[
https://issues.apache.org/jira/browse/HBASE-18923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16189916#comment-16189916
]
Pankaj Kumar commented on HBASE-18923:
--------------------------------------
After HBASE-18796, RegionServer create daughter region entries with empty/null
server name (earlier it was same server). So by the time region server open the
daughter regions and update the location, test case wait is getting over since
it found the HRegionLocation size as 2.
{noformat}
// tell the master to split the table
admin.split(TABLE);
// give some time for the split to happen
long timeout = System.currentTimeMillis() + (15 * 1000);
while (System.currentTimeMillis() < timeout && m.size()!=2){
try {
Thread.sleep(250);
} catch (InterruptedException e) {
LOG.warn(StringUtils.stringifyException(e));
}
// check again
m = regionLocator.getAllRegionLocations();
}
// should have two regions now
assertEquals(m.size(), 2);
{noformat}
Log observed while reproducing issue,
{noformat}
2017-10-03 23:42:23,167 INFO [main] rest.TestTableResource(143): regions:
[region=TestTableResource,,1507045342105.8e80f79bc5e1ca9c9b9397142adfd144.,
hostname=null, seqNum=-1,
region=TestTableResource,ncu,1507045342105.afd377bd152fd021f304ed474a98298d.,
hostname=null, seqNum=-1]
{noformat}
So during checkTableInfo() it met NPE.
> TestTableResource flaky on branch-1
> -----------------------------------
>
> Key: HBASE-18923
> URL: https://issues.apache.org/jira/browse/HBASE-18923
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Andrew Purtell
>
> Occasional NPE
> Flaked tests:
> org.apache.hadoop.hbase.rest.TestTableResource.testTableInfoPB(org.apache.hadoop.hbase.rest.TestTableResource)
> Run 1: TestTableResource.testTableInfoPB:271->checkTableInfo:184 NullPointer
> Run 2: PASS
> org.apache.hadoop.hbase.rest.TestTableResource.testTableInfoXML(org.apache.hadoop.hbase.rest.TestTableResource)
> Run 1: TestTableResource.testTableInfoXML:254->checkTableInfo:184
> NullPointer
> Run 2: PASS
> Tests run: 213, Failures: 0, Errors: 0, Skipped: 0, Flakes: 2
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
