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https://issues.apache.org/jira/browse/ACCUMULO-4036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Elser reassigned ACCUMULO-4036:
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Assignee: Josh Elser
> remove verbose block cache eviction logging
> -------------------------------------------
>
> Key: ACCUMULO-4036
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4036
> Project: Accumulo
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.7.0
> Reporter: Adam Fuchs
> Assignee: Josh Elser
> Priority: Minor
> Fix For: 1.6.5, 1.7.1, 1.8.0
>
>
> For many scans and queries we get logs like the following at pretty extreme
> frequencies:
> {code}
> 2015-10-20 17:33:50,458 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578760 bytes
> 2015-10-20 17:33:50,458 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643840 bytes. Priority
> Sizes: Single=7.152191MB (7499616), Multi=5.60128MB (5873368),Memory=0.0MB (0)
> 2015-10-20 17:33:50,465 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578576 bytes
> 2015-10-20 17:33:50,465 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643584 bytes. Priority
> Sizes: Single=7.249962MB (7602136), Multi=5.60128MB (5873368),Memory=0.0MB (0)
> 2015-10-20 17:33:50,470 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578616 bytes
> 2015-10-20 17:33:50,470 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643872 bytes. Priority
> Sizes: Single=7.2499924MB (7602168), Multi=5.60128MB (5873368),Memory=0.0MB
> (0)
> 2015-10-20 17:33:50,477 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578344 bytes
> 2015-10-20 17:33:50,477 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643808 bytes. Priority
> Sizes: Single=7.1517944MB (7499200), Multi=5.60128MB (5873368),Memory=0.0MB
> (0)
> 2015-10-20 17:33:50,483 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578408 bytes
> 2015-10-20 17:33:50,483 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643648 bytes. Priority
> Sizes: Single=7.1518555MB (7499264), Multi=5.60128MB (5873368),Memory=0.0MB
> (0)
> 2015-10-20 17:33:50,488 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578408 bytes
> 2015-10-20 17:33:50,488 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643672 bytes. Priority
> Sizes: Single=7.1518555MB (7499264), Multi=5.60128MB (5873368),Memory=0.0MB
> (0)
> 2015-10-20 17:33:50,494 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578560 bytes
> 2015-10-20 17:33:50,494 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643472 bytes. Priority
> Sizes: Single=7.1520004MB (7499416), Multi=5.60128MB (5873368),Memory=0.0MB
> (0)
> 2015-10-20 17:33:50,500 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction started. Attempting to free 1578872 bytes
> 2015-10-20 17:33:50,500 [cache.LruBlockCache] [LruBlockCache.EvictionThread]
> DEBUG: Block cache LRU eviction completed. Freed 1643840 bytes. Priority
> Sizes: Single=7.152298MB (7499728), Multi=5.60128MB (5873368),Memory=0.0MB (0)
> {code}
> In this case, it's a message every few milliseconds. Does anybody need these
> log messages? If so, could/should they be rolled up into stats other than our
> cache hit stats?
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