Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/22160 )

Change subject: [thirdparty] upgrade LZ4 up to 1.10.0 version
......................................................................


Patch Set 1:

> Please take a look at the failed tests as I could not find them in
 > flaky test dashboard.

I took a look at the dist-test results.

For the ASAN build, there are failures of already known flaky tests -- you can 
see exactly the same errors at 
http://dist-test.cloudera.org:8080/test_drilldown?test_name=alter_table-test 
(ASAN)

For RELEASE build, I took a look at KuduTxnsCliTest.TestBasicTxnsList.  Even if 
it hasn't been failing recently in flaky test runs, I can see how it could fail 
-- the follow-up workload can generate rows with the same primary key, and 
that's confirmed by the comment for the default write pattern in TestWorkload:

  enum WritePattern {
    // The default: insert random row keys. This may cause an occasional
    // duplicate, but with 32-bit keys, they won't be frequent.
    INSERT_RANDOM_ROWS,
    ...
  }

As for other tests, I guess that's something similar -- there are test-only 
bugs that don't manifest themselves often.  I'm about to file a JIRA item at 
least for the KuduTxnsCliTest.TestBasicTxnsList test.

I also built and ran ASAN-instrumented C++ tests locally on Ubuntu 20 machine 
with KUDU_ALLOW_SLOW_TESTS=1 a few times, and they passed.


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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ie1eff7e2977db007436ec82995cf30f3fd5472ca
Gerrit-Change-Number: 22160
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Abhishek Chennaka <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Mahesh Reddy <[email protected]>
Gerrit-Comment-Date: Wed, 04 Dec 2024 06:05:21 +0000
Gerrit-HasComments: No

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