xuesong172500 commented on issue #6330: Bug in netty 4.1.43 prevents from using Linux native Epoll transport URL: https://github.com/apache/pulsar/issues/6330#issuecomment-590761133 start broker with function, show errors. 16:11:01.231 [main] WARN org.apache.distributedlog.impl.BKNamespaceDriver - Could not use Netty Epoll event loop for bookie server: java.lang.NoClassDefFoundError: Could not initialize class io.netty.channel.epoll.EpollEventLoop at io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:142) ~[io.netty-netty-transport-native-epoll-4.1.43.Final.jar:4.1.43.Final] at io.netty.channel.epoll.EpollEventLoopGroup.newChild(EpollEventLoopGroup.java:35) ~[io.netty-netty-transport-native-epoll-4.1.43.Final.jar:4.1.43.Final] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84) ~[io.netty-netty-common-4.1.43.Final.jar:4.1.43.Final] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58) ~[io.netty-netty-common-4.1.43.Final.jar:4.1.43.Final] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47) ~[io.netty-netty-common-4.1.43.Final.jar:4.1.43.Final] at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59) ~[io.netty-netty-transport-4.1.43.Final.jar:4.1.43.Final] at io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:104) ~[io.netty-netty-transport-native-epoll-4.1.43.Final.jar:4.1.43.Final] at io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:91) ~[io.netty-netty-transport-native-epoll-4.1.43.Final.jar:4.1.43.Final] at io.netty.channel.epoll.EpollEventLoopGroup.<init>(EpollEventLoopGroup.java:68) ~[io.netty-netty-transport-native-epoll-4.1.43.Final.jar:4.1.43.Final] at org.apache.distributedlog.impl.BKNamespaceDriver.getDefaultEventLoopGroup(BKNamespaceDriver.java:257) [org.apache.distributedlog-distributedlog-core-4.10.0.jar:4.10.0] at org.apache.distributedlog.impl.BKNamespaceDriver.initializeBookKeeperClients(BKNamespaceDriver.java:268) [org.apache.distributedlog-distributedlog-core-4.10.0.jar:4.10.0] at org.apache.distributedlog.impl.BKNamespaceDriver.initialize(BKNamespaceDriver.java:206) [org.apache.distributedlog-distributedlog-core-4.10.0.jar:4.10.0] at org.apache.distributedlog.api.namespace.NamespaceBuilder.build(NamespaceBuilder.java:239) [org.apache.distributedlog-distributedlog-core-4.10.0.jar:4.10.0] at org.apache.pulsar.functions.worker.WorkerService.start(WorkerService.java:105) [org.apache.pulsar-pulsar-functions-worker-2.5.0.jar:2.5.0] at org.apache.pulsar.broker.PulsarService.startWorkerService(PulsarService.java:1108) [org.apache.pulsar-pulsar-broker-2.5.0.jar:2.5.0] at org.apache.pulsar.broker.PulsarService.start(PulsarService.java:505) [org.apache.pulsar-pulsar-broker-2.5.0.jar:2.5.0] at org.apache.pulsar.PulsarBrokerStarter$BrokerStarter.start(PulsarBrokerStarter.java:264) [org.apache.pulsar-pulsar-broker-2.5.0.jar:2.5.0] at org.apache.pulsar.PulsarBrokerStarter.main(PulsarBrokerStarter.java:329) [org.apache.pulsar-pulsar-broker-2.5.0.jar:2.5.0]
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