[
https://issues.apache.org/jira/browse/IMPALA-10714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418733#comment-17418733
]
Riza Suminto commented on IMPALA-10714:
---------------------------------------
For note, this is the scenario that lead to this bug:
# Only 1 page left in stream. This is a read-write page.
# GetNext() has fully read the page, but does NOT attach the buffer to output
row batch because it is a read-write page.
# Stream writer insert more rows, but the read-write page can not fit any more
rows. Therefore, new pages are created.
# Stream writer call UnpinStream().
# UnpinStream() call NextReadPage(), which in turn fail the assertion
"read_iter->read_page_->attached_to_output_batch".
> Intermittent DCHECK(read_iter->read_page_->attached_to_output_batch) in tests
> -----------------------------------------------------------------------------
>
> Key: IMPALA-10714
> URL: https://issues.apache.org/jira/browse/IMPALA-10714
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Zoltán Borók-Nagy
> Assignee: Riza Suminto
> Priority: Major
> Labels: broken-build, flaky
>
> TestSpillingDebugActionDimensions::test_spilling_large_rows hit DCHECK in
> exhaustive build.
> The Impala git hash was: e11237e29 IMPALA-10197: Add KUDU_REPLICA_SELECTION
> query option
> In impalad.FATAL:
> {noformat}
> F0525 12:45:49.307780 13122 buffered-tuple-stream.cc:531]
> 564af337ca503984:f1209fc400000000] Check failed:
> read_iter->read_page_->attached_to_output_batch
> {noformat}
> Query 564af337ca503984:f1209fc400000000 was:
> {noformat}
> I0525 12:45:48.474383 17878 impala-server.cc:1324]
> 564af337ca503984:f1209fc400000000] Registered query
> query_id=564af337ca503984:f1209fc400000000
> session_id=9e4875c17adf5e7a:eb72d33dc39b5288
> I0525 12:45:48.474486 17878 Frontend.java:1618]
> 564af337ca503984:f1209fc400000000] Analyzing query: select
> group_concat(string_col), length(bigstr) from bigstrs2
> group by bigstr db: test_spilling_large_rows_119f6bb1
> {noformat}
> I couldn't reproduce the issue locally.
>
>
> {code:java}
> be/src/runtime/buffered-tuple-stream.cc:531
> 530 DCHECK_NE(&*read_iter->read_page_, write_page_);
> 531 DCHECK(read_iter->read_page_->attached_to_output_batch);
> 532 pages_.pop_front();
> {code}
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
