lhotari commented on issue #9917:
URL: https://github.com/apache/pulsar/issues/9917#issuecomment-800216031
Flaky-test:
org.apache.pulsar.broker.transaction.buffer.TransactionLowWaterMarkTest.testTransactionBufferLowWaterMark
Number of failures: 4
org.apache.pulsar.broker.transaction.buffer.TransactionLowWaterMarkTest is
flaky. The testTransactionBufferLowWaterMark test method fails sporadically.
```
java.util.concurrent.ExecutionException:
org.apache.pulsar.client.api.transaction.TransactionCoordinatorClientException$CoordinatorNotFoundException:
Transaction coordinator with id 1 not found!
at
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
at
org.apache.pulsar.broker.transaction.buffer.TransactionLowWaterMarkTest.testTransactionBufferLowWaterMark(TransactionLowWaterMarkTest.java:112)
```
Usage tip: To enable automatic navigation to failure message, open the
following links with CTRL/CMD-click.
[example failure
2021-03-10T17:10:30.8366630Z](https://github.com/apache/pulsar/runs/2078510614?check_suite_focus=true#step:8:218)
[example failure
2021-03-10T09:34:52.3286338Z](https://github.com/apache/pulsar/runs/2075280116?check_suite_focus=true#step:8:218)
[example failure
2021-03-10T08:26:25.7066594Z](https://github.com/apache/pulsar/runs/2074659722?check_suite_focus=true#step:8:226)
[example failure
2021-03-05T00:00:21.5891527Z](https://github.com/apache/pulsar/runs/2035678338?check_suite_focus=true#step:8:228)
<details>
<summary>Full exception stacktrace</summary>
<code><pre>
java.util.concurrent.ExecutionException:
org.apache.pulsar.client.api.transaction.TransactionCoordinatorClientException$CoordinatorNotFoundException:
Transaction coordinator with id 1 not found!
at
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
at
org.apache.pulsar.broker.transaction.buffer.TransactionLowWaterMarkTest.testTransactionBufferLowWaterMark(TransactionLowWaterMarkTest.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at
org.testng.internal.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:45)
at
org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:73)
at
org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by:
org.apache.pulsar.client.api.transaction.TransactionCoordinatorClientException$CoordinatorNotFoundException:
Transaction coordinator with id 1 not found!
at
org.apache.pulsar.client.impl.TransactionMetaStoreHandler.getExceptionByServerError(TransactionMetaStoreHandler.java:347)
at
org.apache.pulsar.client.impl.TransactionMetaStoreHandler.handleNewTxnResponse(TransactionMetaStoreHandler.java:157)
at
org.apache.pulsar.client.impl.ClientCnx.handleNewTxnResponse(ClientCnx.java:927)
at
org.apache.pulsar.common.protocol.PulsarDecoder.channelRead(PulsarDecoder.java:371)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:792)
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378)
at
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
... 1 more
</pre></code>
</details>
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