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From "Darrel Schneider (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (GEODE-2097) Offheap persistent heapLRU regions can run out of offheap memory during recovery
Date Mon, 24 Apr 2017 16:04:04 GMT

     [ https://issues.apache.org/jira/browse/GEODE-2097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Darrel Schneider resolved GEODE-2097.
-------------------------------------
    Resolution: Fixed

> Offheap persistent heapLRU regions can run out of offheap memory during recovery
> --------------------------------------------------------------------------------
>
>                 Key: GEODE-2097
>                 URL: https://issues.apache.org/jira/browse/GEODE-2097
>             Project: Geode
>          Issue Type: Bug
>          Components: offheap
>            Reporter: Darrel Schneider
>            Assignee: Darrel Schneider
>             Fix For: 1.2.0
>
>
> When the data for a persistent region is being recovered from the disk store the lru
limit is constantly checked. If the lru limit is exceeded then value recovery will cease.
But for off-heap regions this lru limit should be checking how much off-heap memory has been
allocated.
> During recovery the amount of heap memory is being checked for an offheap regions. So
we can end up recovering too many values to off-heap and running out of off-heap memory during
recovery.
> The code that causes this problem is: org.apache.geode.internal.cache.lru.HeapLRUCapacityController.createLRUHelper().new
AbstractEnableLRU() {...}.mustEvict(LRUStatistics, Region, int)
> During off-heap disk store recovery the Region parameter passed to this method is "null".
This causes the following heap check to be done:        
>        if (region == null) {
>           return resourceManager.getHeapMonitor().getState().isEviction();
>         }



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