chenhongSZ opened a new pull request, #23081:
URL: https://github.com/apache/pulsar/pull/23081
### Motivation
we have two brokerUrls(one is dead) in PulsarClient serviceUrl, it is
working well without enabling transactions.
`
# broker test.pulsar.com:6651 is dead
PulsarClient client = PulsarClient.builder()
//.enableTransaction(true)
.serviceUrl("pulsar://test.pulsar.com:6650,test.pulsar.com:6651")
.build();
`
If enabling transactions
`
# broker test.pulsar.com:6651 is dead
PulsarClient client = PulsarClient.builder()
.enableTransaction(true)
.serviceUrl("pulsar://test.pulsar.com:6650,test.pulsar.com:6651")
.build();
`
the following error occurs and the `PulsarClient` init fails, It will not
retry the other brokerUrl
`
2024-07-27T00:52:27,787 - ERROR -
[pulsar-client-io-1-1:TransactionMetaStoreHandler@120] - Transaction meta
handler with transaction coordinator id 14 connection failed.
org.apache.pulsar.client.api.PulsarClientException:
java.util.concurrent.CompletionException:
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused:
test.pulsar.com/127.0.0.1:6651
at
org.apache.pulsar.client.impl.ConnectionPool.lambda$createConnection$14(ConnectionPool.java:311)
~[classes/:?]
at
io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:566)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.util.concurrent.CompletionException:
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused:
test.pulsar.com/127.0.0.1:6651
at
java.util.concurrent.CompletableFuture.encodeRelay(CompletableFuture.java:368)
~[?:?]
at
java.util.concurrent.CompletableFuture.completeRelay(CompletableFuture.java:377)
~[?:?]
at
java.util.concurrent.CompletableFuture$UniRelay.tryFire(CompletableFuture.java:1097)
~[?:?]
at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
~[?:?]
at
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2162)
~[?:?]
at
org.apache.pulsar.common.util.netty.ChannelFutures.lambda$toCompletableFuture$0(ChannelFutures.java:58)
~[classes/:?]
at
io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:583)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:559)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:636)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:629)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:118)
~[netty-common-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:326)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:342)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:776)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
... 4 more
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException:
Connection refused: test.pulsar.com/127.0.0.1:6651
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
at sun.nio.ch.Net.pollConnectNow(Net.java:672) ~[?:?]
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946) ~[?:?]
at
io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:337)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:339)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:776)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
~[netty-transport-4.1.108.Final.jar:4.1.108.Final]
... 4 more
`
The root cause is that the `TransactionCoordinatorClient` doesn't support
retry.
### Modifications
support retry in `TransactionCoordinatorClient`.
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