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[DocDB] Infinite loop detected error with system keys in reverse scan #15515

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arpang opened this issue Jan 5, 2023 · 0 comments
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[DocDB] Infinite loop detected error with system keys in reverse scan #15515

arpang opened this issue Jan 5, 2023 · 0 comments
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area/docdb YugabyteDB core features kind/bug This issue is a bug priority/medium Medium priority issue

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arpang commented Jan 5, 2023 •
edited by jira bot

Jira Link: DB-4907

Description

We hit "infinite loop detected" error when system keys are encountered in a reverse scan. The bug is that in reverse scan, instead of seeking to the previous DocKey, it seeks to the next one causing an infinite loop.

Internal reference: https://yugabyte.slack.com/archives/C03ULJYE0KG/p1672838276448609
@arpang arpang added area/docdb YugabyteDB core features status/awaiting-triage Issue awaiting triage labels Jan 5, 2023
@arpang arpang self-assigned this Jan 5, 2023
@yugabyte-ci yugabyte-ci added kind/bug This issue is a bug priority/medium Medium priority issue labels Jan 5, 2023
@arpang arpang removed the status/awaiting-triage Issue awaiting triage label Jan 5, 2023
arpang added a commit that referenced this issue Jan 5, 2023
@arpang
[#15515] DocDB: Fixes infinite loop detected error
70e7c79 
Summary: This diff fixes the infinite loop detected error which occurs when system keys are encountered in a reverse scan. The bug was that in reverse scan, instead of seeking to the previous DocKey, it was seeking to the next one causing an infinite loop.

Test Plan: ./yb_build.sh --skip-java --cxx-test docrowwiseiterator-test --gtest-filter=DocRowwiseIteratorTest.ClusteredFilterRangeWithTableTombstoneReverseScan

Reviewers: kpopali, skumar, tnayak

Reviewed By: tnayak

Subscribers: ybase

Differential Revision: https://phabricator.dev.yugabyte.com/D22098
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area/docdb YugabyteDB core features kind/bug This issue is a bug priority/medium Medium priority issue
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