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https://issues.apache.org/jira/browse/FALCON-2227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15763872#comment-15763872
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Praveen Adlakha commented on FALCON-2227:
-----------------------------------------
While we are at it please remove the OUT.get().println statements we are
printing the error twice that way
{code}
$ bin/falcon extension -submit -extensionName abcd -jobName test -file
../test.xml
Hadoop home is set, adding libraries from
'/usr/hdp/2.2.0.0-2041/hadoop/bin/hadoop classpath' into falcon classpath
Listening for transport dt_socket at address: 5007
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/usr/local/falcon/falcon-0.11-SNAPSHOT/client/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/usr/local/falcon/falcon-0.11-SNAPSHOT/client/lib/falcon-shell-0.11-SNAPSHOT.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/usr/hdp/2.2.0.0-2041/hadoop/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Error in building the extension
ERROR: Failed to prepare entities for the given extension
{code}
> Intitutive error handling in Falcon Client
> -------------------------------------------
>
> Key: FALCON-2227
> URL: https://issues.apache.org/jira/browse/FALCON-2227
> Project: Falcon
> Issue Type: Sub-task
> Components: extensions
> Reporter: Praveen Adlakha
>
> In submitting extensions we are catching some error and not throwing it:
> {code}
> catch (Exception e) {
> OUT.get().println("Error in building the extension");
> throw new FalconCLIException("Failed to prepare entities for
> the given extension");
> }
> if (entities == null || entities.isEmpty()) {
> OUT.get().println("No entities got built");
> throw new FalconCLIException("Failed to prepare entities for
> the given extension");
> }
> {code}
> Its pretty intuitive to know the error.Please wrap the exception.
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