[jira] [Created] (BIGTOP-3508) Sqoop bin script doesn't work on Debian 10 if libslf4j-java is installed

["Luca Toscano (Jira)" <ji...@apache.org>]

Luca Toscano created BIGTOP-3508:
------------------------------------

             Summary: Sqoop bin script doesn't work on Debian 10 if libslf4j-java is installed
                 Key: BIGTOP-3508
                 URL: https://issues.apache.org/jira/browse/BIGTOP-3508
             Project: Bigtop
          Issue Type: Bug
    Affects Versions: 1.5.0
            Reporter: Luca Toscano


Hi everybody,

The sqoop's default bin script (created via install_sqoop.sh afaics) leads to the following error on Debian 10 if libslf4j-java is installed:

```
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/lib/hadoop/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/maven3-slf4j-provider.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-jcl.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-jdk14.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-nop.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-simple.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/lib/hive/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Detected both log4j-over-slf4j.jar AND bound slf4j-log4j12.jar on the class path, preempting StackOverflowError. 
SLF4J: See also http://www.slf4j.org/codes.html#log4jDelegationLoop for more details.
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72)
        at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45)
        at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
        at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
        at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
        at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
        at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:671)
        at org.apache.sqoop.Sqoop.<clinit>(Sqoop.java:42)
Caused by: java.lang.IllegalStateException: Detected both log4j-over-slf4j.jar AND bound slf4j-log4j12.jar on the class path, preempting StackOverflowError. See also http://www.slf4j.org/codes.html#log4jDelegationLoop for more details.
        at org.slf4j.impl.Log4jLoggerFactory.<clinit>(Log4jLoggerFactory.java:54)
        ... 9 more
```

The issue seems to be this bit of code:

```
SQOOP_JARS=\`ls /var/lib/sqoop/*.jar /usr/share/java/*.jar 2>/dev/null\`
```

Since it blindly loads jars from /usr/share/java, and on Debian 10 I have:

```
elukey@stat1004:~$ ls /var/lib/sqoop/*.jar /usr/share/java/*.jar 2>/dev/null | tr " " "\n" | grep log4j
/usr/share/java/log4j-over-slf4j-1.7.25.jar
/usr/share/java/log4j-over-slf4j.jar
/usr/share/java/slf4j-log4j12-1.7.25.jar
/usr/share/java/slf4j-log4j12.jar
```

If I remove `/usr/share/java/log4j-over-slf4j.jar` the issue is gone, since the /usr/share/java/log4j-over-slf4j-1.7.25.jar is a symlink to it. The jars are brought by the libslf4j-java package.

I added a more detailed description in https://phabricator.wikimedia.org/T274866#6843187.

Should we filter the SQOOP_JARS jar list for this use case, or do you have a better idea?

Thanks in advance :)



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