[IMPALA-9064] Inserts to ACID tables should always increase writeId

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: Impala 3.3.0
• Component/s: Frontend
• Labels: impala-acid
• Epic Color: ghx-label-12
• Assignee: Unassigned
• Reporter: Csaba Ringhofer
• Created: 17/Oct/19 17:52
• Updated: 07/Sep/23 22:16

Description

We kind of assumed that the table's writeId is increased during allocateWriteId or commit, so we don't have to set it with a separate API call during INSERT. https://gerrit.cloudera.org/#/c/14037/ sets it in some specific cases (if STATS_ACCURATE is set, because in this case we call alter_table/partitions to remove), but it is generally not touched.

I am not sure that it is Impala's duty to set it, it would be probably better if HMS would do it by itself.