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https://issues.apache.org/jira/browse/HBASE-20052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16375238#comment-16375238
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Ted Yu commented on HBASE-20052:
--------------------------------
HRegionFileSystem#createRegionOnFileSystem() is used in several tests, not just
in hbase2+ :
{code}
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/SnapshotManifestV1.java:
HRegionFileSystem snapshotRegionFs =
HRegionFileSystem.createRegionOnFileSystem(conf,
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java:
HRegionFileSystem regionFs =
HRegionFileSystem.createRegionOnFileSystem(conf, fs
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java:
HRegionFileSystem regionFs =
HRegionFileSystem.createRegionOnFileSystem(conf, fs
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java:
// HRegionFileSystem.createRegionOnFileSystem(conf, new
MockFileSystemForCreate(
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java:
HRegionFileSystem regionFs =
HRegionFileSystem.createRegionOnFileSystem(conf, fs
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java:
HRegionFileSystem regionFs =
HRegionFileSystem.createRegionOnFileSystem(conf, fs,
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java:
HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem(
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java:
HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem(
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java:
HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem(
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java:
HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem(
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java:
HRegionFileSystem cloneRegionFs =
HRegionFileSystem.createRegionOnFileSystem(
hbase-server/src/test/java/org/apache/hadoop/hbase/snapshot/SnapshotTestingUtils.java:
HRegionFileSystem rfs =
HRegionFileSystem.createRegionOnFileSystem(conf, fs, tabl
hbase-server/src/test/java/org/apache/hadoop/hbase/snapshot/SnapshotTestingUtils.java:
rfs = HRegionFileSystem.createRegionOnFileSystem(conf, fs, tableDir,
hri);
{code}
The above is from branch-1.
If return type for the method is to be changed, another JIRA should be opened.
> TestRegionOpen#testNonExistentRegionReplica fails due to NPE
> ------------------------------------------------------------
>
> Key: HBASE-20052
> URL: https://issues.apache.org/jira/browse/HBASE-20052
> Project: HBase
> Issue Type: Test
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Major
> Fix For: 1.5.0, 2.0.0-beta-2, 1.4.3
>
> Attachments: 20052.v1.txt, 20052.v2.txt
>
>
> After HBASE-19391 was integrated, the following test failure can be observed:
> {code}
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.TestRegionOpen.testNonExistentRegionReplica(TestRegionOpen.java:122)
> {code}
> This was due null being returned from
> HRegionFileSystem#createRegionOnFileSystem().
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