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https://issues.apache.org/jira/browse/HBASE-28254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17799165#comment-17799165
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Hudson commented on HBASE-28254:
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Results for branch branch-2.5
[build #453 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.5/453/]:
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> Flaky test: TestTableShell
> --------------------------
>
> Key: HBASE-28254
> URL: https://issues.apache.org/jira/browse/HBASE-28254
> Project: HBase
> Issue Type: Test
> Components: flakies, integration tests
> Reporter: Andor Molnar
> Assignee: Andor Molnar
> Priority: Major
> Fix For: 2.6.0, 2.4.18, 3.0.0-beta-1, 2.5.8
>
>
> The test is running the following Ruby commands:
> {noformat}
> # Instert test data
> @test_table.put(1, "x:a", 1)
> @test_table.put(2, "x:raw1", 11)
> @test_table.put(2, "x:raw1", 11)
> @test_table.put(2, "x:raw1", 11)
> @test_table.put(2, "x:raw1", 11)
> {noformat}
> And validate the versions with:
> {noformat}
> args = { VERSIONS => 10, RAW => true } # Since 4 versions of row with rowkey
> 2 is been added, we can use any number >= 4 for VERSIONS to scan all 4
> versions.
> num_rows = 0
> @test_table._scan_internal(args) do # Raw Scan
> num_rows += 1
> end
> # 5 since , 1 from row key '1' and other 4 from row key '4'
> assert_equal(num_rows, 5,
> 'Num rows scanned without RAW/VERSIONS are not 5')
> {noformat}
> Which sometimes (almost always on fast machines) fails, because it only finds
> 3 versions out of 4. I believe this due to commands are running too fast and
> inserts data with same timestamp, so HBase cannot distinguish them. I'd like
> to add some sleep between puts to fix it.
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