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https://issues.apache.org/jira/browse/IGNITE-3599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov updated IGNITE-3599:
------------------------------------
    Priority: Major  (was: Critical)

> Offheap cache memory leaks
> --------------------------
>
>                 Key: IGNITE-3599
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3599
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.6
>            Reporter: Alisher Alimov
>
> Seems that Offheap cache doesn't free memory resources on 
> IgniteCache#destroy()
> Example:
> {code}
>         CacheConfiguration<UUID, UUID> cacheCfg = new 
> CacheConfiguration<>(UUID.randomUUID().toString());
>         cacheCfg.setBackups(0);
>         cacheCfg.setCacheMode(CacheMode.PARTITIONED);
>         cacheCfg.setAtomicityMode(CacheAtomicityMode.ATOMIC);
>         cacheCfg.setMemoryMode(CacheMemoryMode.OFFHEAP_TIERED);
>         cacheCfg.setEvictionPolicy(new FifoEvictionPolicy(1));
>         cacheCfg.setOffHeapMaxMemory(16000000); // ~1 000 000 UUIDs 
>         cacheCfg.setSwapEnabled(false);
>         for (; ; ) {
>             IgniteCache<UUID, UUID> cache = 
> analyticsContext.getIgnite().getOrCreateCache(UUID.randomUUID().toString());
>             for (int j = 0; j < 1000000; j++) {
>                 cache.put(UUID.randomUUID(), UUID.randomUUID());
>             }
>             cache.clear();
>             cache.destroy();
>         }
> {code}
> After several iteration for create/fill/destroy operations you could see that 
> using memory for current process is always increasing and seems that off heap 
> cache doesn't free memory resources on IgniteCache#destroy 



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