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https://issues.apache.org/jira/browse/CASSANDRA-13831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16152731#comment-16152731
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Aleksey Yeschenko commented on CASSANDRA-13831:
-----------------------------------------------
This makes the tests pass but still shits all over the logs.
{code}
[junit] WARN [main] 2017-09-04 16:33:51,193 NettyFactory.java:98 - epoll
not availble {}
[junit] java.lang.ExceptionInInitializerError: null
[junit] at io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:33)
~[netty-all-4.1.14.Final.jar:4.1.14.Final]
[junit] at
org.apache.cassandra.service.NativeTransportService.useEpoll(NativeTransportService.java:162)
~[main/:na]
[junit] at
org.apache.cassandra.net.async.NettyFactoryTest.<clinit>(NettyFactoryTest.java:65)
~[classes/:na]
[junit] at java.lang.Class.forName0(Native Method) ~[na:1.8.0_144]
[junit] at java.lang.Class.forName(Class.java:264) ~[na:1.8.0_144]
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:380)
~[ant-junit.jar:na]
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1182)
~[ant-junit.jar:na]
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:1033)
~[ant-junit.jar:na]
[junit] Caused by: java.lang.IllegalStateException: Only supported on Linux
[junit] at
io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:189)
~[netty-all-4.1.14.Final.jar:4.1.14.Final]
[junit] at io.netty.channel.epoll.Native.<clinit>(Native.java:61)
~[netty-all-4.1.14.Final.jar:4.1.14.Final]
[junit] ... 8 common frames omitted
{code}
Could you maybe modify {{NativeTransportService.useEpoll()}} to look at the OS
first before trying to call {{Epoll.isAvailable()}}, or fix it some other way?
> NettyFactoryTest is failing in trunk on MacOS
> ---------------------------------------------
>
> Key: CASSANDRA-13831
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13831
> Project: Cassandra
> Issue Type: Bug
> Components: Testing
> Reporter: Aleksey Yeschenko
> Assignee: Jason Brown
> Priority: Minor
> Fix For: 4.x
>
>
> Example failure:
> {code}
> [junit] Testcase:
> getEventLoopGroup_EpollWithoutIoRatioBoost(org.apache.cassandra.net.async.NettyFactoryTest):
> Caused an ERROR
> [junit] failed to load the required native library
> [junit] java.lang.UnsatisfiedLinkError: failed to load the required
> native library
> [junit] at
> io.netty.channel.epoll.Epoll.ensureAvailability(Epoll.java:78)
> [junit] at
> io.netty.channel.epoll.EpollEventLoop.<clinit>(EpollEventLoop.java:53)
> [junit] at
> io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:134)
> [junit] at
> io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:35)
> [junit] at
> io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
> [junit] at
> io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)
> [junit] at
> io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)
> [junit] at
> io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
> [junit] at
> io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:104)
> [junit] at
> io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:91)
> [junit] at
> io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:68)
> [junit] at
> org.apache.cassandra.net.async.NettyFactory.getEventLoopGroup(NettyFactory.java:175)
> [junit] at
> org.apache.cassandra.net.async.NettyFactoryTest.getEventLoopGroup_Epoll(NettyFactoryTest.java:187)
> [junit] at
> org.apache.cassandra.net.async.NettyFactoryTest.getEventLoopGroup_EpollWithoutIoRatioBoost(NettyFactoryTest.java:205)
> [junit] Caused by: java.lang.ExceptionInInitializerError
> [junit] at io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:33)
> [junit] at
> org.apache.cassandra.service.NativeTransportService.useEpoll(NativeTransportService.java:162)
> [junit] at
> org.apache.cassandra.net.async.NettyFactory.<clinit>(NettyFactory.java:94)
> [junit] at
> org.apache.cassandra.net.async.NettyFactoryTest.getEventLoopGroup_Nio(NettyFactoryTest.java:216)
> [junit] at
> org.apache.cassandra.net.async.NettyFactoryTest.getEventLoopGroup_NioWithoutIoRatioBoost(NettyFactoryTest.java:211)
> [junit] Caused by: java.lang.IllegalStateException: Only supported on
> Linux
> [junit] at
> io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:189)
> [junit] at io.netty.channel.epoll.Native.<clinit>(Native.java:61)
> {code}
> It's obviously caused by epoll being unavailable on MacOS, but the tests
> should still be made to pass.
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