[infinispan-issues] [JBoss JIRA] Commented: (ISPN-1329) org.infinispan.loaders.decorators.AsyncStore leads to OutOfMemoryExceptions

org.infinispan.loaders.decorators.AsyncStore leads to OutOfMemoryExceptions --------------------------------------------------------------------------- Key: ISPN-1329 URL: https://issues.jboss.org/browse/ISPN-1329 Project: Infinispan Issue Type: Bug Components: Configuration, Loaders and Stores Affects Versions: 5.0.0.CR8 Reporter: Robert Stupp Assignee: Manik Surtani When I configure {code} <async enabled="true" threadPoolSize="3"/> {code} the implementation creates three threads names "CoalescedAsyncStore" per cache store. When adding a large amount of data to the cache (for example indexing a lot of Lucene documents), the application will stop working with a lot of OutOfMemory exceptions. This is caused by the implementation of org.infinispan.loaders.decorators.AsyncStore that uses an unbounded LinkedBlockingQueue. A lot of worker threads push a huge amount of modifications into the queues, but the underlying cache store is not able to handle throughput. As a quick solution change {code} private final LinkedBlockingQueue<Modification> changesDeque = new LinkedBlockingQueue<Modification>(); {code} to {code} private final LinkedBlockingQueue<Modification> changesDeque = new LinkedBlockingQueue<Modification>(512); {code} and add a new configuration option to the async element, that specifies the capacity of the Linked Blocking Queue.