Chapter 16. Troubleshooting Data Grid Server deployments

Procedure

1. Create a CLI connection to Data Grid Server.

2. Use the server report command to download a tar.gz archive:

   server report
   Downloaded report 'infinispan-<hostname>-<timestamp>-report.tar.gz'

   The command responds with the name of the report, as in the following example:

   Downloaded report 'infinispan-<hostname>-<timestamp>-report.tar.gz'

3. Move the tar.gz file to a suitable location on your filesystem.
4. Extract the tar.gz file with any archiving tool.

Procedure

1. Create a CLI connection to Data Grid Server.

2. Use the logging to make the required adjustments.

   • List all appenders defined on the server:

     logging list-appenders

     The command provides a JSON response such as the following:

     {
       "STDOUT" : {
         "name" : "STDOUT"
       },
       "JSON-FILE" : {
         "name" : "JSON-FILE"
       },
       "HR-ACCESS-FILE" : {
         "name" : "HR-ACCESS-FILE"
       },
       "FILE" : {
         "name" : "FILE"
       },
       "REST-ACCESS-FILE" : {
         "name" : "REST-ACCESS-FILE"
       }
     }

   • List all logger configurations defined on the server:

     logging list-loggers

     The command provides a JSON response such as the following:

     [ {
       "name" : "",
       "level" : "INFO",
       "appenders" : [ "STDOUT", "FILE" ]
     }, {
       "name" : "org.infinispan.HOTROD_ACCESS_LOG",
       "level" : "INFO",
       "appenders" : [ "HR-ACCESS-FILE" ]
     }, {
       "name" : "com.arjuna",
       "level" : "WARN",
       "appenders" : [ ]
     }, {
       "name" : "org.infinispan.REST_ACCESS_LOG",
       "level" : "INFO",
       "appenders" : [ "REST-ACCESS-FILE" ]
     } ]

   • Add and modify logger configurations with the set subcommand

     For example, the following command sets the logging level for the org.infinispan package to DEBUG:

     logging set --level=DEBUG org.infinispan

   • Remove existing logger configurations with the remove subcommand.

     For example, the following command removes the org.infinispan logger configuration, which means the root configuration is used instead:

     logging remove org.infinispan

Procedure

1. Connect to Data Grid server using any JMX capable tool such as JConsole and navigate to the following object:

   org.infinispan:type=CacheManager,name="default",component=CacheContainerHealth

2. Select available MBeans to retrieve cluster health statistics.