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use fixed-size mapdb cache to avoid heap growing uncontrollably

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Xavier Léauté 2014-12-05 15:34:50 -08:00
parent 40f223215a
commit ad23e49777
1 changed files with 3 additions and 1 deletions
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processing/src/main/java/io/druid/segment/incremental/OffheapIncrementalIndex.java
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@ -109,7 +109,9 @@ public class OffheapIncrementalIndex extends IncrementalIndex<BufferAggregator>
final DBMaker dbMaker = DBMaker.newMemoryDirectDB()
.transactionDisable()
.asyncWriteEnable()
.cacheSoftRefEnable();
.cacheLRUEnable()
.cacheSize(16384);
this.factsDb = dbMaker.make();
this.db = dbMaker.make();
final TimeAndDimsSerializer timeAndDimsSerializer = new TimeAndDimsSerializer(this);