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https://issues.apache.org/jira/browse/IMPALA-9753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-9753 started by Csaba Ringhofer.
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> Possible bug in TRUNCATE of ACID tables on S3
> ---------------------------------------------
>
> Key: IMPALA-9753
> URL: https://issues.apache.org/jira/browse/IMPALA-9753
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Reporter: Csaba Ringhofer
> Assignee: Csaba Ringhofer
> Priority: Critical
>
> TRUNCATE TABLE doesn't seem to work on ACID tables in an S3 environment (with
> S3 guard)
> I couldn't reproduce it yet in Impala dev env, and I am not completely sure
> that the cause is actually S3, but found an operation that could possibly go
> wrong on S3:
> https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java#L2115
> Simply calling Create(Path) does create the file in HDFS, but I think that it
> is only created on S3 when the returned stream is closed.
> All related tests are skipped if the environment is S3, so it seems possible
> that the bug could slip through Impala's component tests.
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