Philip Zeyliger has posted comments on this change. (
http://gerrit.cloudera.org:8080/9017 )
Change subject: IMPALA-6388: Fix the Union node number of hosts estimation
......................................................................
Patch Set 4: -Code-Review
We're seeing some failures with:
Row of size 761.51 KB could not be materialized in plan node with id 14.
Increase the max_row_size query option (currently 512.00 KB) to process larger
rows.
The failing query is:
insert overwrite table test_insert_huge_vals
select cast(l_orderkey as string) from tpch.lineitem
union select group_concat(concat(s_name, s_address, s_phone)) from
tpch.supplier
union select group_concat(concat(s_name, s_address, s_phone, s_name)) from
tpch.supplier;
The other failing query is:
insert overwrite table test_insert_huge_vals
select cast(l_orderkey as string) from tpch.lineitem
union select group_concat(concat(s_name, s_address, s_phone)) from
tpch.supplier
union select group_concat(concat(s_name, s_address,
s_phone, s_name)) from tpch.supplier;
(And there are a few more variants.)
Given that this change affected union queries and the queries that are failing
are all union queries, I don't think that this is simply flaky tests. That
said, I wasn't able to reproduce this locally on my first try.
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I51e1ecca8dbc84b2b5a72708667b2799d00279f0
Gerrit-Change-Number: 9017
Gerrit-PatchSet: 4
Gerrit-Owner: Taras Bobrovytsky <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Philip Zeyliger <[email protected]>
Gerrit-Reviewer: Taras Bobrovytsky <[email protected]>
Gerrit-Comment-Date: Tue, 16 Jan 2018 04:07:16 +0000
Gerrit-HasComments: No
