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https://issues.apache.org/jira/browse/KUDU-2390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16797715#comment-16797715
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Adar Dembo commented on KUDU-2390:
----------------------------------
This sometimes manifests as a failure in the randomGet() function in ITClient:
{noformat}
15:58:33.042 [ERROR - scanner-test-thread] (ITClient.java:128) Random get got 0
or many rows 0 for key 97305
{noformat}
Might be a different issue, but seems quite similar.
> ITClient fails with "Row count unexpectedly decreased"
> ------------------------------------------------------
>
> Key: KUDU-2390
> URL: https://issues.apache.org/jira/browse/KUDU-2390
> Project: Kudu
> Issue Type: Bug
> Components: java, test
> Affects Versions: 1.7.0, 1.8.0
> Reporter: Todd Lipcon
> Priority: Critical
> Attachments: Stdout.txt.gz, TEST-org.apache.kudu.client.ITClient.xml,
> TEST-org.apache.kudu.client.ITClient.xml.gz,
> TEST-org.apache.kudu.client.ITClient.xml.xz
>
>
> On master, hit the following failure of ITClient:
> {code}
> 20:05:05.407 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:934)
> AsyncKuduScanner$Response(scannerId = "6ddf5d0da48241aea4b9eb51645716cc",
> data = RowResultIterator for 27600 rows, more = true, responseScanTimestamp =
> 6234957022375723008) for scanner
> 20:05:05.407 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:447) Scanner
> "6ddf5d0da48241aea4b9eb51645716cc" opened on
> d78cb5506f6e4e17bd54fdaf1819a8a2@[729d64003e7740cabb650f8f6aea4af6(127.1.76.194:60468),7a2e5f9b2be9497fadc30b81a6a50b24(127.1.76.19
> 20:05:05.409 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:934)
> AsyncKuduScanner$Response(scannerId = "", data = RowResultIterator for 7314
> rows, more = false) for scanner
> KuduScanner(table=org.apache.kudu.client.ITClient-1522206255318, tablet=d78c
> 20:05:05.409 [INFO - Thread-4] (ITClient.java:397) New row count 90114
> 20:05:05.414 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:934)
> AsyncKuduScanner$Response(scannerId = "c230614ad13e40478254b785995d1d7c",
> data = RowResultIterator for 27600 rows, more = true, responseScanTimestamp =
> 6234957022413987840) for scanner
> 20:05:05.414 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:447) Scanner
> "c230614ad13e40478254b785995d1d7c" opened on
> d78cb5506f6e4e17bd54fdaf1819a8a2@[729d64003e7740cabb650f8f6aea4af6(127.1.76.194:60468),7a2e5f9b2be9497fadc30b81a6a50b24(127.1.76.19
> 20:05:05.419 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:934)
> AsyncKuduScanner$Response(scannerId = "", data = RowResultIterator for 27600
> rows, more = true) for scanner
> KuduScanner(table=org.apache.kudu.client.ITClient-1522206255318, tablet=d78c
> 20:05:05.420 [DEBUG - New I/O worker #17] (AsyncKuduScanner.java:934)
> AsyncKuduScanner$Response(scannerId = "", data = RowResultIterator for 7342
> rows, more = false) for scanner
> KuduScanner(table=org.apache.kudu.client.ITClient-1522206255318, tablet=d78c
> 20:05:05.421 [ERROR - Thread-4] (ITClient.java:134) Row count unexpectedly
> decreased from 90114to 62542
> {code}
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