JSON format diagnostic messages
A tabular description of the name/value pairs that make up each JSON format IBM MQ diagnostic message.
See QMErrorLog service for more information on diagnostic messages.
If you write an error log file in JSON format, each error message contains single lines of JSON.
| name | Type | Description |
|---|---|---|
| host | string | The host name |
| ibm_arithInsert1 | number | The first message variable. |
| ibm_arithInsert2 | number | The second message variable. |
| ibm_commentInsert1 | string | The third message variable, if required. |
| ibm_commentInsert2 | string | The fourth message variable, if required. |
| ibm_commentInsert3 | string | The fifth message variable, if required. |
| ibm_datetime | string | An ISO 8601 formatted timestamp indicating when the message was generated. Of the form YYYY-MM-DDTHH:MM:SS.mmmZ, always in UTC. |
| ibm_installationDir | string | The installation path. Included because it allows a parsing program on the machine to run appropriate commands from the installation. |
| ibm_installationName | string | The installation name. |
| ibm_messageID | string | The diagnostic message identifier including the severity character, for example, AMQ6209W. |
| ibm_processID | number | The process identifier. |
| ibm_processName | string | The process, or job name on IBM i, for example, amqzxma0. |
| ibm_qmgrId | string | An identifier for the queue manager. |
| ibm_remoteHost | string | IP address of the associated client program, if there is one. |
| ibm_sequence | string | Sequence number of message; intended to differentiate between messages produced at the same time. |
| ibm_serverName | string | The name of the queue manager. |
| ibm_threadId | number | The IBM MQ thread identifier within the process. |
| ibm_userName | string | The real name of the user under which the process is running. |
| ibm_version | string | IBM MQ Version, Release, Modification, Fix pack (VRMF) information. |
| loglevel | string | Either, INFO, WARNING, or ERROR. |
| message | string | A summary of the message, including the identifier, with inserts expanded. |
| module | string | The source file and line number where the message was generated, for example, amqxerrx.c:243. |
| type | string | mq_log |
Example message
The following message is displayed on multiple lines, but IBM MQ typically writes the message on a single line.
{
"ibm_messageId":"AMQ9209E",
"ibm_arithInsert1":0,
"ibm_arithInsert2":0,
"ibm_commentInsert1":"localhost (127.0.0.1)",
"ibm_commentInsert2":"TCP/IP",
"ibm_commentInsert3":"SYSTEM.DEF.SVRCONN",
"ibm_datetime":"2018-02-22T06:54:53.942Z",
"ibm_serverName":"QM1",
"type":"mq_log",
"host":"0df0ce19c711",
"loglevel":"ERROR",
"module":"amqccita.c:4214",
"ibm_sequence":"1519282493_947814358",
"ibm_remoteHost":"127.0.0.1",
"ibm_qmgrId":"QM1_2018-02-13_10.49.57",
"ibm_processId":4927,
"ibm_threadId":4,
"ibm_version":"9.0.5.0",
"ibm_processName":"amqrmppa",
"ibm_userName":"johndoe",
"ibm_installationName":"Installation1",
"ibm_installationDir":"/opt/mqm",
"message":"AMQ9209E: Connection to host 'localhost (127.0.0.1)' for channel 'SYSTEM.DEF.SVRCONN' closed."
}
Parent topic: Messages