Package org.apache.hadoop.yarn.logaggregation

Class LogAggregationMetaCollector

java.lang.Object

org.apache.hadoop.yarn.logaggregation.LogAggregationMetaCollector

public class LogAggregationMetaCollector
extends Object

Facilitates an extended query of aggregated log file metadata with the help of file controllers.

Constructor Summary

Constructors

Constructor	Description
LogAggregationMetaCollector(ExtendedLogMetaRequest logsRequest, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method	Description
List<ContainerLogMeta>	collect(LogAggregationFileController fileController)	Collects all log file metadata based on the complex query defined in UserLogsRequest.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LogAggregationMetaCollector

public LogAggregationMetaCollector(ExtendedLogMetaRequest logsRequest,
 org.apache.hadoop.conf.Configuration conf)

Method Details

collect

public List<ContainerLogMeta> collect(LogAggregationFileController fileController)
                               throws IOException

Collects all log file metadata based on the complex query defined in UserLogsRequest.

Parameters:

fileController - log aggregation file format controller

Returns:

collection of log file metadata grouped by containers

Throws:

IOException - if node file is not reachable