public class JavaSparkStatusTracker
extends Object
These APIs intentionally provide very weak consistency semantics; consumers of these APIs should
be prepared to handle empty / missing information. For example, a job's stage ids may be known
but the status API may not have any information about the details of those stages, so
getStageInfo
could potentially return null
for a valid stage id.
To limit memory usage, these APIs only provide information on recent jobs / stages. These APIs
will provide information for the last spark.ui.retainedStages
stages and
spark.ui.retainedJobs
jobs.
Modifier and Type | Method and Description |
---|---|
int[] |
getActiveJobIds()
Returns an array containing the ids of all active jobs.
|
int[] |
getActiveStageIds()
Returns an array containing the ids of all active stages.
|
int[] |
getJobIdsForGroup(String jobGroup)
Return a list of all known jobs in a particular job group.
|
SparkJobInfo |
getJobInfo(int jobId)
Returns job information, or
null if the job info could not be found or was garbage collected. |
SparkStageInfo |
getStageInfo(int stageId)
Returns stage information, or
null if the stage info could not be found or was
garbage collected. |
public int[] getActiveJobIds()
This method does not guarantee the order of the elements in its result.
public int[] getActiveStageIds()
This method does not guarantee the order of the elements in its result.
public int[] getJobIdsForGroup(String jobGroup)
jobGroup
is null
, then
returns all known jobs that are not associated with a job group.
The returned list may contain running, failed, and completed jobs, and may vary across invocations of this method. This method does not guarantee the order of the elements in its result.
jobGroup
- (undocumented)public SparkJobInfo getJobInfo(int jobId)
null
if the job info could not be found or was garbage collected.jobId
- (undocumented)public SparkStageInfo getStageInfo(int stageId)
null
if the stage info could not be found or was
garbage collected.stageId
- (undocumented)