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Laszlo Bodor commented on HIVE-17852: ------------------------------------- list_bucket_dml_10 failures are related, I'm going to check > remove support for list bucketing "stored as directories" in 3.0 > ---------------------------------------------------------------- > > Key: HIVE-17852 > URL: https://issues.apache.org/jira/browse/HIVE-17852 > Project: Hive > Issue Type: Bug > Reporter: Sergey Shelukhin > Assignee: Laszlo Bodor > Priority: Major > Attachments: HIVE-17852.01.patch > > > From the email thread: > 1) LB, when stored as directories, adds a lot of low-level complexity to Hive > tables that has to be accounted for in many places in the code where the > files are written or modified - from FSOP to ACID/replication/export. > 2) While working on some FSOP code I noticed that some of that logic is > broken - e.g. the duplicate file removal from tasks, a pretty fundamental > correctness feature in Hive, may be broken. LB also doesn’t appear to be > compatible with e.g. regular bucketing. > 3) The feature hasn’t seen development activity in a while; it also doesn’t > appear to be used a lot. > Keeping with the theme of cleaning up “legacy” code for 3.0, I was proposing > we remove it. > (2) also suggested that, if needed, it might be easier to implement similar > functionality by adding some flexibility to partitions (which LB directories > look like anyway); that would also keep the logic on a higher level of > abstraction (split generation, partition pruning) as opposed to many > low-level places like FSOP, etc. -- This message was sent by Atlassian JIRA (v7.6.3#76005)