Package org.apache.jackrabbit.oak.plugins.index

Class RateLimitUtils

java.lang.Object

org.apache.jackrabbit.oak.plugins.index.RateLimitUtils

public class RateLimitUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static long	rateLimitWrites()	Rate limit writes in case indexes are lagging behind too far.

Methods inherited from class java.lang.Object

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

Method Details

rateLimitWrites

public static long rateLimitWrites()

Rate limit writes in case indexes are lagging behind too far. The method returns immediately if all async indexes are up-to-date (updated in the last 30 seconds). If indexing lanes are lagging behind, however, the method will wait (using Thread.sleep) for at most 1 minute. If the method is called more than once per minute, it will sleep for at most the time that passed until the last call; that is, an application that is calling it a lot will be paused for up to 50%. This assumes indexes will be able to catch up in this situation.

Returns:

the number of milliseconds the call was sleeping