You can call DescribeFlowNodeInstanceLauncherLog operation to query the log of a launcher that runs on a node instance.
Debugging
Request parameters
Parameter | Type | Required | Example | Description |
---|---|---|---|---|
Action | String | Yes | DescribeFlowNodeInstanceLauncherLog |
The operation that you want to perform. Set the value to DescribeFlowNodeInstanceLauncherLog. |
NodeInstanceId | String | Yes | FNI-0D2534B3AB67**** |
The ID of the job instance. |
ProjectId | String | Yes | FP-BECB9D35CB12**** |
The ID of the project. You can call ListFlowProject View the ID of the project. |
RegionId | String | Yes | cn-hangzhou |
The region ID of the instance. You can call DescribeRegions To view the latest list of Alibaba Cloud regions. |
Start | Integer | No | 200 |
The start offset of the log. |
Lines | Integer | No | 100 |
The number of log entries to return. The maximum number of log entries to return at a time is 1,000. |
Offset | Integer | No | 200 |
A deprecated parameter. |
Length | Integer | No | 100 |
A deprecated parameter. |
Reverse | Boolean | No | true |
Specifies whether log entries are sorted in reverse chronological order. |
StartTime | Long | No | 1540796236000 |
The start time of the query. |
EndTime | Long | No | 1540796248000 |
The end time of the queried log. |
Response parameters
Parameter | Type | Example | Description |
---|---|---|---|
LogEnd | Boolean | false |
Indicates whether the log stream ended. |
LogEntrys | Array of LogEntry |
An array of log entries. |
|
LogEntry | |||
Content | String | 2018-11-19 17:55:11,792 INFO [RMCommunicator Allocator] org.apache.hadoop.yarn.util.RackResolver: Resolved emr-worker-1.cluster-500160492 to /default-rack |
The log entry. |
RequestId | String | 4E216C44-F828-4D59-B398-253DCF86F23C |
The ID of the request. |
Examples
Sample requests
http(s)://[Endpoint]/?Action=DescribeFlowNodeInstanceLauncherLog
&NodeInstanceId=FNI-0D2534B3AB67****
&ProjectId=FP-BECB9D35CB12****
&RegionId=cn-hangzhou
&<common request parameters>
Sample success responses
XML
format
<RequestId>F4BBBCEF-20B9-4AD2-99EF-E1BA8D72B2C3</RequestId>
<LogEnd>false</LogEnd>
<LogEntrys>
<LogEntry>
<Content>Fri Nov 16 09:56:00 CST 2018 [LocalJobLauncherAM] INFO Starting emr flow launcher am ...</Content>
</LogEntry>
<LogEntry>
<Content>== System Properties ============</Content>
</LogEntry>
<LogEntry>
<Content> java.runtime.name=OpenJDK Runtime Environment</Content>
</LogEntry>
</LogEntrys>
JSON
Syntax
{
"RequestId": "F4BBBCEF-20B9-4AD2-99EF-E1BA8D72B2C3",
"LogEnd": false,
"LogEntrys": {
"LogEntry": [
{
"Content": "Fri Nov 16 09:56:00 CST 2018 [LocalJobLauncherAM] INFO Starting emr flow launcher am ..."
},
{
"Content": "== System Properties ============"
},
{
"Content": " java.runtime.name=OpenJDK Runtime Environment"
}
]
}
}