Nick Dimiduk created HBASE-25058: ------------------------------------ Summary: Investigate netty: "jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable" Key: HBASE-25058 URL: https://issues.apache.org/jira/browse/HBASE-25058 Project: HBase Issue Type: Sub-task Components: Performance, rpc Affects Versions: 2.3.0, 3.0.0-alpha-1, 2.4.0 Reporter: Nick Dimiduk
Running on JDK11, I noticed this in the debug logging. It looks like netty is using {{sun.misc.Unsafe}} instead of the new location on jdk11. {noformat} 2020-09-17 00:21:53,318 DEBUG org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0: jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable java.lang.IllegalAccessException: class org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0$6 cannot access class jdk.internal.misc.Unsafe (in module java.base) because module java.base does not export jdk.internal.misc to unnamed module @78461bc4 at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361) at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591) at java.base/java.lang.reflect.Method.invoke(Method.java:558) at org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0$6.run(PlatformDependent0.java:335) at java.base/java.security.AccessController.doPrivileged(Native Method) at org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:326) at org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:289) at org.apache.hbase.thirdparty.io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92) at org.apache.hbase.thirdparty.io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:228) at org.apache.hbase.thirdparty.io.netty.channel.epoll.Native.<clinit>(Native.java:58) at org.apache.hbase.thirdparty.io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:39) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.<clinit>(EpollEventLoop.java:51) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:150) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:35) at org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84) at org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58) at org.apache.hbase.thirdparty.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47) at org.apache.hbase.thirdparty.io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:112) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:99) at org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:76) at org.apache.hadoop.hbase.util.NettyEventLoopGroupConfig.<init>(NettyEventLoopGroupConfig.java:58) at org.apache.hadoop.hbase.regionserver.HRegionServer.setupNetty(HRegionServer.java:713) at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:569) at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:524) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:3054) at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:236) at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149) at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:3072) {noformat} We should try to make this new API accessible to netty for future compatibility. -- This message was sent by Atlassian Jira (v8.3.4#803005)