[ERROR] Issue with Hadoop Indexer and null numeric dimensions

[ferristseng]

I'm running into an issue where the Hadoop Indexer is still treating null numeric dimensions as 0 in 0.13.0-incubating, even when the system property druid.generic.useDefaultValueForNull is set to false.

I dug a little bit into the code, and noticed that the Hadoop Indexer was not updated to treat null numeric dimensions in a SQL-compatible way:

https://github.com/apache/incubator-druid/blob/7e48593b5780c3bc4852d183dc473be283c84d25/indexing-hadoop/src/main/java/org/apache/druid/indexer/InputRowSerde.java#L179

I made a fix for the issue here:

#7020

[ferristseng]

Any ideas if this is needed in the future?

[jihoonson]

It looks a correct fix. @ferristseng are you planning raising a PR to fix this bug?

[ferristseng]

@jihoonson I made a PR for it, and it's been merged. I think it might be in the current release or in the next release!

[jihoonson]

@ferristseng oh #7020 is the fix for this issue. Thanks, it will be included in 0.14.1!