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https://issues.apache.org/jira/browse/KUDU-1736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18123436#comment-18123436
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Alexey Serbin commented on KUDU-1736:
-------------------------------------
Another manifestation of the problem in the
{{MultiThreadedTabletTest/3.DeleteAndReinsert}} scenario in {{mt-tablet-test}}:
{noformat}
I20261002 22:25:37.190269 5677 mvcc.cc:204] Tried to move back new op lower
bound from 5774 to 5773. Current Snapshot: MvccSnapshot[applied={T|T < 5681 or
(T in
{5685,5687,5688,5689,5690,5691,5686,5683,5684,5692,5694,5695,5697,5698,5699,5693,5696,5703,5701,5702,5705,5706,5707,5708,5709,5711,5712,5710,5713,5714,5715,5716,5719,5717,5720,5721,5704,5723,5725,5724,5726,5727,5718,5729,5730,5731,5732,5733,5734,5735,5728,5700,5737,5738,5739,5741,5742,5743,5736,5747,5745,5746,5744,5748,5749,5750,5751,5752,5753,5754,5756,5755,5758,5740,5759,5760,5762,5761,5763,5764,5765,5766,5682,5768,5770,5771,5772})}]
F20261002 22:25:37.198201 5663 delta_tracker.cc:298] Check failed:
first_copy->delta_stats().min_timestamp() >=
second_copy->delta_stats().min_timestamp() (5376 vs. 5378) Found out-of-order
deltas: [{3454419405819039235 (ts range=[5376, 5589], delete_count=[0],
reinsert_count=[0], update_counts_by_col_id=[12:14])}, {3454419405819039215 (ts
range=[5378, 5378], delete_count=[0], reinsert_count=[0],
update_counts_by_col_id=[12:1])}]: type = 1
*** Check failure stack trace: ***
*** Aborted at 1790979937 (unix time) try "date -d @1790979937" if you are
using GNU date ***
I20261002 22:25:37.198807 5669 mvcc.cc:204] Tried to move back new op lower
bound from 5799 to 5779. Current Snapshot: MvccSnapshot[applied={T|T < 5722 or
(T in
{5723,5725,5724,5726,5727,5729,5730,5731,5732,5733,5734,5735,5728,5737,5738,5739,5741,5742,5743,5736,5747,5745,5746,5744,5748,5749,5750,5751,5752,5753,5754,5756,5755,5758,5740,5759,5760,5762,5761,5763,5764,5765,5766,5768,5770,5771,5772,5773,5775,5776,5777,5778,5767,5769,5781,5782,5784,5785,5783,5787,5786,5789,5790,5788,5791,5792,5793,5795,5796,5798,5797,5799,5774,5757})}]
{noformat}
The log is attached: [^mt-tablet-test.20261005.txt.xz].
> kudu crash in debug build: unordered undo delta
> -----------------------------------------------
>
> Key: KUDU-1736
> URL: https://issues.apache.org/jira/browse/KUDU-1736
> Project: Kudu
> Issue Type: Bug
> Components: tablet
> Affects Versions: 1.7.0, 1.8.0, 1.7.1, 1.9.0, 1.10.0, 1.10.1, 1.12.0,
> 1.11.1, 1.13.0, 1.14.0, 1.15.0, 1.16.0, 1.17.0
> Reporter: zhangsong
> Priority: Critical
> Labels: stability
> Attachments: mt-tablet-test-20171123.txt.xz,
> mt-tablet-test-20191227.txt.xz, mt-tablet-test.1.txt.xz,
> mt-tablet-test.20261005.txt.xz, mt-tablet-test.3-20260511.txt.xz,
> mt-tablet-test.3.txt, mt-tablet-test.txt, mt-tablet-test.txt.gz
>
>
> in jd cluster we met kudu-tserver crash with fatal messages described as
> follow:
> Check failed: last_key_.CompareTo<UNDO>(key) <= 0 must insert undo deltas in
> sorted order (ascending key, then descending ts): got key (row
> 1422@tx6052042821982183424) after (row 1422@tx6052042821953155072)
> This is a dcheck which should not failed.
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