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https://issues.apache.org/jira/browse/CASSANDRA-13072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16031149#comment-16031149
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Jeff Jirsa commented on CASSANDRA-13072:
----------------------------------------

Sorry, that's my fault for not being explicit. Here's my thinking:

2.2 and 3.0 are bug-fix-only. The only way this is a bug fix is if aarch64 is a 
supported platform.

It's not a supported platform because there are no tests for it.

Therefore, I don't see how this qualifies for either 2.2 or 3.0.

This belongs in 3.11 and trunk, unless someone can tell me why I'm wrong.

> Cassandra failed to run on Linux-aarch64
> ----------------------------------------
>
>                 Key: CASSANDRA-13072
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13072
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Hardware: ARM aarch64
> OS: Ubuntu 16.04.1 LTS
>            Reporter: Jun He
>            Assignee: Benjamin Lerer
>              Labels: incompatible
>         Attachments: compat_report.html
>
>
> Steps to reproduce:
> 1. Download cassandra latest source
> 2. Build it with "ant"
> 3. Run with "./bin/cassandra". Daemon is crashed with following error message:
> {quote}
> INFO  05:30:21 Initializing system.schema_functions
> INFO  05:30:21 Initializing system.schema_aggregates
> ERROR 05:30:22 Exception in thread Thread[MemtableFlushWriter:1,5,main]
> java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native
>         at 
> org.apache.cassandra.utils.memory.MemoryUtil.allocate(MemoryUtil.java:97) 
> ~[main/:na]
>         at org.apache.cassandra.io.util.Memory.<init>(Memory.java:74) 
> ~[main/:na]
>         at org.apache.cassandra.io.util.SafeMemory.<init>(SafeMemory.java:32) 
> ~[main/:na]
>         at 
> org.apache.cassandra.io.compress.CompressionMetadata$Writer.<init>(CompressionMetadata.java:316)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.compress.CompressionMetadata$Writer.open(CompressionMetadata.java:330)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.compress.CompressedSequentialWriter.<init>(CompressedSequentialWriter.java:76)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.util.SequentialWriter.open(SequentialWriter.java:163) 
> ~[main/:na]
>         at 
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.<init>(BigTableWriter.java:73)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.sstable.format.big.BigFormat$WriterFactory.open(BigFormat.java:93)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.sstable.format.SSTableWriter.create(SSTableWriter.java:96)
>  ~[main/:na]
>         at 
> org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.create(SimpleSSTableMultiWriter.java:114)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.compaction.AbstractCompactionStrategy.createSSTableMultiWriter(AbstractCompactionStrategy.java:519)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.compaction.CompactionStrategyManager.createSSTableMultiWriter(CompactionStrategyManager.java:497)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.ColumnFamilyStore.createSSTableMultiWriter(ColumnFamilyStore.java:480)
>  ~[main/:na]
>         at 
> org.apache.cassandra.db.Memtable.createFlushWriter(Memtable.java:439) 
> ~[main/:na]
>         at 
> org.apache.cassandra.db.Memtable.writeSortedContents(Memtable.java:371) 
> ~[main/:na]
>         at org.apache.cassandra.db.Memtable.flush(Memtable.java:332) 
> ~[main/:na]
>         at 
> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
>  ~[main/:na]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  ~[na:1.8.0_111]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  ~[na:1.8.0_111]
>         at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_111]
> {quote}
> Analyze:
> This issue is caused by bundled jna-4.0.0.jar which doesn't come with aarch64 
> native support. Replace lib/jna-4.0.0.jar with jna-4.2.0.jar from 
> http://central.maven.org/maven2/net/java/dev/jna/jna/4.2.0/ can fix this 
> problem.
> Attached is the binary compatibility report of jna.jar between 4.0 and 4.2. 
> The result is good (97.4%). So is there possibility to upgrade jna to 4.2.0 
> in upstream? Should there be any kind of tests to execute, please kindly 
> point me. Thanks a lot.



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