Application Continuity Consumes High Memory
(Doc ID 2340859.1)
Last updated on JULY 29, 2019
Applies to:JDBC - Version 126.96.36.199.0 and later
Information in this document applies to any platform.
Running a test with the JDBC replay driver(oracle.jdbc.replay.OracleDataSourceImpl), the used memory is seen to be much higher than the memory used by the non-replay driver.
The heapdump captured reports a huge number of the CallHistoryEntry objects being the top consumers:
3,697,404 instances of "oracle.jdbc.replay.driver.TxnFailoverManagerImpl$CallHistoryEntry",
loaded by "java.net.URLClassLoader @ 0xe004df60" occupy 710,018,816 (95.42%) bytes.
These instances are referenced from one instance of "oracle.ucp.jdbc.proxy.PreparedStatementProxyFactory",
loaded by "java.net.URLClassLoader @ 0xe004df60"
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