Hi Shawn, What is the maximum size of the heap?
I don’t think the cache configurations can be a reason of the OOM. As a side note, there is no reason to keep the configurations at all. Once a cache is started with a configuration you can either keep a single reference to it and reuse by multiple app threads or get a new one by passing the cache name into a respective Ignite method. — Denis > On Jan 21, 2017, at 9:03 PM, Shawn Du <[email protected]> wrote: > > I review the code, find a never released HashMap which store some cache > configurations. > private Map<TableSchema, CacheConfiguration<String, BinaryObject>> > cacheConfigurations = new HashMap<>(); > I cache these configurations for performance consideration. > I get ignite cache by calling: > IgniteCache<String, BinaryObject> cache = > IgniteManager.getIgnite().getOrCreateCache(configuration); > > My question: > If cache configuration doesn’t release, it will prevent some memeory/cache > entries/something else release? > > Thanks > Shawn > > 发件人: <> Shawn Du [mailto:[email protected]] > 发送时间: 2017年1月22日 9:09 > 收件人: [email protected] > 主题: ignite client memory issue > > Hi, > > My ignite client died many times recently because of OOM. Of course, I can > increase the Max heap size. But I want to know why these memory are not > released. > This is part of analysis of Eclipse Memory Analyzer. My ignite client use > Async cache API. please help. > > Class Name > | Objects | Shallow Heap | Retained Heap > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > java.lang.Thread > | 109 | 13,080 | >= 561,086,296 > java.lang.ThreadLocal$ThreadLocalMap > | 98 | 2,352 | >= 537,825,592 > java.lang.ThreadLocal$ThreadLocalMap$Entry[] > | 98 | 139,808 | >= 537,823,232 > java.lang.ThreadLocal$ThreadLocalMap$Entry > | 15,202 | 486,464 | >= 535,750,616 > org.apache.ignite.internal.processors.cache.IgniteCacheFutureImpl > | 14,476 | 231,616 | >= 534,866,208 > org.apache.ignite.internal.util.future.GridFutureAdapter$ChainFuture > | 14,476 | 926,464 | >= 534,634,600 > org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridNearAtomicSingleUpdateFuture > | 14,466 | 2,198,832 | >= 531,444,584 > byte[] > | 18,438 | 530,369,360 | >= 530,369,360 > org.apache.ignite.internal.binary.BinaryObjectImpl > | 14,466 | 578,640 | >= 527,749,368 > > Thanks > Shawn
