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Posted to commits@beam.apache.org by "Vassil Kolarov (JIRA)" <ji...@apache.org> on 2017/04/04 09:15:41 UTC
[jira] [Commented] (BEAM-1829) MQTT message compression not working
on Rapsberry Pi
[ https://issues.apache.org/jira/browse/BEAM-1829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15954877#comment-15954877 ]
Vassil Kolarov commented on BEAM-1829:
--------------------------------------
Hi,
Everything seems good with 0.5.0 and 0.6.0. However, I have problem with the HEAD branch. After receiving 10 messages (just the digits from 0 to 9), I got:
Apr 04, 2017 9:53:53 AM org.apache.activemq.broker.BrokerService stop
INFO: Apache ActiveMQ 5.14.0 (localhost, ID:desktop-102016-46309-1491296007388-0:1) is shutting down
{code}
java.lang.RuntimeException: org.apache.beam.sdk.coders.CoderException: 109 unexpected extra bytes after decoding org.apache.beam.sdk.io.mqtt.MqttIO$MqttCheckpointMark@79aa5a4
at org.apache.beam.runners.direct.DirectRunner$DirectPipelineResult.waitUntilFinish(DirectRunner.java:458)
at org.apache.beam.runners.direct.DirectRunner$DirectPipelineResult.waitUntilFinish(DirectRunner.java:427)
at org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:297)
at org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:68)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:266)
at org.apache.beam.examples.mqtt.MqttPipelineTest.testPipeline(MqttPipelineTest.java:155)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:287)
at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:287)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.apache.beam.sdk.coders.CoderException: 109 unexpected extra bytes after decoding org.apache.beam.sdk.io.mqtt.MqttIO$MqttCheckpointMark@79aa5a4
at org.apache.beam.sdk.util.CoderUtils.decodeFromByteArray(CoderUtils.java:145)
at org.apache.beam.sdk.util.CoderUtils.decodeFromByteArray(CoderUtils.java:136)
at org.apache.beam.sdk.util.CoderUtils.clone(CoderUtils.java:185)
at org.apache.beam.runners.direct.UnboundedReadEvaluatorFactory$UnboundedReadEvaluator.getReader(UnboundedReadEvaluatorFactory.java:192)
at org.apache.beam.runners.direct.UnboundedReadEvaluatorFactory$UnboundedReadEvaluator.processElement(UnboundedReadEvaluatorFactory.java:128)
at org.apache.beam.runners.direct.TransformExecutor.processElements(TransformExecutor.java:139)
at org.apache.beam.runners.direct.TransformExecutor.run(TransformExecutor.java:107)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}
This is with 0.7.0-SNAPSHOT, compiled from source, with no changes.
Here is the test pipeline:
{code}
public Pipeline createPipeline() throws Exception {
final int limit = conf.resolve(options).getInt("pipeline.limit");;
PipelineOptions pipelineOptions = PipelineOptionsFactory.create();
Pipeline p = Pipeline.create(pipelineOptions);
p.apply(MqttIO.read()
.withConnectionConfiguration(
MqttIO.ConnectionConfiguration.create(
"tcp://" + MQTT_HOST + ":" + MQTT_PORT,
MQTT_TOPIC,
MQTT_CLIENT_ID))
).setCoder(ByteArrayCoder.of())
.apply(ParDo.of(new DoFn<byte[], byte[]>() {
@ProcessElement
public void processElement(ProcessContext c) {
LOG.info("Got message: {}", new String(c.element()));
Integer i = Integer.parseInt(new String(c.element()));
if(i > limit){
c.output(i.toString().getBytes());
}
}
})).setCoder(ByteArrayCoder.of())
.apply(MqttIO.write()
.withConnectionConfiguration(
MqttIO.ConnectionConfiguration.create(
"tcp://" + REMOTE_MQTT_HOST + ":" + REMOTE_MQTT_PORT,
REMOTE_MQTT_TOPIC)));
return p;
}
{code}
and the message publisher:
{code}
public void publisher() throws Exception {
MQTT client = new MQTT();
client.setHost("tcp://"+host+":" + port);
final BlockingConnection publishConnection = client.blockingConnection();
publishConnection.connect();
Thread publisherThread = new Thread() {
public void run() {
try {
for (int i = 0; i < 2000000; i++) {
publishConnection.publish("test_topic", Integer.toString(i).getBytes(),
QoS.AT_LEAST_ONCE, false);
Thread.sleep(1000);
}
} catch (Exception e) {
// nothing to do
}
}
};
publisherThread.start();
publisherThread.join();
}
{code}
> MQTT message compression not working on Rapsberry Pi
> ----------------------------------------------------
>
> Key: BEAM-1829
> URL: https://issues.apache.org/jira/browse/BEAM-1829
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-extensions
> Affects Versions: 0.6.0
> Reporter: Vassil Kolarov
> Assignee: Jean-Baptiste Onofré
> Labels: MQTT, Snappy
>
> Most probably due to this bug: https://github.com/xerial/snappy-java/issues/147, the following exception is raised, when running on Raspberry Pi:
> Exception in thread "main" java.lang.UnsatisfiedLinkError: /root/~/tmp/snappy-1.1.2-3c6134d1-26c5-4fb0-b6c9-669d4848d15b-libsnappyjava.so: /root/~/tmp/snappy-1.1.2-3c6134d1-26c5-4fb0-b6c9-669d4848d15b-libsn
> appyjava.so: cannot open shared object file: No such file or directory
> at java.lang.ClassLoader$NativeLibrary.load(Native Method)
> at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1929)
> at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1814)
> at java.lang.Runtime.load0(Runtime.java:809)
> at java.lang.System.load(System.java:1083)
> at org.xerial.snappy.SnappyLoader.loadNativeLibrary(SnappyLoader.java:174)
> at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:152)
> at org.xerial.snappy.Snappy.<clinit>(Snappy.java:46)
> at org.xerial.snappy.SnappyOutputStream.<init>(SnappyOutputStream.java:97)
> at org.xerial.snappy.SnappyOutputStream.<init>(SnappyOutputStream.java:89)
> at org.xerial.snappy.SnappyOutputStream.<init>(SnappyOutputStream.java:79)
> at org.apache.beam.sdk.util.SerializableUtils.serializeToByteArray(SerializableUtils.java:48)
> at org.apache.beam.sdk.util.SerializableUtils.ensureSerializable(SerializableUtils.java:83)
> at org.apache.beam.sdk.io.Read$Unbounded.<init>(Read.java:141)
> at org.apache.beam.sdk.io.Read$Unbounded.<init>(Read.java:136)
> at org.apache.beam.sdk.io.Read.from(Read.java:56)
> at org.apache.beam.sdk.io.mqtt.MqttIO$Read.expand(MqttIO.java:274)
> at org.apache.beam.sdk.io.mqtt.MqttIO$Read.expand(MqttIO.java:221)
> at org.apache.beam.sdk.runners.PipelineRunner.apply(PipelineRunner.java:76)
> at org.apache.beam.runners.direct.DirectRunner.apply(DirectRunner.java:296)
> at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:388)
> at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:302)
> at org.apache.beam.sdk.values.PBegin.apply(PBegin.java:47)
> at org.apache.beam.sdk.Pipeline.apply(Pipeline.java:152)
> at org.blah.beam.MqttPipeline.main(MqttPipeline.java:37)
> Increasing the snappy version to 1.1.4 will probably fix the issue.
> Best regards,
> Vassil
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