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https://issues.apache.org/jira/browse/IMPALA-10230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17214359#comment-17214359
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logan zheng commented on IMPALA-10230:
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when more and more tables and more and more table partitions,bad stats is more
difficult to find,and sometimes the table partitions will reach millions.
And before the default value of num_nulls is -1, the default value in 3.3 and
3.4 is 0. So I think IMPALA-9699 is a better solution.
> column stats num_nulls less than -1
> -----------------------------------
>
> Key: IMPALA-10230
> URL: https://issues.apache.org/jira/browse/IMPALA-10230
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog
> Affects Versions: Impala 3.4.0
> Reporter: logan zheng
> Priority: Critical
> Labels: newbie, ramp-up
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> when update impala 3.2.0(CDH6.3.2 ) to asf3.4.0 ,after when "increment stats
> default.test partition(xx=yyyy)":
> {noformat}
> ERROR: TableLoadingException: Failed to load metadata for table: default.test
> CAUSED BY: IllegalStateException: ColumnStats{avgSize_=13.0,
> avgSerializedSize_=25.0, maxSize_=19, numDistinct_=12, numNulls_=-2}{noformat}
> The table default.test already exists in impala 3.2.0, and has been running
> for a long time, and has also been added stats.
>
>
>
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