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https://issues.apache.org/jira/browse/IMPALA-13896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17938291#comment-17938291
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Joe McDonnell commented on IMPALA-13896:
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It looks like it is doing reads of the right size, but not short-circuit reads:
{noformat}
-- 2025-03-24 16:42:12,232 INFO MainThread:
impala-server.io-mgr.bytes-read: 3074568808 -> 3074571007
-- 2025-03-24 16:42:12,232 INFO MainThread:
impala-server.io-mgr.short-circuit-bytes-read: 1815888721 ->
1815888721{noformat}
For this test job, tuple caching is not enable for this test, so this could
happen for other test jobs.
(The test is completely broken if tuple cache is enabled, so we would need to
skip it for that circumstance.)
> TestIOMetrics::test_local_read failed in build with tuple_cache
> ---------------------------------------------------------------
>
> Key: IMPALA-13896
> URL: https://issues.apache.org/jira/browse/IMPALA-13896
> Project: IMPALA
> Issue Type: Bug
> Reporter: Zoltán Borók-Nagy
> Assignee: Michael Smith
> Priority: Major
> Labels: broken-build
>
> TestIOMetrics::test_local_read failed in build with tuple_cache.
> h3. Error Message
> {noformat}
> assert (1815888721 + 2199) == 1815888721
> {noformat}
> h3. Stacktrace
> {noformat}
> query_test/test_io_metrics.py:79: in test_local_read
> assert(before + nation_data_file_length == after)
> E assert (1815888721 + 2199) == 1815888721
> {noformat}
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