[YARN-6874] Supplement timestamp for min start/max end time columns in flow run table to avoid overwrite

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, YARN-5355, 3.0.0-beta1, YARN-5355-branch-2
• Component/s: timelineserver
• Labels: atsv2-hbase
• Hadoop Flags: Reviewed
• Assignee: Vrushali C
• Reporter: Varun Saxena
• Created: 26/Jul/17 18:08
• Updated: 21/Oct/17 06:05
• Resolved: 10/Aug/17 09:09

Description

Following test case is failing in YARN-5355 branch.
This is coming because we are not supplementing the timestamp for FlowRunColumn i.e. min_start_time and max_end_time columns, post YARN-6850 which can lead to a clash, if 2 writes for app created events happen at the same time, which is true for this test case.
To fix this, we need to pass true flag into ColumnHelper constructor. I did encounter this failure once earlier too.

testWriteFlowRunMinMax(org.apache.hadoop.yarn.server.timelineservice.storage.flow.TestHBaseStorageFlowRun)  Time elapsed: 0.088 sec  <<< FAILURE!
java.lang.AssertionError: expected:<1425026900000> but was:<1425026901000>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:555)
	at org.junit.Assert.assertEquals(Assert.java:542)
	at org.apache.hadoop.yarn.server.timelineservice.storage.flow.TestHBaseStorageFlowRun.testWriteFlowRunMinMax(TestHBaseStorageFlowRun.java:237)