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https://issues.apache.org/jira/browse/IGNITE-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexei Scherbakov resolved IGNITE-4655.
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Resolution: Won't Fix
Already fixed in master.
> Reduce heap usage on exchange.
> ------------------------------
>
> Key: IGNITE-4655
> URL: https://issues.apache.org/jira/browse/IGNITE-4655
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 1.6
> Reporter: Alexei Scherbakov
> Priority: Critical
> Fix For: 1.9
>
>
> Recently I've debugged heap overgrowth during an exchange on configuration
> with large amount of caches.
> I found several problems:
> * GridDhtPartitionsExchangeFuture.msgs field is not cleared after exchange.
> Easy fix.
> * GridDhtPartitionsSingleMessage.partCntrsBytes is serialized as object and
> takes large amount of heap.Could be fixed by implementing more efficient
> serialization.
> * BinaryMemoryAllocatorChunk heap buffer is not shrinked during exchange due
> to large message size. WIth 128 threads in sys pool it may take up to 7G of
> heap on exchange process(I observer 52M message size). This could be fixed
> by reducing max exchange message size.
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