I have the same issue. The configuration is : Two nodes, we sent them some
data (1m) and now they are running at 200%/400% around
org.elasticsearch.indices.cache.filter.IndicesFilterCache$ReaderCleaner$1.run(IndicesFilterCache.java:183)
for hours. (ES version 1.0.1)
Le vendredi 18 avril 2014 20:26:09 UTC+2, Nikolas Everett a écrit :
>
> I'm still doing performance work and I keep seeing the CacheCleaner pop up
> [1]. I don't know how much of an effect its actually having, but I imagine
> its something.
>
> It looks like entries in the cache get queued for deletion both by cache
> clear commands and by readers closing. Would it make sense to forgo
> removing entries when the readers close and let the LRU policy clean it up?
>
> Nik
>
> [1]:
> 100.4% (502.1ms out of 500ms) cpu usage by thread
> 'elasticsearch[elastic1001][generic][T#73]'
> 2/10 snapshots sharing following 5 elements
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.remove(LocalCache.java:4353)
>
> org.elasticsearch.indices.cache.filter.IndicesFilterCache$ReaderCleaner$1.run(IndicesFilterCache.java:186)
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> java.lang.Thread.run(Thread.java:724)
> 4/10 snapshots sharing following 8 elements
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.nextInTable(LocalCache.java:4306)
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.advance(LocalCache.java:4271)
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.nextEntry(LocalCache.java:4346)
>
> org.elasticsearch.common.cache.LocalCache$KeyIterator.next(LocalCache.java:4362)
>
> org.elasticsearch.indices.cache.filter.IndicesFilterCache$ReaderCleaner$1.run(IndicesFilterCache.java:183)
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> java.lang.Thread.run(Thread.java:724)
> 4/10 snapshots sharing following 7 elements
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.advance(LocalCache.java:4271)
>
> org.elasticsearch.common.cache.LocalCache$HashIterator.nextEntry(LocalCache.java:4346)
>
> org.elasticsearch.common.cache.LocalCache$KeyIterator.next(LocalCache.java:4362)
>
> org.elasticsearch.indices.cache.filter.IndicesFilterCache$ReaderCleaner$1.run(IndicesFilterCache.java:183)
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> java.lang.Thread.run(Thread.java:724)
>
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