Shaofeng SHI created KYLIN-1861:
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Summary: Hive may fail to create flat table with "GC overhead
error"
Key: KYLIN-1861
URL: https://issues.apache.org/jira/browse/KYLIN-1861
Project: Kylin
Issue Type: Test
Reporter: Shaofeng SHI
in conf/kylin_hive_conf.xml, it enables
"hive.auto.convert.join.noconditionaltask", which is the optimization about
converting common join into mapjoin based on the input file size, and give a
big value (300000000, 300MB) to
"hive.auto.convert.join.noconditionaltask.size". So if the memory of the mapper
isn't enough, it will cause the error.
To fix the error, user can reduce the
"hive.auto.convert.join.noconditionaltask.size" in conf/kylin_hive_conf.xml,
and then retry the job.
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