[
https://issues.apache.org/jira/browse/HBASE-16011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Youngjoon Kim updated HBASE-16011:
----------------------------------
Attachment: snapshot_bug_test.patch
Attach a patch adding two tests. These tests throw RuntimeException which
indicates duplicate rows were produced.
{panel}
$ mvn -Dtest=org.apache.hadoop.hbase.client.TestTableSnapshotScanner test
...
Running org.apache.hadoop.hbase.client.TestTableSnapshotScanner
Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 59.814 sec <<<
FAILURE! - in org.apache.hadoop.hbase.client.TestTableSnapshotScanner
testDuplicateResultsBug(org.apache.hadoop.hbase.client.TestTableSnapshotScanner)
Time elapsed: 12.473 sec <<< ERROR!
java.lang.RuntimeException: Row:bbb has a seen count of 2 instead of 1
at
org.apache.hadoop.hbase.HBaseTestingUtility$SeenRowTracker.validate(HBaseTestingUtility.java:2048)
at
org.apache.hadoop.hbase.client.TestTableSnapshotScanner.verifyScanner(TestTableSnapshotScanner.java:223)
at
org.apache.hadoop.hbase.client.TestTableSnapshotScanner.testDuplicateResultsBug(TestTableSnapshotScanner.java:155)
Results :
Tests in error:
TestTableSnapshotScanner.testDuplicateResultsBug:155->verifyScanner:223 »
Runtime
Tests run: 4, Failures: 0, Errors: 1, Skipped: 0
...
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{panel}
$ mvn -Dtest=org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat test
...
Running org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat
Tests run: 9, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 134.654 sec <<<
FAILURE! - in org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat
testDuplicateResultsBug(org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat)
Time elapsed: 13.552 sec <<< ERROR!
java.lang.RuntimeException: Row:bbb has a seen count of 2 instead of 1
at
org.apache.hadoop.hbase.HBaseTestingUtility$SeenRowTracker.validate(HBaseTestingUtility.java:2048)
at
org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat.verifyWithMockedMapReduce(TestTableSnapshotInputFormat.java:317)
at
org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat.testDuplicateResultsBug(TestTableSnapshotInputFormat.java:273)
Results :
Tests in error:
TestTableSnapshotInputFormat.testDuplicateResultsBug:273->verifyWithMockedMapReduce:317
» Runtime
Tests run: 9, Failures: 0, Errors: 1, Skipped: 0
...
{panel}
> TableSnapshotScanner and TableSnapshotInputFormat can produce duplicate rows
> ----------------------------------------------------------------------------
>
> Key: HBASE-16011
> URL: https://issues.apache.org/jira/browse/HBASE-16011
> Project: HBase
> Issue Type: Bug
> Components: snapshots
> Reporter: Youngjoon Kim
> Attachments: snapshot_bug_test.patch
>
>
> A snapshot of (non-pre) split table can include both a parent region and
> daughter regions. If run TableSnapshotScanner or TableSnapshotInputFormat on
> the such snapshot, duplicate rows are produced.
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