Jon Meredith created CASSANDRA-15240:
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Summary: Reinstate support for native libraries for in-JVM dtests
Key: CASSANDRA-15240
URL: https://issues.apache.org/jira/browse/CASSANDRA-15240
Project: Cassandra
Issue Type: Improvement
Components: Test/dtest
Reporter: Jon Meredith
While working on CASSANDRA-15170 native libraries for libc functions, epoll
support and openssl were observed holding gcroots to the instance class loaders
when in-JVM dtest {{with(NETWORK)}} support was enabled. The solution for
CASSANDRA-15170 was to disable native libraries to get everything working, but
this is not ideal because in-JVM tests will not be testing the real code on
that platform.
One proposed solution from [~ifesdjeen] and [~benedict] is to introduce an
additional classloader per-Cassandra version that can be used for loading
native libraries and share the {{CassandraVersionClassLoader}} by each instance
of that version, enabling the {{InstanceClassLoader}} to be garbage collected.
{noformat}
CLibrary
com.sun.jna.Native.registeredClasses
com.sun.jna.Native.options
com.sun.jna.Native.registredLibraries
Netty
io.netty.channel.ChannelException
io.netty.channel.unix.DatagramSocketAddress
io.netty.channel.unix.PeerCredentials
io.netty.internal.tcnative.CertificateCallbackTask
io.netty.internal.tcnative.CertificateVerifierTask
io.netty.internal.tcnative.SSLPrivateKeyMethodDecryptTask
io.netty.internal.tcnative.SSLPrivateKeyMethodSignTask
io.netty.internal.tcnative.SSLPrivateKeyMethodTask
io.netty.internal.tcnative.SSLTask
{noformat}
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