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https://issues.apache.org/jira/browse/CASSANDRA-13396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16152569#comment-16152569
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Eric Hubert commented on CASSANDRA-13396:
-----------------------------------------
We faced the same underlying issue after upgrading from Cassandra 3.9 to 3.11.0
when using Cassandra embedded for integration testing using JUnit.
As our application uses a different logging backend and we did not want to
switch it and provide appropriate redundant configuration for logback, we
excluded logback dependencies and only provided our implementation to also
avoid any warnings about duplicate bindings. This setup worked fine with
Cassandra 3.9, but fails with Cassandra >= 3.10; the server does not startup,
because of the missing classes. So in this case any patch working with
instanceof checks still attempting to load those classes without specific
try/catch would obviously also fail.
In addition to SMAwareReconfigureOnChangeFilter in
org.apache.cassandra.cql3.functions.ThreadAwareSecurityManager.install() using
multiple logback internals (added with CASSANDRA-12535) I also found the change
with CASSANDRA-12509 adding ch.qos.logback.core.hook.DelayingShutdownHook in
StorageService#initServer problematic.
Would it be an alternative to handle all access to the underlying logging
implementation via reflection?
E.g. attempting to load logback classes and only if this does not fail, perform
implementation specific actions via reflection (otherwise log a warning about
missing logback presence, which can be ignored in integration test setups). We
are mostly talking about one-time initialization, so the performance impact
should be really negligible.
This solution would require users to properly exclude logback logging libs if
they want to use other sf4j implementation bindings. Providing multiple logging
implementations with sl4fj bindings anyway triggers a warning which should be
handled.
> Cassandra 3.10: ClassCastException in ThreadAwareSecurityManager
> ----------------------------------------------------------------
>
> Key: CASSANDRA-13396
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13396
> Project: Cassandra
> Issue Type: Bug
> Reporter: Edward Capriolo
> Assignee: Eugene Fedotov
> Priority: Minor
>
> https://www.mail-archive.com/[email protected]/msg51603.html
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