Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

[Raspberry Pi B+] Maven package timeout error (tests)

See original GitHub issue

Hi,

I’m trying to compile Milo on Raspberry Pi (B+) with the command mvn clean compile package and the package phase freezes (infinitely) on the stack.server.tcpUaTcpStackServer test (see below, LISTING1).

The problem is caused by short timeout = 5 seconds in the file stack/client/handlers/UaTcpClientAcknowledgeHandler.java (line 162) where the RPi is not able to fulfill the test in time. Therefore, I tried to increase the timeout to 10 secs first (LISTING 3) and the test results (errors) revealed elapsed times about 30-50 secs. After increasing the timeout to 120 secs (LISTING 2) all tests passed.

I’ve monitored the 1/5/15-minute load and during the compile phase, the load was about 1.5, however, in the test/package phase it peaked to the values of 12 (5min. avg to 8). This clearly shows, that the processor (1core) is overloaded by the tests.

I’ve made more tests and the timeout of 12 seconds is the cutting time (3 times OK, 2 times did not package). Therefore, minimum of 15 secs should be used.

The question is whether is it ok to:

Increase the timeout (do we break some OPC UA requirements?)
Should we increase it globally, based on ARCH, or on some metrics (i.e. based on some performance test, time elapsed for the first test, etc…).
Or, at least, the test should fail explicitly (and not get stuck). If the test fails, you can get an Issue ticket, if tests do not finish, it is not a good sign.

Failing test can diverge many people, interested in the Milo project, to concurrent projects. Therefore I think, this should be fixed (or, at least for RPI/arm explicitly mentioned, i.e.: tutorial on how to compile for RPi).

IMHO, also a tutorial how to create a simple server on RPi and client on desktop (i.e. for home temperature(s) monitoring would be helpful). According to my experience, people (incl. me) are not sure where to start with OPC UA. And, provided that many RPi users are students/beginners, they would find it difficult to learn by (uncommented) examples and unit-tests.

Thanks for fixing,

=== LISTING 2: DIFF, 120 secs ===

$ git diff
diff --git a/opc-ua-stack/stack-client/src/main/java/org/eclipse/milo/opcua/stack/client/handlers/UaTcpClientAcknowledgeHandler.java b/opc-ua-stack/stack-client/src/main/java/org/eclipse/milo/opcua/stack/client/handlers/UaTcpClientAcknowledgeHandler.java
index 65da3bd..62e049e 100644
--- a/opc-ua-stack/stack-client/src/main/java/org/eclipse/milo/opcua/stack/client/handlers/UaTcpClientAcknowledgeHandler.java
+++ b/opc-ua-stack/stack-client/src/main/java/org/eclipse/milo/opcua/stack/client/handlers/UaTcpClientAcknowledgeHandler.java
@@ -159,7 +159,7 @@ public class UaTcpClientAcknowledgeHandler extends ByteToMessageCodec<UaRequestF
                     ctx.close();
                 }
             },
-            5, TimeUnit.SECONDS);
+            30, TimeUnit.SECONDS);
     }
 
     @Override

=== LISTING 3: Timeout: 10 sec ===

Output of mvn -e -X package -Dorg.slf4j.simpleLogger.defaultLogLevel=debug Output for timeout of 10 sec:

[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic256Sha256/SignAndEncrypt]
Tests run: 198, Failures: 1, Errors: 0, Skipped: 197, Time elapsed: 51.208 sec <<< FAILURE! - in TestSuite
setUpClientServer(org.eclipse.milo.opcua.stack.client.config.UaTcpStackClientConfigTest)  Time elapsed: 37.477 sec  <<< FAILURE!
java.util.concurrent.ExecutionException: UaException: status=Bad_Timeout, message=timed out waiting for acknowledge
Caused by: org.eclipse.milo.opcua.stack.core.UaException: timed out waiting for acknowledge

=== LISTING 1 === Original sources: ends with errorr (original timeout of 5 sec).

Maven home: /usr/share/maven
Java version: 1.8.0_121, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_GB, platform encoding: UTF-8
OS name: "linux", version: "4.9.11+", arch: "arm", family: "unix"
...
...
...
-------------------------------------------------------
 T E S T S
-------------------------------------------------------
[DEBUG] boot classpath:  /home/pi/.m2/repository/org/apache/maven/surefire/surefire-booter/2.19.1/surefire-booter-2.19.1.jar  /home/pi/.m2/repository/org/apache/maven/surefire/surefire-api/2.19.1/surefire-api-2.19.1.jar  /home/pi/milo/opc-ua-stack/stack-tests/target/test-classes  /home/pi/milo/opc-ua-stack/stack-tests/target/classes  /home/pi/milo/opc-ua-stack/stack-client/target/stack-client-0.1.1-SNAPSHOT.jar  /home/pi/milo/opc-ua-stack/stack-core/target/stack-core-0.1.1-SNAPSHOT.jar  /home/pi/.m2/repository/com/google/guava/guava/19.0/guava-19.0.jar  /home/pi/.m2/repository/com/google/code/findbugs/jsr305/3.0.1/jsr305-3.0.1.jar  /home/pi/.m2/repository/io/netty/netty-codec/4.0.36.Final/netty-codec-4.0.36.Final.jar  /home/pi/.m2/repository/io/netty/netty-transport/4.0.36.Final/netty-transport-4.0.36.Final.jar  /home/pi/.m2/repository/io/netty/netty-handler/4.0.36.Final/netty-handler-4.0.36.Final.jar  /home/pi/.m2/repository/io/netty/netty-buffer/4.0.36.Final/netty-buffer-4.0.36.Final.jar  /home/pi/.m2/
repository/io/netty/netty-common/4.0.36.Final/netty-common-4.0.36.Final.jar  /home/pi/.m2/repository/org/jooq/jool/0.9.10/jool-0.9.10.jar  /home/pi/milo/opc-ua-stack/stack-server/target/stack-server-0.1.1-SNAPSHOT.jar  /home/pi/.m2/repository/org/testng/testng/6.9.10/testng-6.9.10.jar  /home/pi/.m2/repository/com/beust/jcommander/1.48/jcommander-1.48.jar  /home/pi/.m2/repository/org/beanshell/bsh/2.0b4/bsh-2.0b4.jar  /home/pi/.m2/repository/org/slf4j/slf4j-simple/1.7.21/slf4j-simple-1.7.21.jar  /home/pi/.m2/repository/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar  /home/pi/.m2/repository/org/apache/maven/surefire/surefire-testng-utils/2.19.1/surefire-testng-utils-2.19.1.jar  /home/pi/.m2/repository/org/apache/maven/surefire/surefire-grouper/2.19.1/surefire-grouper-2.19.1.jar  /home/pi/.m2/repository/org/apache/maven/surefire/surefire-testng/2.19.1/surefire-testng-2.19.1.jar  /home/pi/.m2/repository/org/apache/maven/surefire/common-java5/2.19.1/common-java5-2.19.1.jar
[DEBUG] boot(compact) classpath:  surefire-booter-2.19.1.jar  surefire-api-2.19.1.jar  test-classes  classes  stack-client-0.1.1-SNAPSHOT.jar  stack-core-0.1.1-SNAPSHOT.jar  guava-19.0.jar  jsr305-3.0.1.jar  netty-codec-4.0.36.Final.jar  netty-transport-4.0.36.Final.jar  netty-handler-4.0.36.Final.jar  netty-buffer-4.0.36.Final.jar  netty-common-4.0.36.Final.jar  jool-0.9.10.jar  stack-server-0.1.1-SNAPSHOT.jar  testng-6.9.10.jar  jcommander-1.48.jar  bsh-2.0b4.jar  slf4j-simple-1.7.21.jar  slf4j-api-1.7.21.jar  surefire-testng-utils-2.19.1.jar  surefire-grouper-2.19.1.jar  surefire-testng-2.19.1.jar  common-java5-2.19.1.jar
Forking command line: /bin/sh -c cd /home/pi/milo/opc-ua-stack/stack-tests && /usr/lib/jvm/java-8-oracle/jre/bin/java -jar /home/pi/milo/opc-ua-stack/stack-tests/target/surefire/surefirebooter3992314949420998452.jar /home/pi/milo/opc-ua-stack/stack-tests/target/surefire/surefire7737490835056517435tmp /home/pi/milo/opc-ua-stack/stack-tests/target/surefire/surefire_13917799363228237987tmp
Running TestSuite
Configuring TestNG with: TestNG60Configurator
[main] INFO org.eclipse.milo.opcua.stack.core.Stack - Successfully removed cryptography restrictions.
[main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
[main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
[main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
[main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
[main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: false
[main] DEBUG io.netty.util.internal.PlatformDependent - Java version: 8
[main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noUnsafe: false
[main] DEBUG io.netty.util.internal.PlatformDependent - sun.misc.Unsafe: available
[main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noJavassist: false
[main] DEBUG io.netty.util.internal.PlatformDependent - Javassist: unavailable
[main] DEBUG io.netty.util.internal.PlatformDependent - You don't have Javassist in your class path or you don't have enough permission to load dynamically generated classes.  Please check the configuration for better performance.
[main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.tmpdir: /tmp (java.io.tmpdir)
[main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.bitMode: 32 (sun.arch.data.model)
[main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false
[main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.level: simple
[main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.maxRecords: 4
[main] DEBUG io.netty.channel.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 2
[main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false
[main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 1
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 1
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768
[main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192
[main] DEBUG io.netty.util.internal.ThreadLocalRandom - -Dio.netty.initialSeedUniquifier: 0x6770957f05d5a212 (took 14 ms)
[main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: unpooled
[main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.threadLocalDirectBufferSize: 65536
[main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384
[main] DEBUG io.netty.util.NetUtil - Loopback interface: lo (lo, 0:0:0:0:0:0:0:1%lo)
[main] DEBUG io.netty.util.NetUtil - /proc/sys/net/core/somaxconn: 128
[ua-netty-event-loop-0] DEBUG org.eclipse.milo.opcua.stack.server.tcp.SocketServers$SocketServer - [id: 0x0a14fe61] REGISTERED
[ua-netty-event-loop-0] DEBUG org.eclipse.milo.opcua.stack.server.tcp.SocketServers$SocketServer - [id: 0x0a14fe61] BIND(localhost/127.0.0.1:12685)
[ua-netty-event-loop-0] DEBUG org.eclipse.milo.opcua.stack.server.tcp.SocketServers$SocketServer - [id: 0x0a14fe61, L:/127.0.0.1:12685] ACTIVE
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [None/None]
[main] DEBUG org.eclipse.milo.opcua.stack.server.tcp.SocketServers$SocketServer - Added server at path: "/test"
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic128Rsa15/Sign]
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic256/Sign]
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic256Sha256/Sign]
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic128Rsa15/SignAndEncrypt]
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic256/SignAndEncrypt]
[main] INFO org.eclipse.milo.opcua.stack.server.tcp.UaTcpStackServer - opc.tcp://localhost:12685/test bound to localhost:12685 [Basic256Sha256/SignAndEncrypt]
[ua-netty-event-loop-0] DEBUG org.eclipse.milo.opcua.stack.server.tcp.SocketServers$SocketServer - [id: 0x0a14fe61, L:/127.0.0.1:12685] RECEIVED: [id: 0xd68718cc, L:/127.0.0.1:12685 - R:/127.0.0.1:40258]
[ua-netty-event-loop-1] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.bytebuf.checkAccessible: true
[Thread-0] DEBUG org.eclipse.milo.opcua.stack.client.ClientChannelManager - Channel bootstrap failed: timed out waiting for acknowledge
UaException: status=Bad_Timeout, message=timed out waiting for acknowledge
	at org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler.lambda$startHelloTimeout$4(UaTcpClientAcknowledgeHandler.java:156)
	at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:581)
	at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:655)
	at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:367)
	at java.lang.Thread.run(Thread.java:745)

=== System Info ==== System info:

 $ java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) Client VM (build 25.121-b13, mixed mode)

$ mvn -version
Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.8.0_121, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_GB, platform encoding: UTF-8
OS name: "linux", version: "4.9.11+", arch: "arm", family: "unix"

$ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 8.0 (jessie)
Release:        8.0
Codename:       jessie

$ uname -a
Linux raspberrypi 4.9.11+ #971 Mon Feb 20 20:40:26 GMT 2017 armv6l GNU/Linux

=== Note (amd64) === On amd64 architecture (Debian Jessie), everything passes (even with increased timeout).

Issue Analytics

State:
Created 7 years ago
Comments:5 (4 by maintainers)

Top GitHub Comments

1reaction

kevinherroncommented, Mar 2, 2017

If you can, try building the ack-timeout branch https://github.com/eclipse/milo/tree/ack-timeout on your RPi and see if the tests still timeout.

0reactions

kevinherroncommented, Mar 3, 2017

I have a Pi here somewhere, I’ll have to futz around this weekend to see just how slow some of the tests run and what the timeout needs to be.

I do keep a poorly updated UA server for RPi here: https://github.com/kevinherron/pi-server

Kind of a mess as it was mostly used for a demo, but it does know how to read from a GrovePi temperature and humidity sensor…

Top Results From Across the Web

maven test fails with timeout error #4152 - apache/druid - GitHub

The maven test failed for me. It could be very well my environment, but I'm seeing this error. BlockingPoolTest was added in Feb...

[SOLVED] How to Fix the ERR_CONNECTION_TIMED_OUT ...

This tutorial is a step-by-step guide with screenshots that will explain the top 11 methods to fix the 'Err_Connection_Timed_Out' Error:.

Java Maven project - Error R10 (Boot timeout) -> Web process ...

Java Maven project - Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 90 seconds of launch - Stack...

504 Gateway Timeout Error: What It Is and How to Fix It

If a 504 Gateway Timeout Error occurs, the issue isn't related to the app installed on your phone or local testing device.

Maven – Guide to Advanced HTTP Transport Configuration

readTimeout: default to 1,800,000ms (~30 minutes) (see section Read time out below); default Preemptive Authentication only with PUT (GET doesn't use anymore ...