org.apache.lucene.benchmark.byTask.tasks
Class NearRealtimeReaderTask

java.lang.Object
  org.apache.lucene.benchmark.byTask.tasks.PerfTask
      org.apache.lucene.benchmark.byTask.tasks.NearRealtimeReaderTask

All Implemented Interfaces:

Cloneable

public class NearRealtimeReaderTask
extends PerfTask

Spawns a BG thread that periodically (defaults to 3.0 seconds, but accepts param in seconds) wakes up and asks IndexWriter for a near real-time reader. Then runs a single query (body: 1) sorted by docdate, and prints time to reopen and time to run the search.

WARNING: This API is experimental and might change in incompatible ways in the next release.

It's also not generally usable, eg you cannot change which query is executed.

Field Summary

Fields inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

logStep, NEW_LINE, params, stopNow

Constructor Summary

NearRealtimeReaderTask(PerfRunData runData)

Method Summary

void	close()
int	doLogic() Perform the task once (ignoring repetitions specification) Return number of work items done by this task.
void	setParams(String params) Set the params of this task.
boolean	supportsParams() Sub classes that support parameters must override this method to return true.

Methods inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

clone, getBackgroundDeltaPriority, getDepth, getLogMessage, getName, getParams, getRunData, getRunInBackground, isDisableCounting, runAndMaybeStats, setDepth, setDisableCounting, setName, setRunInBackground, setup, shouldNeverLogAtStart, shouldNotRecordStats, stopNow, tearDown, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NearRealtimeReaderTask

public NearRealtimeReaderTask(PerfRunData runData)

Method Detail

doLogic

public int doLogic()
            throws Exception

Description copied from class: PerfTask

Perform the task once (ignoring repetitions specification) Return number of work items done by this task. For indexing that can be number of docs added. For warming that can be number of scanned items, etc.

Specified by:

doLogic in class PerfTask

Returns:

number of work items done by this task.

Throws:

Exception

setParams

public void setParams(String params)

Description copied from class: PerfTask

Set the params of this task.

Overrides:

setParams in class PerfTask

close

public void close()

Overrides:

close in class PerfTask

supportsParams

public boolean supportsParams()

Description copied from class: PerfTask

Sub classes that support parameters must override this method to return true.

Overrides:

supportsParams in class PerfTask

Returns:

true iff this task supports command line params.