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https://issues.apache.org/jira/browse/CASSANDRA-15929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17153672#comment-17153672
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Benjamin Lerer commented on CASSANDRA-15929:
--------------------------------------------
The patch looks good to me. Thanks [~dcapwell].
> Startup fails with NoClassDefFoundError after CASSANDRA-15884
> -------------------------------------------------------------
>
> Key: CASSANDRA-15929
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15929
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Startup and Shutdown
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: 4.0-alpha
>
>
> CASSANDRA-15884 added logic to detect if the native lib of lz4 was properly
> loaded and to log a warning if this was not the case, it seems that the catch
> for this didn’t handle the class loading issue that also happens in this case.
> {code}
> ERROR [main] 2020-07-07 22:49:32,560 CassandraDaemon.java:800 - Exception
> encountered during startup
> java.lang.NoClassDefFoundError: Could not initialize class
> net.jpountz.lz4.LZ4JNI
> at net.jpountz.lz4.LZ4JNICompressor.compress(LZ4JNICompressor.java:36)
> at net.jpountz.lz4.LZ4Factory.<init>(LZ4Factory.java:207)
> at net.jpountz.lz4.LZ4Factory.instance(LZ4Factory.java:51)
> at net.jpountz.lz4.LZ4Factory.nativeInstance(LZ4Factory.java:91)
> at
> org.apache.cassandra.service.StartupChecks.lambda$static$0(StartupChecks.java:149)
> at
> org.apache.cassandra.service.StartupChecks.verify(StartupChecks.java:127)
> at
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:211)
> at
> org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:661)
> at
> org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:778)
> {code}
> After patching, the following is the behavior
> WARN [main] 2020-07-07 22:50:45,018 StartupChecks.java:153 - lz4-java was
> unable to load native libraries; this will lower the performance of lz4
> (network/sstables/etc.): Could not initialize class net.jpountz.lz4.LZ4JNI
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