[HDFS-4004] TestJournalNode#testJournal fails because of test case execution order

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: QuorumJournalManager (HDFS-3077)
• Component/s: ha
• Target Version/s: QuorumJournalManager (HDFS-3077)
• Hadoop Flags: Reviewed
• Assignee: Chao Shi
• Reporter: Chao Shi
• Created: 03/Oct/12 23:52
• Updated: 04/Oct/12 01:42
• Resolved: 04/Oct/12 01:42

Description

I'm running HDFS test on HDFS-3077 branch. I found TestJournalNode#testJournal fails sometimes. The assertion failed is:
MetricsAsserts.assertCounter("BatchesWritten", 0L, metrics);

The reason is when testHttpServer is running before testJournal, it will write some logs to JN. The fix is simple: assign a new JID for each test case, so that they will use different metrics.