus>

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A new schema file with the required counters can be added and configured using the preceding CLI command for metrics to export.

The reference schema file with all the list of counters (reference_schema.json) supported by stats infra are present in /var/metrics_conf/ location. This file can be used as a reference to build a custom list of counters.

Check the CLI configuration output at the command prompt:


show analytics profile ns_analytics_time_series_profile

    Name: ns_analytics_time_series_profile
    Collector: <collector_name>
    Profile-type: timeseries
    Output Mode: avro
    Metrics: ENABLED
    Schema File: schema.json
    Events: ENABLED
    Auditlog: DISABLED
    Serve mode: Push
    Reference Count: 0

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Steps to update the list of counters exported

Perform the following steps to update the list of exported counters:

  1. Update the custom/new schema file.
  2. Disable and enable metrics using the -metrics option shown in the CLI configuration for the updated schema file to be used.

Multiple time-series profile support

Starting from NetScaler release 13.1 build 33.47, up to three time-series profile configurations are supported on NetScaler.

You can configure each time series to have the following:

  • Collector.

  • Schema file containing the required set of counters to be exported.

  • The data format in which the metrics are to be exported.

  • The option to enable or disable metrics audit logs and events.

With the multiple time-series profile support, the metrics can simultaneously export a different set (based on the schema file configured) of metrics to different collectors in different formats (Avro, Prometheus, Influx).

Note:

Even though metrics can be enabled on all the configured time-series profiles, events and audit logs can be enabled only on one profile.

Add time-series profile using the CLI

At the command prompt, type:

add analytics profile <profile_name> -type timeseries
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Configure time-series profile using the CLI

At the command prompt, type:

set analytics profile <profile_name> -metrics <DISABLED|ENABLED> -auditlogs <DISABLED|ENABLED> -events <DISABLED|ENABLED> -collectors <collector_name> -schemaFile schema.json -outputMode <avro | influx | prometheus>

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Log file-naming conventions with multiple time-series profile support

  • Avro log files are generated as metrics_avro_<profile_name>_log.*.
  • Prometheus log files are generated as metrics_prom_<profile_name>.log.

Configure use-case specific metrics export

You can export only the metrics related to a specific use case by creating a schema file. For example, if you want to view only TCP traffic related metrics, then you can create a tcptrafficschema.json file to export only the metrics related to TCP traffic. With the use case specific metrics export, finding the metrics that you want becomes easier.

NetScaler supports exporting metrics for the following use cases:

  • Virtual server
  • Application security
  • SSL traffic
  • TCP traffic
  • HTTP traffic
  • System overview

Virtual server

To view only virtual server related metrics perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, vserver_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile vserver_metrics.json
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  3. Add the following content and save the changes:

    {
        "server_svc_cfg":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_cur_Clients","rate":"False"},
            {"name":"si_cur_Servers","rate":"False"}
        ],
        "server_serviceGroup":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_cur_Clients","rate":"False"},
            {"name":"si_cur_Servers","rate":"False"}
        ],
        "vserver_authn":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_cr":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_cs":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_cur_Clients","rate":"False"},
            {"name":"si_cur_Servers","rate":"False"}
        ],
        "gslb_server":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "gslb_vserver":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "server_gslb_serviceGroup":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_lb":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_cur_Clients","rate":"False"},
            {"name":"si_cur_Servers","rate":"False"}
        ],
        "vserver_vpn":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_user":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_cur_Clients","rate":"False"},
            {"name":"si_cur_Servers","rate":"False"}
        ]
    }
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Application security

To view only application security related metrics, perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, appsec_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile appsec_metrics.json
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  3. Add the following content and save the changes:

    {
        "netscaler":
        [
            {"name":"as_viol_starturl","rate":"True"},
            {"name":"as_viol_denyurl","rate":"True"},
            {"name":"as_viol_referer_header","rate":"True"},
            {"name":"as_viol_bufferoverflow","rate":"True"},
            {"name":"as_viol_grpc","rate":"True"},
            {"name":"as_viol_postbodylimit","rate":"True"},
            {"name":"as_viol_cookie","rate":"True"},
            {"name":"as_viol_cookie_hijack","rate":"True"},
            {"name":"as_viol_csrf_tag","rate":"True"},
            {"name":"as_viol_xss","rate":"True"},
            {"name":"as_viol_sql","rate":"True"},
            {"name":"as_viol_fldfmt","rate":"True"},
            {"name":"as_viol_fldconsistency","rate":"True"},
            {"name":"as_viol_fileuploadtypes","rate":"True"},
            {"name":"as_viol_infer_ctype_xml","rate":"True"},
            {"name":"as_viol_safecommerce","rate":"True"},
            {"name":"as_viol_safeobject","rate":"True"},
            {"name":"as_viol_signature","rate":"True"},
            {"name":"as_viol_content_type","rate":"True"},
            {"name":"as_viol_cmd","rate":"True"},
            {"name":"as_viol_json_dos","rate":"True"},
            {"name":"as_viol_json_sql","rate":"True"},
            {"name":"as_viol_json_xss","rate":"True"},
            {"name":"as_viol_json_cmd","rate":"True"},
            {"name":"as_viol_sql_gram","rate":"True"},
            {"name":"as_viol_json_sql_gram","rate":"True"},
            {"name":"as_viol_sql_comb","rate":"True"},
            {"name":"as_viol_xxe_comb","rate":"True"},
            {"name":"as_viol_xss_comb","rate":"True"},
            {"name":"as_viol_owasp_comb","rate":"True"},
            {"name":"as_viol_cmd_gram","rate":"True"},
            {"name":"as_viol_json_cmd_gram","rate":"True"},
            {"name":"as_viol_block_keyword","rate":"True"},
            {"name":"as_viol_json_blockkeyword","rate":"True"},
            {"name":"as_Requests","rate":"False"},
            {"name":"http_tot_Requests","rate":"True"},
            {"name":"http_tot_Requests1_0","rate":"True"},
            {"name":"http_tot_Requests1_1","rate":"True"},
            {"name":"as_sig_num_viols","rate":"True"}
        ],
        "appfw__":
        [
            {"name":"as_viol_starturl_profile","rate":"True"},
            {"name":"as_viol_denyurl_profile","rate":"True"},
            {"name":"as_viol_referer_header_profile","rate":"True"},
            {"name":"as_viol_bufferoverflow_profile","rate":"True"},
            {"name":"as_viol_postbodylimit_profile","rate":"True"},
            {"name":"as_viol_cookie_profile","rate":"True"},
            {"name":"as_viol_cookie_hijack_profile","rate":"True"},
            {"name":"as_viol_csrf_tag_profile","rate":"True"},
            {"name":"as_viol_xss_profile","rate":"True"},
            {"name":"as_viol_sql_profile","rate":"True"},
            {"name":"as_viol_fldfmt_profile","rate":"True"},
            {"name":"as_viol_fldconsistency_profile","rate":"True"},
            {"name":"as_viol_safecommerce_profile","rate":"True"},
            {"name":"as_viol_safeobject_profile","rate":"True"},
            {"name":"as_viol_signature_profile","rate":"True"},
            {"name":"as_viol_content_type_profile","rate":"True"},
            {"name":"as_viol_json_dos_profile","rate":"True"},
            {"name":"as_viol_json_sql_profile","rate":"True"},
            {"name":"as_viol_json_xss_profile","rate":"True"},
            {"name":"as_viol_json_cmd_profile","rate":"True"},
            {"name":"as_viol_fileuploadtypes_profile","rate":"True"},
            {"name":"as_viol_infer_ctype_xml_profile","rate":"True"},
            {"name":"as_viol_cmd_profile","rate":"True"},
            {"name":"as_viol_sql_gram_profile","rate":"True"},
            {"name":"as_viol_json_sql_gram_profile","rate":"True"},
            {"name":"as_viol_sql_comb_profile","rate":"True"},
            {"name":"as_viol_xxe_comb_profile","rate":"True"},
            {"name":"as_viol_xss_comb_profile","rate":"True"},
            {"name":"as_viol_owasp_comb_profile","rate":"True"},
            {"name":"as_viol_cmd_gram_profile","rate":"True"},
            {"name":"as_viol_json_cmd_gram_profile","rate":"True"},
            {"name":"as_viol_block_keyword_profile","rate":"True"},
            {"name":"as_viol_json_blockkeyword_profile","rate":"True"},
            {"name":"as_viol_total_per_profile","rate":"True"}
        ]
    }
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SSL traffic

To view only SSL related metrics, perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, ssltraffic_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile ssltraffic_metrics.json
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  3. Add the following content and save the changes:

    {
        "netscaler":
        [
            {"name":"ssl_tot_sslInfo_TotalTxCount","rate":"True"},
            {"name":"ssl_tot_enc_bytes","rate":"True"},
            {"name":"ssl_tot_dec_bytes","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_RSA_512","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_RSA_1024","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_RSA_2048","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_RSA_3072","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_RSA_4096","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_DH_512","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_DH_1024","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_DH_2048","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_DH_4096","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_ECDHE_curve_secp521r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_ECDHE_curve_secp384r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_ECDHE_curve_secp256r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_ECDHE_curve_secp224r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_ECDHE_curve_x25519","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC4_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC4_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC4_64","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC4_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_DES_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_DES_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_3DES_168","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_AES_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_AES_256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC2_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC2_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_RC2_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_AESGCM_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_AESGCM_256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Cipher_NULL","rate":"True"},
            {"name":"ssl_tot_sslInfo_Hash_MD5","rate":"True"},
            {"name":"ssl_tot_sslInfo_Hash_SHA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Hash_SHA256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Hash_SHA384","rate":"True"},
            {"name":"ssl_tot_sslInfo_SSLv3HandskCount","rate":"True"},
            {"name":"ssl_tot_sslInfo_TLSv1HandskCount","rate":"True"},
            {"name":"ssl_tot_sslInfo_TLSv11HandskCount","rate":"True"},
            {"name":"ssl_tot_sslInfo_TLSv12HandskCount","rate":"True"},
            {"name":"ssl_tot_sslInfo_Auth_RSA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Auth_DH","rate":"True"},
            {"name":"ssl_tot_sslInfo_Auth_DSS","rate":"True"},
            {"name":"ssl_tot_sslInfo_Auth_ECDSA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Auth_NULL","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_backend_ecdhe_curve_secp521r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_backend_ecdhe_curve_secp384r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_backend_ecdhe_curve_secp256r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_KeyEx_backend_ecdhe_curve_secp224r1","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC4_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC4_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC4_64","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC4_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_DES_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_DES_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_3DES_168","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_AES_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_AES_256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC2_40","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC2_56","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_RC2_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_AESGCM_128","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_AESGCM_256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Cipher_NULL","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Hash_MD5","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Hash_SHA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Hash_SHA256","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Hash_SHA384","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Auth_RSA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Auth_DH","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Auth_DSS","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Auth_ECDSA","rate":"True"},
            {"name":"ssl_tot_sslInfo_Backend_Auth_NULL","rate":"True"},
            {"name":"ssl_tot_enc_bytes_FE","rate":"True"},
            {"name":"ssl_tot_enc_bytes_BE","rate":"True"},
            {"name":"ssl_tot_dec_bytes_FE","rate":"True"},
            {"name":"ssl_tot_dec_bytes_BE","rate":"True"},
            {"name":"ssl_cur_session_inuse","rate":"True"}
        ],
        "vserver_ssl":
        [
            {"name":"ssl_ctx_tot_HandskFail","rate":"True"}
        ]
    }
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TCP traffic

To view only TCP related metrics, perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, tcptraffic_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile tcptraffic_metrics.json
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  3. Add the following content and save the changes:

    {
        "server_svc_cfg":
        [
            {"name":"si_tot_pkt_rcvd","rate":"True"},
            {"name":"si_tot_pkt_sent","rate":"True"}
        ],
        "vserver_cr":
        [
            {"name":"si_tot_pkt_rcvd","rate":"True"},
            {"name":"si_tot_pkt_sent","rate":"True"}
        ],
        "vserver_cs":
        [
            {"name":"si_tot_pkt_rcvd","rate":"True"},
            {"name":"si_tot_pkt_sent","rate":"True"}
        ],
        "vserver_lb":
        [
            {"name":"si_tot_pkt_rcvd","rate":"True"},
            {"name":"si_tot_pkt_sent","rate":"True"}
        ],
        "netscaler":
        [
            {"name":"tcp_cur_ClientConn","rate":"False"},
            {"name":"tcp_cur_ClientConnEst","rate":"False"},
            {"name":"tcp_cur_ServerConn","rate":"False"},
            {"name":"tcp_cur_ServerConnEst","rate":"False"},
            {"name":"tcp_cur_ClientConnClosing","rate":"False"},
            {"name":"tcp_cur_ServerConnClosing","rate":"False"},
            {"name":"tcp_cur_surgequeuelen","rate":"False"},
            {"name":"tcp_err_rst","rate":"False"},
            {"name":"tcp_err_noip","rate":"False"},
            {"name":"tcp_err_retransmit_giveups","rate":"False"},
            {"name":"tcp_err_retransmit","rate":"False"},
            {"name":"tcp_err_stray_packets","rate":"False"}
        ],
        "vserver_user":
        [
            {"name":"si_tot_pkt_rcvd","rate":"True"},
            {"name":"si_tot_pkt_sent","rate":"True"}
        ]
    }
    
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HTTP traffic

To view only HTTP related metrics, perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, httptraffic_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile httptraffic_metrics.json
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  3. Add the following content and save the changes:

    {
        "server_svc_cfg":
        [
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "server_serviceGroup":
        [
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "netscaler":
        [
            {"name":"http_tot_api_req_json","rate":"False"},
            {"name":"http_tot_api_req_xml","rate":"False"},
            {"name":"http_tot_api_req_vnd","rate":"False"},
            {"name":"http_tot_api_res_json","rate":"False"},
            {"name":"http_tot_api_res_xml","rate":"False"},
            {"name":"http_tot_api_res_vnd","rate":"False"}
        ],
        "vserver_authn":
        [
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_cr":
        [
            {"name":"vsvr_tot_Hits","rate":"True"},
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_cs":
        [
            {"name":"vsvr_tot_Hits","rate":"True"},
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_tot_clt_ttlb_transactions","rate":"False"},
            {"name":"si_tot_clt_ttlb","rate":"False"}
        ],
        "gslb_server":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "gslb_vserver":
        [
            {"name":"vsvr_tot_Hits","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "server_gslb_serviceGroup":
        [
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_lb":
        [
            {"name":"vsvr_tot_Hits","rate":"True"},
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"},
            {"name":"si_tot_clt_ttlb_transactions","rate":"False"},
            {"name":"si_tot_clt_ttlb","rate":"False"},
            {"name":"si_tot_1xx_resp","rate":"False"},
            {"name":"si_tot_2xx_resp","rate":"False"},
            {"name":"si_tot_4xx_resp","rate":"False"},
            {"name":"si_tot_5xx_resp","rate":"False"}
        ],
        "vserver_vpn":
        [
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ],
        "vserver_user":
        [
            {"name":"vsvr_tot_Hits","rate":"True"},
            {"name":"si_tot_Requests","rate":"True"},
            {"name":"si_tot_Responses","rate":"True"},
            {"name":"si_tot_RequestBytes","rate":"True"},
            {"name":"si_tot_ResponseBytes","rate":"True"}
        ]
    }
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System overview

To view only system overview related metrics, perform the following steps:

  1. Log in to NetScaler CLI and navigate to /var/metrics_conf/ folder.
  2. Create a schema file. For example, system_metrics.json.

    set analytics profile ns_analytics_time_series_profile -schemaFile system_metrics.json
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  3. Add the following content and save the changes:

    {
        "server_svc_cfg":
        [
            {"name":"si_tot_svr_ttlb","rate":"False"},
            {"name":"si_tot_svr_ttlb_transactions","rate":"False"},
            {"name":"si_cur_state","rate":"False"},
            {"name":"si_tot_svr_ttfb_transactions","rate":"False"},
            {"name":"si_tot_svr_ttfb","rate":"False"}
        ],
        "serviceGroup_NSSVC":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "server_serviceGroup":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"si_tot_svr_ttfb_transactions","rate":"False"},
            {"name":"si_tot_svr_ttfb","rate":"False"}
        ],
        "vserver_authn":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "vserver_cr":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"vsvr_tot_Hits","rate":"True"}
        ],
        "vserver_cs":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"vsvr_tot_Hits","rate":"True"}
        ],
        "gslb_server":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "gslb_vserver":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"vsvr_tot_Hits","rate":"True"}
        ],
        "gslb_serviceGroup_NSSVC":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "server_gslb_serviceGroup":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "vserver_lb":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"si_tot_2xx_resp","rate":"False"},
            {"name":"si_tot_4xx_resp","rate":"False"},
            {"name":"vsvr_tot_Hits","rate":"True"}
        ],
        "interface":
        [
            {"name":"nic_err_dropped_pkts","rate":"True"}
        ],
        "netscaler":
        [
            {"name": "tcp_cur_ClientConn", "rate": "False"},
            {"name": "tcp_err_noip", "rate": "False"},
            {"name": "tcp_err_rst", "rate": "True"},
            {"name": "mem_cur_usedsize", "rate": "False"},
            {"name": "tcp_tot_rxpkts", "rate": "True"},
            {"name": "http_tot_rxResponseBytes", "rate": "True"},
            {"name": "http_tot_Requests1_1", "rate": "True"},
            {"name": "http_tot_Responses", "rate": "True"},
            {"name": "tcp_err_retransmit_giveups", "rate": "True"},
            {"name": "cur_syshealth_disk0_errors", "rate": "False"},
            {"name": "http_tot_Requests", "rate": "True"},
            {"name": "http_tot_rxRequestBytes", "rate": "True"},
            {"name": "slave_cpu_use", "rate": "False"},
            {"name": "cur_syshealth_disk0_used", "rate": "False"},
            {"name": "tcp_err_rst_outof_wnd", "rate": "True"},
            {"name": "tcp_err_stray_packets", "rate": "True"},
            {"name": "cur_syshealth_disk1_errors", "rate": "False"},
            {"name": "mgmt_additional_cpu_use", "rate": "False"},
            {"name": "tcp_cur_ServerConnEst", "rate": "False"},
            {"name": "tcp_cur_ClientConnEst", "rate": "False"},
            {"name": "tcp_err_link_giveups", "rate": "False"},
            {"name": "tcp_err_rst_inTimewaits", "rate": "True"},
            {"name": "tcp_err_retransmit", "rate": "True"},
            {"name": "tcp_cur_ServerConnClosing", "rate": "False"},
            {"name": "tcp_err_rst_not_est", "rate": "True"},
            {"name": "http_tot_Responses1_1", "rate": "True"},
            {"name": "tcp_err_rst_not_est", "rate": "True"},
            {"name": "tcp_err_rst_inTimewaits", "rate": "True"},
            {"name": "tcp_err_rst_outof_wnd", "rate": "True"},
            {"name": "tcp_cur_ServerConn", "rate": "False"},
            {"name": "allnic_tot_tx_mbits", "rate": "True"},
            {"name": "http_tot_Responses1_0", "rate": "True"},
            {"name": "cpu_use", "rate": "False"},
            {"name": "tcp_err_retransmit_giveups", "rate": "True"},
            {"name": "http_tot_Requests1_0", "rate": "True"},
            {"name": "mgmt_cpu_use", "rate": "False"},
            {"name": "cur_syshealth_disk1_size", "rate": "False"},
            {"name": "allnic_tot_rx_mbits", "rate": "True"},
            {"name": "master_cpu_use", "rate": "False"},
            {"name": "cur_syshealth_disk0_size", "rate": "False"}
        ],
        "mempool":
        [
            {"name":"mem_err_alloc_failed","rate":"False"}
        ],
        "vserver_ssl":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "cpu":
        [
            {"name":"cc_cpu_use","rate":"False"}
        ],
        "vserver_vpn":
        [
            {"name":"si_cur_state","rate":"False"}
        ],
        "vserver_user":
        [
            {"name":"si_cur_state","rate":"False"},
            {"name":"vsvr_tot_Hits","rate":"True"}
        ]
    }
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View metrics

The following are the different ways to consume or visualize metrics:

  • NetScaler command line interface (CLI)
  • Citrix proprietery NITRO APIs
  • Export metrics to NetScaler Console
  • Export metrics to observability tools

NetScaler CLI

You can use the NetScaler CLI to get the metrics. Log in to NetScaler CLI and run the command from the Shell prompt. The following command is an example command:

stat lb vserver <vserver-name>
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Example:

> shell
root@ns# stat lb vserver vsrv-wireless
Virtual Server Summary
                      vsvrIP  port     Protocol        State   Health  actSvcs
vsrv...eless               *     0          TCP           UP      100        1

           inactSvcs
vsrv...eless       0
Virtual Server Statistics
                                          Rate (/s)                Total
Vserver hits                                       0                   10
Requests                                           0                    0
Responses                                          0                    0
Request bytes                                      0                 1580
Response bytes                                     0            532594360
Total Packets rcvd                                 0               216463
Total Packets sent                                 0               369898
Current client connections                        --                    0
Current Client Est connections                    --                    0
Current server connections                        --                    0
Requests in surge queue                           --                    0
Requests in vserver's surgeQ                      --                    0
Requests in service's surgeQs                     --                    0
Spill Over Threshold                              --                    0
Spill Over Hits                                   --                    0
Labeled Connection                                --                    0
Push Labeled Connection                           --                    0
Deferred Request                                   0                    0
Invalid Request/Response                          --                    0
Invalid Request/Response Dropped                  --                    0
Bound Service(s) Summary
                          IP  port         Type        State     Hits   Hits/s
svc-internet     192.168.2.2     0          TCP           UP       10      0/s

                 Req    Req/s      Rsp    Rsp/s Throughp ClntConn   SurgeQ
svc-internet       0      0/s        0      0/s        0        0        0
                  SvrConn   ReuseP  MaxConn ActvTran  SvrTTFB     Load
svc-internet         0        0        0        0        0        0

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Citrix proprietery NITRO APIs

You can run NITRO APIs and fetch the required metrics.

For example, to view the total number of HTTP requests that NetScaler is handling, you can use the NITRO API by running the following curl command in the linux shell:

curl http://{nsip}/nitro/v1/stat/nsglobalcntr?args=counters:http_tot_Requests -u {nsuser}:{nspassword}
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In the preceding example,

  • nsip is the NetScaler IP address
  • nsuser and nspassword are the NetScaler login credentials

The output is as follows:

root@rohit_lvm:~#  curl "http://10.10.10.10/nitro/v1/stat/nsglobalcntr?args=counters:http_tot_Requests" -u nsroot:freebsd
{ "errorcode": 0, "message": "Done", "severity": "NONE", "nsglobalcntr": { "http_tot_Requests": "33398" } }
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For more information Citrix proprietery NITRO APIs, see Citrix ADC NITRO APIs.

Export metrics to NetScaler Console

If you have NetScaler Console in your network to manage your NetScalers, then you can view the metrics through NetScaler Console GUI. For more information, see NetScaler Console Documentation.

Export metrics to observability tools

You can export metrics such as statistics and counters to observability tools such as:

Sample dashboards

The following dashboards avaialble on Grafana and Splunk provide you metrics associated with a specific use case:

You can troubleshoot any issues by using the debugging logs are stored at /var/nslog/metricscollector.log location.