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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2022/03/02 09:33:29 UTC
[GitHub] [pulsar] lbenc135 opened a new issue #14534: SIGSEGV error in docker (Java client)
lbenc135 opened a new issue #14534:
URL: https://github.com/apache/pulsar/issues/14534
**Describe the bug**
Pulsar Java client crashes with the message below when trying to create a Pulsar client. I reproduced the crash with versions 2.9.1 and 2.8.2, but same code works on 2.7.1. Also the crash doesn't happen when running on a local machine, but happens when running in a docker container (`openjdk:14-alpine`).
Logs:
```
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000000000003fd6, pid=1, tid=7
#
# JRE version: OpenJDK Runtime Environment (14.0+33) (build 14-ea+33)
# Java VM: OpenJDK 64-Bit Server VM (14-ea+33, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
# Problematic frame:
# C 0x0000000000003fd6
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P %E" (or dumping to /src/services/rule_engine/core.1)
#
# An error report file with more information is saved as:
# /src/services/rule_engine/hs_err_pid1.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
```
Full log:
[hs_err_pid1.log](https://github.com/apache/pulsar/files/8167998/hs_err_pid1.log)
Code:
```
client = PulsarClient.builder()
.serviceUrl(BaseSettings.PULSAR_URL) // "pulsar://localhost:6650"
.loadConf(clientSettings) // empty HashMap
.build();
```
**To Reproduce**
Not sure. The description should hopefully provide enough info.
**Expected behavior**
Doesn't crash.
**Desktop (please complete the following information):**
Full info available in the full log file (under `S Y S T E M` near the end).
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[GitHub] [pulsar] lhotari commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056700954
Possibly related to #11415 #11224 #10798
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[GitHub] [pulsar] lhotari edited a comment on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari edited a comment on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056942080
When using pulsar-client-original, you might need to also use dependencyManagement in maven or Gradle's [version alignment features](https://docs.gradle.org/current/userguide/dependency_version_alignment.html#version_alignment) to ensure that there aren't mixed versions of Netty and Netty netty-tcnative-boringssl-static libraries .
For maven, something like this:
```xml
<properties>
<netty.version>4.1.74.Final</netty.version>
<netty-tc-native.version>2.0.48.Final</netty-tc-native.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-bom</artifactId>
<version>${netty.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-tcnative-boringssl-static</artifactId>
<version>${netty-tc-native.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-client-original</artifactId>
<version>2.8.2</version>
</dependency>
</dependencies>
```
@lbenc135 Are you using maven or gradle?
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[GitHub] [pulsar] lhotari commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056942080
When using pulsar-client-original, you might need to also use dependencyManagement in maven or Gradle's [version alignment features](https://docs.gradle.org/current/userguide/dependency_version_alignment.html#version_alignment) to ensure that there aren't mixed versions of Netty and Netty netty-tcnative-boringssl-static libraries .
For maven, something like this:
```xml
<properties>
<netty.version>4.1.74.Final</netty.version>
<netty-tc-native.version>2.0.48.Final</netty-tc-native.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-bom</artifactId>
<version>${netty.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-tcnative-boringssl-static</artifactId>
<version>${netty-tc-native.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-client-original</artifactId>
<version>2.8.2</version>
</dependency>
</dependencies>
```
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[GitHub] [pulsar] lhotari commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056697706
@lbenc135 Can you try if the same problem reproduces when you don't use Alpine based OpenJDK base image? Please test with `openjdk:14`.
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[GitHub] [pulsar] lhotari edited a comment on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari edited a comment on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056703007
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[GitHub] [pulsar] lhotari commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056703007
https://github.com/netty/netty-tcnative/issues/649#issuecomment-905524734
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[GitHub] [pulsar] lhotari commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lhotari commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056934378
> @lhotari `openjdk:14` works, but `eclipse-temurin:17-alpine` does not. In any case, changing the base image is a bit tricky for us. Is there any plan to fix this for alpine images?
Since this is an open source project, it will depend on someone contributing a fix for this problem. One form of contributing is contributing a simple repro case. That could be a separate GitHub repository which contains the repro and instructions.
There might be workarounds. Some issues might be caused by shaded library versions conflicting with the application. Here's one issue about this in netty: https://github.com/netty/netty/issues/11879
For Pulsar, it's possible to use the unshaded client. The coordinates are here:
https://search.maven.org/artifact/org.apache.pulsar/pulsar-client-original/2.8.2/jar
for maven
```xml
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-client-original</artifactId>
<version>2.8.2</version>
</dependency>
```
for gradle
```groovy
implementation 'org.apache.pulsar:pulsar-client-original:2.8.2'
```
Does your application use Netty or contain shaded Netty?
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[GitHub] [pulsar] lbenc135 commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lbenc135 commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1081610959
@lhotari Sorry for the delay. We're using Maven and the solution with `pulsar-client-original` and Netty dependency management worked with `openjdk:14-alpine`. Thanks for the tip!
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[GitHub] [pulsar] lbenc135 commented on issue #14534: SIGSEGV error in docker (Java client)
Posted by GitBox <gi...@apache.org>.
lbenc135 commented on issue #14534:
URL: https://github.com/apache/pulsar/issues/14534#issuecomment-1056844129
@lhotari `openjdk:14` works, but `eclipse-temurin:17-alpine` does not. In any case, changing the base image is a bit tricky for us. Is there any plan to fix this for alpine images?
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