September 2011
1 post
Some fun Hadoop and Hive Bugs
If you’re running Hadoop 0.20 with Hive 0.7 here are a couple of bugs that it’s useful to know about:
NullPointerException
If you have an external partitioned table, this could mean you forgot to recover the partitions before running the query:
ALTER TABLE sample RECOVER PARTITIONS;
MR jobs hanging on 0/0 completed map tasks
Creating an external table that points to an empty...