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

java.lang.Object
  extended by org.apache.lucene.benchmark.byTask.tasks.PerfTask
      extended by 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 supports 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 supports parameters must override this method to return true.

Overrides:
supportsParams in class PerfTask
Returns:
true iff this task supports command line params.


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