Mikhail Cherkasov created IGNITE-7319:
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Summary: Memory leak during creating/destroying local cache
Key: IGNITE-7319
URL: https://issues.apache.org/jira/browse/IGNITE-7319
Project: Ignite
Issue Type: Bug
Components: cache
Affects Versions: 2.3
Reporter: Mikhail Cherkasov
Fix For: 2.4
The following code creates local caches:
private IgniteCache<String, BinaryObject> createLocalCache(String name) {
CacheConfiguration<String, BinaryObject> cCfg = new
CacheConfiguration<>();
cCfg.setName(name);
cCfg.setGroupName("localCaches"); // without group leak is much
bigger!
cCfg.setStoreKeepBinary(true);
cCfg.setCacheMode(CacheMode.LOCAL);
cCfg.setOnheapCacheEnabled(false);
cCfg.setCopyOnRead(false);
cCfg.setBackups(0);
cCfg.setWriteBehindEnabled(false);
cCfg.setReadThrough(false);
cCfg.setReadFromBackup(false);
cCfg.setQueryEntities(<some basic query here>);
return ignite.createCache(cCfg).withKeepBinary();
}
The caches are placed in the queue and are picked up by the worker thread which
just destroys them after removing from the queue.
This setup seems to generate a memory leak of about 1GB per day.
When looking at heap dump, I see all space is occupied by instances of
java.util.concurrent.ConcurrentSkipListMap$Node.
User list:
http://apache-ignite-users.70518.x6.nabble.com/Memory-leak-in-GridCachePartitionExchangeManager-tt18995.html
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