[[Request Tracing Service-command-reference]] = Administration Commands

The following is a detailed list of the administration commands that can be used to correctly configure the Request Tracing Service.

set-requesttracing-configuration

Usage

asadmin> set-requesttracing-configuration

Aim

This command can be used to set all configuration of the request tracing service at once.

Command Options

Option Type Description Default Mandatory

--enabled

Boolean

Enables or disables the service

false

Yes

--dynamic

Boolean

When set to true, applies the changes without a restart. Otherwise a restart is required.

false

No

--sampleRate

Double

The probability of a trace being sampled. Number must be between 0 and 1.0

1.0

No

--adaptiveSamplingEnabled

Boolean

Whether or not to use an adaptive sampling rate

False

No

--adaptiveSamplingTargetCount

Integer

The target number of traces to sample per the configured time window

6

No

--adaptiveSamplingTimeValue

Integer

The period of time to attempt to hit the adaptive sample target count in

1

No

--adaptiveSamplingTimeUnit

String

The time unit for the adaptiveSampleTimeValue option

MINUTES

No

--applicationsOnlyEnabled

Boolean

Whether or not to only sample traces related to applications

True

No

--thresholdValue

Integer

Sets the number of time units which trigger the tracing of a request. Only used if adaptiveSamplingEnabled is set to false

30

No

--thresholdUnit

TimeUnit

Sets the time unit to use for the threshold. Only used if adaptiveSamplingEnabled is set to false

SECONDS

No

--sampleRateFirstEnabled

Boolean

Whether to perform the sampling check before or after threshold calculation.

True

No

--traceStoreSize

Integer

Sets how many request traces will be stored

20

No

--traceStoreTimeout

Integer

Sets how long before Request Tracing messages are removed. This field is specified in the format "%d %h %m %s" where % is an integer. Any of the units can also be omitted. Ignored when reservoir sampling is enabled.

-

No

--reservoirSamplingEnabled

Boolean

Whether to use reservoir sampling, or time based sampling.

False

No

--historictracestoreenabled

Boolean

When present, enables storage of the slowest sampled historical request traces in a separate trace store.

false

No

--historictracestoresize

Integer

Sets how many request traces will be stored for historical purposes.

20

No

--historictracestoretimeout

String

Sets how long before Request Tracing messages are removed from the historical trace store. This field is specified in the format "%d %h %m %s" where % is an integer. Any of the units can also be omitted. Ignored when reservoir sampling is enabled.

N/A

No

Example

asadmin> set-requesttracing-configuration
    --enabled=true
    --thresholdValue=10
    --thresholdUnit="SECONDS"
    --dynamic=true
    --historictracestoreenabled=true
    --historictracestoresize=20
    --historictracestoretimeout='1d 2h 3m 30s'

requesttracing-[NOTIFIER_NAME]-notifier-configure

Usage

asadmin> requesttracing-[NOTIFIER_NAME]-notifier-configure --enabled=true --dynamic=true

Aim

This command can be used to enable or disable the notifier represented by the [NOTIFIER_NAME] placeholder.

Command Options

Option Type Description Default Mandatory

--enabled

Boolean

Enables or disables the notifier

false

Yes

--dynamic

Boolean

When set to true, applies the changes without a server/instance restart.

false

No

Examples

  1. To enable the log notifier for the Request Tracing Service without having to restart the server, use the following command:

    asadmin> requesttracing-log-notifier-configure
    --enabled=true
    --dynamic=true

get-requesttracing-configuration

Usage

asadmin> get-requesttracing-configuration

Aim

This command can be used to list the configuration settings of the Request Tracing Service.

Command Options

There are no available options for this command.

Example

asadmin> get-requesttracing-configuration

Will give an output similar to the following:

Request Tracing Service Enabled?: true
Request Tracing Service Sample Rate: 1.0
Request Tracing Service Adaptive Sampling Enabled?: false
Request Tracing Service Application Only?: true
Request Tracing Service Threshold Value: 30
Request Tracing Service Threshold Unit: SECONDS
Request Tracing Service Sample Rate First?: true
Request Tracing Service Reservoir Sampling Enabled?: false
Request Tracing Service Trace Store Size: 20
Request Tracing Service Historic Trace Store Enabled?: false
Below are the configuration details of each notifier listed by its name.

Notifier Name  Notifier Enabled
service-log    false
Command get-requesttracing-configuration executed successfully.

list-requesttraces

Usage

asadmin> list-requesttraces

Aim

This command can be used to list a number of previous request trace messages from either the current or historic trace stores of the Request Tracing Service.

Command Options

Option Type Description Default Mandatory

--first

Integer

A limit for the number of Request Tracing messages to return

false

No

--historicTraces

Boolean

Whether to get the traces from the historic trace store or not

True

No

Example

asadmin> list-requesttraces --historictraces false

Will give an output similar to the following:

Occurring Time            Elapsed Time  Traced Message
2018-03-15T12:36:07.391Z  169           {"traceSpans":[
{"operationName":"processContainerRequest","spanContext":{"spanId":"61fa3c1c-9f62-43fe-8e55-faba2ce77f92","traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"},"startTime":"2018-03-15T12:36:07.391Z[Europe/London]","endTime":"2018-03-15T12:36:07.560Z[Europe/London]","traceDuration":"169000000","spanTags":[{"Server": "server"},{"Domain": "domain1"}]},
{"operationName":"authenticateJaspic","spanContext":{"spanId":"fb929e4d-1477-4841-a088-0d07888608a6","traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"},"startTime":"2018-03-15T12:36:07.391Z[Europe/London]","endTime":"2018-03-15T12:36:07.392Z[Europe/London]","traceDuration":"1000000","spanTags":[{"Context": ""},{"AppContext": "__asadmin "},{"AuthResult": "true"},{"Principal": "admin"}]},
{"operationName":"processServletRequest","spanContext":{"spanId":"94cc4722-0990-4230-aa34-f0e0f629b1d8","traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"},"startTime":"2018-03-15T12:36:07.392Z[Europe/London]","endTime":"2018-03-15T12:36:07.559Z[Europe/London]","traceDuration":"167000000","spanTags":[{"referer": "[http://localhost:4848/common/index.jsf]"},{"accept-language": "[en-GB,en;q=0.8,de;q=0.5,zh-CN;q=0.3]"},{"cookie": "[JSESSIONID=99ce446fd68ec4adb3a3aa61b087; treeForm_tree-hi=treeForm:tree:nodes:hazelcast]"},{"QueryString": "bare=true"},{"Method": "GET"},{"URL": "http://localhost:4848/cluster/cluster/clusters.jsf"},{"accept": "[*/*]"},{"host": "[localhost:4848]"},{"connection": "[keep-alive]"},{"Class": "javax.faces.webapp.FacesServlet"},{"accept-encoding": "[gzip, deflate]"},{"user-agent": "[Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0]"}],"references":[{"spanContext":{"spanId":"61fa3c1c-9f62-43fe-8e55-faba2ce77f92","traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"},"relationshipType":"ChildOf"}]}
]}

The request tracing messages are in JSON format, so can be parsed by log parsing tools as if it were in the following format:

{
   "traceSpans":[
      {
         "operationName":"processContainerRequest",
         "spanContext":{
            "spanId":"61fa3c1c-9f62-43fe-8e55-faba2ce77f92",
            "traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"
         },
         "startTime":"2018-03-15T12:36:07.391Z[Europe/London]",
         "endTime":"2018-03-15T12:36:07.560Z[Europe/London]",
         "traceDuration":"169000000",
         "spanTags":[
            {
               "Server":"server"
            },
            {
               "Domain":"domain1"
            }
         ]
      },
      {
         "operationName":"authenticateJaspic",
         "spanContext":{
            "spanId":"fb929e4d-1477-4841-a088-0d07888608a6",
            "traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"
         },
         "startTime":"2018-03-15T12:36:07.391Z[Europe/London]",
         "endTime":"2018-03-15T12:36:07.392Z[Europe/London]",
         "traceDuration":"1000000",
         "spanTags":[
            {
               "Context":""
            },
            {
               "AppContext":"__asadmin "
            },
            {
               "AuthResult":"true"
            },
            {
               "Principal":"admin"
            }
         ]
      },
      {
         "operationName":"processServletRequest",
         "spanContext":{
            "spanId":"94cc4722-0990-4230-aa34-f0e0f629b1d8",
            "traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"
         },
         "startTime":"2018-03-15T12:36:07.392Z[Europe/London]",
         "endTime":"2018-03-15T12:36:07.559Z[Europe/London]",
         "traceDuration":"167000000",
         "spanTags":[
            {
               "referer":"[http://localhost:4848/common/index.jsf]"
            },
            {
               "accept-language":"[en-GB,en;q=0.8,de;q=0.5,zh-CN;q=0.3]"
            },
            {
               "cookie":"[JSESSIONID=99ce446fd68ec4adb3a3aa61b087; treeForm_tree-hi=treeForm:tree:nodes:hazelcast]"
            },
            {
               "QueryString":"bare=true"
            },
            {
               "Method":"GET"
            },
            {
               "URL":"http://localhost:4848/cluster/cluster/clusters.jsf"
            },
            {
               "accept":"[*/*]"
            },
            {
               "host":"[localhost:4848]"
            },
            {
               "connection":"[keep-alive]"
            },
            {
               "Class":"javax.faces.webapp.FacesServlet"
            },
            {
               "accept-encoding":"[gzip, deflate]"
            },
            {
               "user-agent":"[Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0]"
            }
         ],
         "references":[
            {
               "spanContext":{
                  "spanId":"61fa3c1c-9f62-43fe-8e55-faba2ce77f92",
                  "traceId":"13bdc5c0-7827-4106-ad32-0242fb75a732"
               },
               "relationshipType":"ChildOf"
            }
         ]
      }
   ]
}