Task Status Command

Doradus Logging uses background tasks to perform data aging and batch merging. These tasks execute automatically at their defined frequency. On multi-node clusters, Doradus ensures that each task is executed by only a single node at each scheduled occurrence. The following REST command is available to list the status of all known tasks:

GET /_tasks

This command returns a response such as the following:

<tasks>

<task name="LogDepot/*/logs-merging">

<Status>Completed</Status>

<Executor>10.1.161.79</Executor>

<FinishTime>2015-09-04 14:59:46</FinishTime>

<StartTime>2015-09-04 14:59:46</StartTime>

</task>

<task name="LogDepot/*/logs-aging">

<Status>Completed</Status>

<Executor>192.168.1.12</Executor>

<FinishTime>2015-09-03 15:48:57</FinishTime>

<StartTime>2015-09-03 15:48:57</StartTime>

</task>

</tasks>

In JSON:

{"tasks": {

LogDepot/*/logs-merging": {

"Status": "Completed",

"Executor": "10.1.161.79",

"FinishTime": "2015-09-04 14:59:46",

"StartTime": "2015-09-04 14:59:46"

},

LogDepot/*/logs-aging": {

"Status": "Completed",

"Executor": "192.168.1.12",

"FinishTime": "2015-09-03 15:48:57",

"StartTime": "2015-09-03 15:48:57"

}

}}

The status of each task is listed using the task name <application>/*/data-aging. The status, start time, and finish time is shown. The Executor is the IP address if the Doradus node that performed the task.