aloyszhang opened a new issue #7476:
URL: https://github.com/apache/pulsar/issues/7476
**Describe the bug**
Discovery service can't find active broker when all brokers are running well.
`21:05:33.529 [pulsar-discovery-io-2-1] WARN
org.apache.pulsar.discovery.service.ServerConnection - [/100.76.40.78:34900]
Failed to get next active broker No active broker is available
org.apache.pulsar.broker.PulsarServerException: No active broker is available
at
org.apache.pulsar.discovery.service.BrokerDiscoveryProvider.nextBroker(BrokerDiscoveryProvider.java:95)
~[org.apache.pulsar-pulsar-discovery-service-2.6.0-SNAPSHOT.jar:2.6.0-SNAPSHOT]
at
org.apache.pulsar.discovery.service.ServerConnection.sendLookupResponse(ServerConnection.java:136)
[org.apache.pulsar-pulsar-discovery-service-2.6.0-SNAPSHOT.jar:2.6.0-SNAPSHOT]
at
org.apache.pulsar.discovery.service.ServerConnection.handleLookup(ServerConnection.java:127)
[org.apache.pulsar-pulsar-discovery-service-2.6.0-SNAPSHOT.jar:2.6.0-SNAPSHOT]
at
org.apache.pulsar.common.protocol.PulsarDecoder.channelRead(PulsarDecoder.java:126)
[org.apache.pulsar-pulsar-common-2.6.0-SNAPSHOT.jar:2.6.0-SNAPSHOT]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321)
[io.netty-netty-codec-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295)
[io.netty-netty-codec-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
[io.netty-netty-transport-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:792)
[io.netty-netty-transport-native-epoll-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475)
[io.netty-netty-transport-native-epoll-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378)
[io.netty-netty-transport-native-epoll-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
[io.netty-netty-common-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
[io.netty-netty-common-4.1.45.Final.jar:4.1.45.Final]
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
[io.netty-netty-common-4.1.45.Final.jar:4.1.45.Final]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]`
**To Reproduce**
After restart the discovery service , wo can't reproduce it
**Expected behavior**
Discovery service should be work well.
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