Matteo Merli created BOOKKEEPER-578:
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Summary: LedgerCacheImpl is reserving 1/3 of Heap size but
allocates NonHeap memory
Key: BOOKKEEPER-578
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-578
Project: Bookkeeper
Issue Type: Bug
Components: bookkeeper-server
Reporter: Matteo Merli
Priority: Minor
By default the page limit parameter is set to -1, which means to assign 1/3 of
Heap space to the LedgerCache. Each LedgerEntryPage is then allocating the
memory outside the heap (ByteBuffer.allocateDirect()).
This makes BK to use more memory than the -XmxNN configured setting. Is there
any particular reason for the LedgerEntryPage buffer to be allocated outside
the java heap? Could that be changed?
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